"Conclusion Of Onion Cell" Essays and Research Papers

Conclusion Of Onion Cell

Cheek and Onion Cell Experiment The aim of this experiment will be to show that different cells have different structures and textures. Hypothesis I believe that viewing these different cell types under the microscope will show more detail and variations between the cells. Method Apparatus All apparatus was collected and setup as shown in the table below. CHEEK CELL ONION CELL Microscope Microscope Slide Slide Methylene Blue Iodine Spatula Microscopic Cover Slip Microscopic Cover...

Cell, Cell type, Cell wall 260  Words | 3  Pages

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Osmosis in Red Onion Cells

Osmosis in Red Onion Cells By: Youssef Gharib Brief Description of Osmosis in Red Onion cells: Osmosis is the diffusion of water from an area of low concentration to an area of high concentration across a semi-permeable membrane. The purpose of this lab is to compare the three different types of solutions affect on the relative size of the vacuole to the cell, the outer membrane of onion red cells (tunics) are used to figure out the different types. In the red onion you can see effects promptly...

Cell, Onion, Organelle 1397  Words | 5  Pages

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Compare the Size of Cheek Cell and Onion Cell

the size of cheek cell and onion cell DCP: Introduction: In this experiment, Onion cells (Allium cepa) Cheek cells (Homo sapiens) were measured and compared. The aim of this experiment is to find out how both cells differ by comparing their size. Onion cells (Allium cepa) is plant cell and Cheek cells (Homo sapiens) is an animal cell. Hypothesis: The size of an animal cell (Homo sapiens) should be smaller than a plant cell (Allium cepa). Because a plant cell has cell wall which is to maintain...

Cell, Cell wall, Eukaryote 793  Words | 4  Pages

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experiment onion cell-biology

B04 onion skin lab SNC 2D Name:______________________________ Lab:  Investigation of the Structure of Onions Cells Purpose: To investigate the structure of onion cells and become familiar with some of the basic parts of  a cell.  This lab will also introduce you to the technique of preparing a wet mount slide. Materials: microscope pencil  cover slips lens paper paper towels blank white paper ruler known field of views beaker tweezers glass slides  eraser medicine dropper ...

Laboratory equipment 1055  Words | 4  Pages

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osmosis in onion cell

EFFECT OF SODIUM CHLORIDE ON ONION EPIDERMAL CELLS INRODUCTION A living plant cell will shrinks or swells depending on the solute concentration of the cell in relation to the solute concentration of the fluid surrounding the cell (1). It follows that water will move from a region of high water concentration to a region of low water concentration therefore, if a cell is placed in a hypertonic solution water will move from the cell into the solution until the cell shrinks(1). Further water loss...

Cell, Cell biology, Cell membrane 743  Words | 3  Pages

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Observing Plasmolysis in Onion Cells (Allium cepa)

OBSERVING PLASMOLYSIS IN ONION CELLS (_ALLIUM CEPA_) I. INTRODUCTION Plasmolysis is the process in plant cells in which the cytoplasm is separated from the cell wall as a result of water loss through osmosis. Osmosis is a type of passive transport involving movement of water molecules across a partially permeable membrane. 1. RESEARCH QUESTION How does 15% NaCl solution affect the appearance of onion cells? 2. HYPOTHESIS If onion cells are submerged in solutions of NaCl of different concentrations...

Bacteria, Cell, Cell membrane 743  Words | 6  Pages

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Osmosis: Sodium Chloride and Onion Cells

to an onion cell? Materials: (per student group): red onion epidermis forceps, dropper distilled water NaCl solution paper towels microscope slide cover slip Procedure 1. Make a wet mount of the red onion epidermis. 2. Examine under low power. When you have a clear view of several cells, switch to high power. Make a labeled drawing (cell wall, membrane, cytosol) of your cells. This will give you a record of the original appearance of the onion cells. ...

Cell membrane, Cell nucleus, Onion 442  Words | 3  Pages

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out of the biological material and collected in suitable receiving vessels. AIM OF EXPERIMENT * To view the parts of a cell * To differentiate between plant and animal cell APPARATUS 1. Microscope 2. Filter paper 3. Cover slip 4. Glass slide 5. Knife 6. Litmus paper MATERIALS 1. Potato 2. Onions 3. Iodine 4. Cheek cells 5. Methylene blue 6. Distilled water PROCEDURES A. Observation of starch grain i. The potato was cut to obtain...

Bacteria, Cell, Cell membrane 1210  Words | 4  Pages

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Microscope and Onion

Observing Onion Cells Science 8 Observing Onion Cells ***Do not write anywhere on this piece of paper!!! It will be used again this afternoon!!!***** Instructions. On a piece of paper, write the title (see above), the date, your block, and your name. Then copy out the problem (see below). Problem. What structures can you observe in an onion cell when using a compound light microscope? Hypothesis. On your lab report, below your Problem, write a Hypothesis that will...

Lens, Magnification, Microscope 1232  Words | 5  Pages

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Experiment to look at onion cells using a light telescope Experiment Write Up

Looking at onion cells using a light microscope. Apparatus; - 1x Light Microscope. - 2x Pipettes. - 1x Beaker (100 ml). - 1x Small Onion. - 1x Knife. - 1x Forceps. - 1x Microscope Slide. - 1x Cover Slip/Glass. - Water. - Iodine Solution. - Marble Tile. - Plastic Gloves. - Window/Strong Light Source. Pre-Practical - Setting Up the Experiment; Place the onion onto a marble tile. Using a knife, chop the onion into pieces that are roughly 1.5-2 centimeters. Then discard the rest of the onion. Place...

Laboratory glassware, Lens, Microscope 703  Words | 5  Pages

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Onion Cell

1: fundamentals of science. Title An investigation of an onion cell using a light microscope. Aim: The aim of this investigation is to identify the cells within an onion skin using a light microscope. An onion cell is a plant cell which through the light microscope, it should outline the cell wall, cell membrane and the nucleus. Introduction: Plant cells have a cell wall and cell membrane which animal cells do not have. The cell wall provides support and is relatively rigid, which consists...

Bacteria, Cell, Cell membrane 493  Words | 2  Pages

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Cells Biological

Experiment title: Preparation of Biological Materials for Microscopic Examination Objectives: 1. To learn how to use a microscope. 2. To study the cell structure of starch grains, onion cells and cheek cells. 3. To differentiate the difference between starch grains, onion cells and cheek cells. Introduction: Microscope is an optical instrument use to magnify micro objects that hardly or impossible to be observed by naked eyes, so that the objects can be studied. Compound light microscope...

Cell, Cell biology, Cell wall 1414  Words | 5  Pages

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Ia - Onion & Ox Eye Cell

Joanne Chan 12C Joanne Chan 12C Size of Allium cepa cells and Ovibos moschatus Oculi cells: Data collection and processing Raw data Table 1: Longest length recorded of Allium cepa cells and Ovibos moschatus Oculi cells Length of Allium cepa cells/ m - ±5.0 | Diameter of Ovibos moschatus Oculi cells/ m - ±5.0 | 330.0 | 25.0 | 360.0 | 30.0 | 320.0 | 30.0 | 280.0 | 40.0 | 300.0 | 40.0 | 350.0 | 30.0 | 300.0 | 30.0 | 290.0 | 30.0 | 420.0 | 20.0 | 280.0 | 40.0 | 310...

Arithmetic mean, Cell, Cell wall 1275  Words | 5  Pages

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epidermic cell observation

between epidermal cell number or size in various age layers of three month (61 day) old Allium cepa? Terry Lan Beijing World Youth Academy Data Collection and Presentation Data collection The number of layer in 1 Allium cepa sample* is counted by the researcher. 4 samples of epidermal cell in each layer of the Allium cepa is taken and observed under middle power (10x16x) by the researcher. The number of cells across each microscope length (2mm) in each epidermal cell sample is counted...

Allium, Arithmetic mean, Garlic 449  Words | 5  Pages

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Cell Biology Meiosis and Mitosis

Cell Biology (CP8121) Experiment 2: Observing Mitosis and Meiosis on cell specimens (Formal report) Name: Wong Chung An Class: DMLS/FT/1B/02 Admin number: P1138687 Summary This experiment aims to observe mitosis and meiosis on cell specimens. It involves the modelling of the stages of meiosis and also the staining procedures to identify mitosis in onion root tip. There are two parts to the procedure of the experiment whereby the first is staining and observing mitosis in onion root tips...

Cell, Cell cycle, Cell division 1451  Words | 6  Pages

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Cell Cycle And Mitosis LAB

purpose of the investigation is to determine the time an onion cell spends in each part of the cell cycle. B. The significance of this investigation is to help us understand and know how long cells are undergoing mitosis. My personal interest is to know the phases of mitosis in cells in order to someday help find cures for cancer. C. The cell cycle is a chronological set of events, culminating in cell growth and division into two daughter cells. Some of the reasons why mitosis occurs include growth...

Cell cycle, Cell nucleus, Centrosome 529  Words | 4  Pages

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Cell and Light Microscope

out a practical examination on a plant (onion) and an animal (cheek) cell under a light microscope. The stain methods I am going to use are iodine for my onion cell and methylene blue for my cheek cell. Introduction All animals and plants are made up of cells. Animal and plant cells are made from millions of tiny cells, so small that we are unable to see them with our naked eye. Animals and plants have many features in common within a cell such as a cell membrane, cytoplasm, mitochondria, ribosomes...

Bacteria, Cell, Cell wall 1048  Words | 5  Pages

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The Cell structure and function

01) The Cell Structure and function Abstract In this lab the structures of various cells were viewed through a compound microscope. The bacteria in yogurt was viewed a long with a slice of potato, and a thin skin of red onion. The potato was dyed with iodine while the red onion was dyed with methane blue. The students had to assemble the first three slides. Two more slides were provided these are the yeast and protozoa cells. Those two are also viewed...

Archaea, Bacteria, Cell 713  Words | 3  Pages

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Extraction of DNA from onions

EXTRACTION OF DNA FROM ONIONS ABSTRACT The purpose of the experiment was to experience firsthand the isolation of DNA form a plant tissue without destroying its structure and sequence. A white onion was used for the experiment. After several processes, DNA isolate was the visible result. Different chemical tests were performed on the DNA isolate, namely: Dische Test, Murexide Test, Wheeler-Johnson test and Test for Phosphate. Visible results were then noted. INTRODUCTION DNA (deoxyribonucleic...

Bacteria, Cell, Cell membrane 1457  Words | 6  Pages

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Onion and Calamansi Extract as Cockroach Killer.Docx

"Onion and Calamansi Extract as Cockroach Killer"  A. Background of the study  Cockroaches are one of the most commonly noted pest insects due to their population. More than 3000 species live in tropical regions. They are abundant in and aroud dwellings in temperate areas. Cockroaches are also the hardiest insects on the planet. Some species are capable of remaining active for a month without food or being able to survive on limited resources. Since this insects feed on homan and pet foods they...

Allium, Bulb, Garlic 1150  Words | 5  Pages

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correct. High Power should show only a couple of cells that take up most of the viewing field. The micoscope is designed to view the slide at different spots, so not all drawings will look like this one. Images were snipped from the virtual microscope's flash animation. Scanning (4) | Low (10) | High (40) | 3. Go to google and type "cheek cells" into the search box. Click on "images" to see all the images google has found on the web showing cheek cells (there should be hundreds). What do all of...

Bacteria, Cell, Cell membrane 1269  Words | 4  Pages

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Conclusion In part A of this experiment, we transformed the bacteria into an antibiotic resistant form by inserting a plasmid into it. We used heat shock in order to make the bacteria capable to uptake a plasmid in the presence of calcium ions that help disrupt the cell membrane (heat shock is the combination of altering hot and cold). When they are capable of accepting plasmids, the bacteria are incubated with plasmids that carry the resistance to a particular antibiotic, in this case ampicilin...

Agar plate, Antibiotic resistance, Bacteria 970  Words | 3  Pages

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Cells Lab Write Up

Period: H    Plants and Animal Cells    Abstract:  In this lab, you will find out how plant and animal cells are alike and how they are different.  The onion elodea cells were both plants, so they had a cell wall. The cheek cells were animal cells, so  they did not have a cell wall.  Eukaryotic cells contain structures called organelles that carry out life  processes. Eukaryotic cells can be classified by the types of organelles they contain. In plant and animal  cells, similarities and differences exist because of varied life functions...

Cell, Cell nucleus, Cytoplasm 920  Words | 4  Pages

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An Investigation Into the Effects of Osmosis Potato Cells

AN INVESTIGATION INTO THE EFFECTS OF OSMOSIS POTATO CELLS SKILL AREA P: PLANNING Introduction The aim of this investigation is to see the effect of varying concentrations of glucose solution on the amount of osmotic activity between the solution and a potato chip. An investigation into Plasmolysis in onion cells was undertaken prior to this experiment, in order to gain some knowledge of osmosis to enable a hypothesis to be formed. Preliminary Work and Scientific Knowledge ...

Cell, Cell wall, Osmosis 1523  Words | 5  Pages

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Cells Cell

Cells Cells Cell division and cancer Victoria Brothwell Strayer University Cells Introduction Regular cells and cancel cells are extremely different. Depending on the cancer that one may have cancer cells have more chromosomes that are scattered which is for why cancer cells are formed. In cell division all living things obtain cells in which come from other preexisting cells. If normal cells are do not divide and make new cells then cancer will occur. In order of all cells to be...

Cancer, Cell cycle, Cell division 543  Words | 3  Pages

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Plant Cell

PLANT CELL Introduction Plant cell is the basic unit of structure and function in nearly all plants. The range of specialization and the character of association of plant cells are very wide. In the simplest plant forms a single cell constitutes a whole organism and carries out all the life functions. In just slightly more complex forms, cells are associated structurally, but each cell appears to carry out the fundamental life functions, although certain ones may be specialized...

Cell, Cell wall, Endoplasmic reticulum 1161  Words | 5  Pages

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Synopsis for Cell Division Report

| | 5. Discussion | 12 | 5.1 Mitosis | 12 - 13 | 5.2 Cytokinesis | 14 | 5.3 Meiosis | 15 - 18 | | | 6. Conclusion | 19 | | | 7. Recommendation | 19 | | | Reference | R-1 | LIST...

Cell, Cell cycle, Cell wall 487  Words | 4  Pages

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Poor or middle income group people 5. Businessmen 6. Creating Brands 7. Adds and promotions 8. Low price strategy 9. Varieties available for different age groups 10. Various schemes for pre-paid and post paid customers Conclusion and Recommendation:...

Bharti Airtel, Cellular network, GSM 827  Words | 5  Pages

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Observing Mitosis and Meiosis on Cell Specimens

Mitosis and Meiosis on Cell Specimens Name: Low Celine Tables of Content…………………………………………………………………………….ii List of Illustrations…………………………………………………………………………… iii Synopsis………………………………………………………………………………………. iv 1. Objectives of Experiment………………………………………………………………… 1 2. Introduction……………………………………………………………………………….1 3. Theory…………………………………………………………………………………….. 2 4. Procedures………………………………………………………………………………... 3 5.1 Preparation of Onion Root Tip…………………………………………………………...

Cell cycle, Chromosome, Eukaryote 1967  Words | 6  Pages

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Osmosis in Onion Cell

in relation to three onion cells and the impact on the cells structure. A small square of a red onion skin (membrane) was observed under a microscope at high power (X40) magnification. The observation showed a large number of onion cells. The structure of one onion cell had a general rectangular shape with a developed cell wall, which gives the rectangular shape to the cell and a cell membrane just beneath it. The observation under the microscope of a cell of an onion skin soaked for 15 minutes...

Cell, Cell membrane, Cell wall 668  Words | 2  Pages

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Cell Cycle and Dividing Cells Number

Science 9-Biology Observing Cell Division Lab Purpose: To use the microscope to observe and sketch plant cells and animal cells in various stages of the cell cycle. Equipment and Materials: Compound Microscope Laptops Prepared Slide of Onion (Allium) Root Tips Prepared Slide of Whitefish Mitosis BC Science 9 Text pg. 162-163 Part 1-Plant Cells Procedure: 1. Take a prepared slide of an onion tip root and observe it under low power...

Binary fission, Cell, Cell cycle 645  Words | 5  Pages

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CONCLUSION Angiosperms (flowering plant) include in phylum Anthophyta.Angiosperms are plant that have flowers and fruit. Their part of the flower is a carpel which surrounds and protects the ovules and seeds. The fruit surrounds the embryo and aids seed dispersal. The great majority of angiosperms are classified either as monocots or eudicots.Monocot embryos have a single seed leaf (cotyledon), and pollen grains with a single groove while eudicots (true dicots) have two cotyledons, and pollen...

Dicotyledon, Flower, Flowering plant 719  Words | 3  Pages

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Red Onion Cell Lab

this principle, a purple onion cell is going to be bathed in different concentrations of salt (NaCl) water. Problem: How do solutions of various salt concentrations influence osmosis in relation to an onion cell? Hypothesis What will happen to the onion cell if it is placed in salt water? What will happen to the onion cell if it is placed in distilled water? If ..the onion cell is placed in salt water then... the cell will shrivel up ...

Bacteria, Cell, Cell membrane 573  Words | 2  Pages

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Bangladesh, Bengali language, Dhaka 480  Words | 4  Pages

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Examination of Onion Epidermal Cells

Examination of Onion Epidermal Cells Requirements: Iodine solution – HARMFUL Onion Distilled Water Apparatus: Microscope Microscope slides & cover slips Tile Knife Tweezers Pasteur Pipettes Assignment: I was given the onion once it had been chopped up on the tile, ready for me to peel back the skin I required using the tweezers. I then placed piece of onionskin onto the microscope slide, making sure there were no folds or creases, and put a drop of iodine onto the slide...

Cell, Cell nucleus, Cover slip 339  Words | 2  Pages

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2015 OsmosisLabs Onions Potatoes

OSMOSIS Han Cheng Water passes through aquaporins in cell membranes from an area of high water concentration (low solute concentration) to an area of low water concentration (high solute concentration). This process is called osmosis. It requires no cellular energy to be used, and occurs due to the random, continuous motion of all molecules. If a cell is placed in an environment in which the concentration of water is less than in the cell (hypertonic), water will flow from the cytoplasm and/or...

Bacteria, Cell, Cell membrane 1728  Words | 8  Pages

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Extracting Onion Dna

Extraction of DNA from an Onion Molecular biologists and biochemists are involved with research in finding out as much as possible about the DNA in plants. DNA was discovered in the 1950’s, there still remains a lot to be known about it, especially how it is used to determine the physical traits that we all have, and how it regulates the workings of the body. deoxyribonucleic acid is a chemical, we can do reactions with it just like we can work with any other chemical. Experiment: Note: ...

Buffer solution, Carbonic acid, Chemical polarity 1346  Words | 4  Pages

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a.1 Eukaryotic Cell vs Prokaryotic Cell All cells can be classfied into prokaryotes and eukaryotes. Prokaryotes were the only form of life on Earth for millions of years until more complicated eukaryotic cells came into being through the process of evolution. Comparison chart All attributes  Differences Similarities | Eukaryotic Cell | Prokaryotic Cell | Nucleus: | Present | Absent | Number of chromosomes: | More than one | One--but not true chromosome: Plasmids | Cell Type: | Multicellular...

Archaea, Bacteria, Cell 1020  Words | 4  Pages

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Cell Respiration Respiration is the process by which organisms burn food to produce energy. The starting material of cellular respiration is the sugar glucose, which has energy stored in its chemical bonds. You can think of glucose as a kind of cellular piece of coal: chock-full of energy, but useless when you want to power a stereo. Just as burning coal produces heat and energy in the form of electricity, the chemical processes of respiration convert the energy in glucose into usable form. Adenosine...

Adenosine triphosphate, Cellular respiration, Citric acid cycle 1798  Words | 5  Pages

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Cell Division

October 2014 Cell Division Mitosis Abstract Mitosis and Meiosis: Cells can be divided in unicellular organisms or in multi-cellular organisms. DNA controls the cell division. Bacteria reproduce by a process called binary fission. Bacteria have one chromosome that's attached to the cell membrane. The chromosome replicates and the two copies separate as the cell grows. Over a period of time this one cell makes two cells. Eukaryotes do the process of mitosis. In mitosis, each daughter cell gets about...

Cell, Cell cycle, Chromosome 1622  Words | 7  Pages

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Monologue of an Onion

“Monologue for an onion” by Suji Kwock Kim The poem “Monologue for an onion” by Suji Kwock Kim begins with the peeling of an onion that could very well describe her and her agony, but further reading reveals that the majority of the poem is directed at the person doing the peeling. The reader cannot help but sympathize with the peeled onion, whether the emotions stem from the hurt state of the onion or from the aggressive peeler. Clearly the poet’s attack of the peeler grabs the attention of...

Human, Humans, Psychology 1383  Words | 4  Pages

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Cells are considered the basic units of life in part because they come in discrete and easily recognizable packages. That's because all cells are surrounded by a structure called the cell membrane. The cell is the very smallest unit of living matter. All living things including plants and animals are made up of cells. Cells are made of atoms, which are the smallest units of matter. There are many different kinds of cells. The two kinds you are most likely to be familiar with are animal and plant...

Archaea, Bacteria, Cell 1163  Words | 5  Pages

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Onion Dna Extraction

Filter: To separate by passing a mixture through a selective membrane. Emulsify: To physically break up lipid into smaller lipid globules. 2. To maintain an environment in which the DNA will not be degraded and to help separate the DNA from other cell components. Tris maintains a constant pH. EDTA chelates metal ions. NaCl provides Na+ ions that will block negative charge from phosphates on DNA. 3. Negatively charged phosphates on DNA cause molecules to repel each other. The Na+ ions will form...

Biochemistry, Cell, Cell membrane 761  Words | 3  Pages

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plant cell and animal cell


Bacteria, Cell, Cell membrane 1285  Words | 7  Pages

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The Amount of Time a Cell Spends in Each Stage of Mitosis

time that was spent by a cell in each of the phases of mitosis. Also, it is used to be able to compare the process of mitosis between plant and animal cells. Background: • Mitosis: This is the process by which a cell duplicates the chromosomes in its cell nucleus in order to generate two identical daughter nuclei. • Interphase: This particular stage is divided into three phases, G1 (first gap), S (synthesis), and G2 (second gap). During all three phases, the cell grows by producing proteins...

Cell, Cell cycle, Cell nucleus 1242  Words | 4  Pages

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How to Chop Onions without Tears

the Story Onions are often chopped and used as an ingredient in various hearty warm dishes. Onions, along with many other plants in the Allium species absorb sulphur in the soil. Majority of households here in the Philippines experience irritation of eyes while cutting onions. Onions are common ingredients in cooking so it’s impossible to avoid cutting some. The onion has been used as an ingredient in various dishes for thousands of years by many cultures around the world. World onion production...

Allium, Eye, Garlic 728  Words | 3  Pages

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Eukaryotic Cell Lab Report

Differentiating Between Prokaryotic and Eukaryotic Cells, Distinguish Among Plant, Animal, and Protist Cells, and Identifying the Organelles that are Evident in Them Introduction There are two different types of cells, prokaryotes and eukaryotes. Prokaryotes, such as bacteria, lack a nuclear membrane and other membrane bound organelles. Their genetic material consists of a single molecule of singular DNA. Eukaryotes, such as plant and animal cells, have a nuclear membrane and other membrane bound...

Bacteria, Cell, DNA 1081  Words | 4  Pages

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To Examine Plant and Animal Cells

Title: To examine an animal and cheek cell using a compound microscope Date: 25th September 2012 Lab Partner: xxxxxxxxxxxxx Objective: The main aim of this experiment was to prepare a wet mount of human cheek cells and a wet mount of plant cells and examine them both under a compound microscope. Introduction: Cells are the basic units of life which make up every structure in the human body. They are the smallest units which are living. All cells contain different organelles which...

Bacteria, Cell, Cell wall 407  Words | 3  Pages

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Gen Bio 1 'the Cell' Lab

Lab 4 – The Cell Answer Key Procedure 4.3 Draw a picture of a single Elodea cell and label all visible structures. See the diagram in your lab manual. Without staining, the only structures that should have been clearly visible should have been the cell walls and the green chloroplasts. Is this cell prokaryotic or eukaryotic? ______Eukaryotic_______________________ What evidence do you have to support this claim? The presence of organelles (chloroplasts) and its large size. ...

Bacteria, Cell, Cell membrane 434  Words | 3  Pages

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Onion From Wikipedia, the free encyclopedia Jump to: navigation, search "Onions" redirects here. For the surname, see Onions (surname). This article is about the plant term. For other uses, see Onion (disambiguation). Onion Onions Scientific classification Kingdom: Plantae Division: Angiosperms Class: Monocots Order: Asparagales Family: Alliaceae Genus: Allium Species: A. cepa Binomial name Allium cepa L. Allium cepa var. proliferum, Top Onion The onion...

Allium, Leek, Onion 2973  Words | 11  Pages

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Calamansi and Onion

structural heteropolysaccharide contained in the primary cell walls od terrestrial plants.  It was  first isolated and described in 1825 by Henri Braconnot.  It is produced commercially as a white to light brown powder, mainly extracted from citrus fruits and is used in food as a gelling agent particularly in jams and jellies. In plant cells, pectin consists of a complex set of polysaccharides (see below) that are present in most primary cell walls and particularly abundant in the non-woody parts...

Calamondin, Cell wall, Citrus 2654  Words | 7  Pages

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Cell Division

7/6/2011 CELL DIVISION CHAPTER 3: CELL DIVISION 3.1 THE CONCEPT OF CELL DIVISION 3.2 THE CELL CYCLE 3.3 MITOSIS 3.4 MEIOSIS  Related to the theory of cells Rudolph virchow ; 1855 stated; „Omnis cellula e cellula‟ Every cell is from a cell or “All new cells are derived from other cells” A cell (daughter cell) is originated from another cell ( ) through .  In cell division, is inherited from one generation to the next.  Involve the distribution of genetic material (DNA) to each daughter...

Cell, Cell cycle, Cell nucleus 676  Words | 6  Pages

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Stem Cells

103 Stem cells are known as the foundation of our bodies, and without them we would be unable to repair various organs or tissues whenever they may become damaged. Stem cells are very extraordinary cells because after division and a new cell is created, they are able to either remain a stem cell or turn into an even more specialized cell such as a muscle cell, red blood cell, or brain cell. Until recently, there were only two major types of stem cells, known as embryonic stem cells and adult stem...

Adult stem cell, Bone marrow, Cellular differentiation 1217  Words | 5  Pages

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Monologue for an Onion

The poem, “Monologue for an Onion” written by Sue Kim, the onion is a metaphor and is the whole poem is written about it and based off of it. The basic main viewpoint of the poem is about the feelings and thoughts that onion experiences when being handle by the person or more specifically when it is being cut. The poem revolves around the whole idea of how the onion feels and thinks as the person cuts away at it and how it reflects on the actions of the person and the person themselves. Sue...

Cold War, Korea under Japanese rule, Korean War 1262  Words | 3  Pages

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Chemical Composition of Cells

BIOL 140 Lab—The Chemical Composition of Cells Name ____________________________ I) Introduction All cells contain four major types of macromolecules: carbohydrates, lipids, nucleic acids, and proteins. In today’s lab, we will be studying three of the four-proteins, carbohydrates and lipids. Various chemical tests can be used to detect the presence of each of these molecules. Most of the tests involve a color change visible to the eye. If a color change is observed, the test is considered positive...

Acid, Carbohydrate, Glucose 2024  Words | 6  Pages

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Onion Production

Commercialising from the bottom up: Onions in central Tanzania Draft Copy By Khamaldin Mutabazi, Ntengua Mdoe & Steve Wiggins Key points: • With minimal assistance and direction, small farmers in central Tanzania have created thriving plots of irrigated onions, marketed in Dar, other parts of Tanzania and in the region. • Lack of formal credit has not prevented many farmers fertilising their crops heavily. Two villages have been able to overcome poor road access. • Informal marketing work well...

Agricultural science, Agriculture, Aquifer 1511  Words | 5  Pages

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 STEM CELLS Where are stem cells sourced from? Stem cells are sourced from three main sources, Embryos, bone marrow and umbilical cord blood. Each different sources’ Stem Cells are either totipotent, pluripotent or multipotent. Refer to Figure 1 Figure 1 Stem Cells can be categorised into their capability of being cultured into a different cell. Embryonic Stem Cells: Are pluripotent cells meaning they can be cultured into most cell types. The Embryonic Cells are sourced from in the internal cell...

Blood, Bone marrow, Developmental biology 819  Words | 3  Pages

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Photovoltaic Cells

photovoltaic cell. 4.1. How photovoltaic cell works. 4.2. Advantages of generating electricity by means of photovoltaic cell. 4.3. Disadvantages of generating electricity by means of photovoltaic cell. 5. Conclusion 6. References 1. Abstract This report focuses on the importance of solar energy in the world since it is a renewable source of energy and the benefits of renewable energy in the world. It also discusses on how electricity can be generated using photovoltaic cells, the advantages...

Energy development, Fossil fuel, Photovoltaics 1440  Words | 5  Pages

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Sickle Cell

Sickle cell disease is present usually in those of African or Mediterranean descent (Saladin 2007). About 1.3% of African Americans have sickle cell (Saladin, 2007). Sickle cell was originated in Africa where malaria was killing a vast number of people (Saladin, 2007). The sickle cell hemoglobin is not able to be digested by the parasites that cause malaria, making those with sickle cell resistant to malaria (Saladin, 2007). This paper will discuss a normal erythrocyte compared to an erythrocyte...

Blood, Bone marrow, Cell nucleus 768  Words | 3  Pages

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Cell Structure

Introduction Cell is the simplest unit of life as we see it now. All organisms are made from cells. It is first explained by Robert Hooke in the year 1665 and it is now known to be of almost universal occurrence in organisms. Cell theory refers to the idea that cells are the basic unit of structure in every living thing. Development of this theory during the mid 1600s was made possible by advances in microscopy. In the hierarchy of biological organization, the cell is the simplest collection...

Bacteria, Cell, Cell membrane 1208  Words | 4  Pages

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