a microscope with a clear understanding of what is happening. With this knowledge and this visual a picture is to be drawn as descriptive as possible for each phase. Materials: The materials needed are; 1) Microscope 2) A slide containing plant cells 3) Blank paper 4) A half of a Petri dish to draw circles 5) A pen. Procedure: The steps to follow in order to properly conduct this lad are; 1) Get a microscope as directed by your teacher. 2) Get a slide from your teacher. 3) Use the
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identical to themselves. This has to happen because if a species were not able to reproduce‚ that species would quickly become extinct. Reproduction consists of a basic pattern: the conversion by a parent organism of raw materials into offspring or cells that will later develop into offspring. The reproductive process‚ whether asexual or sexual always involves an exchange in hereditary material from the parents so that the new organism may also be able to reproduce. Reproductive processes can be categorized
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What phase is this cell undergoing? Telophase 2. What happens after this phase? Cytokinesis 1. The two center side-by-side cells are undergoing two different phases of mitosis. a. What are these phases? Prophase & Metaphase b. What diagnostic features can help you with your decision? The cell under going prophase is starting to lose it’s envelope yet the cell is still very much intact. The cell under going metaphase has spindle fibers all around the cell suggesting its in the
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Topic 2: Cells 2.1.1 Outline the cell theory Outline: To give a brief account or summary All living things are made of cells Cells are the smallest unit of life Cells come from pre-existing cells 2.1.2 Discuss the evidence for the cell theory Discuss: Give an account including‚ where possible‚ a range of arguments for and against the relative importance of various factors‚ or comparisons of alternative hypotheses. 1: All living things are made of cells When living things are observed
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What term describes a harmless noncancerous or precancerous tumor? Student Response Value A. malignant B. benign 100% C. metastatic D. lymphatic E. carcinogenic Score: 1/1 2. What is the name of the process by which cancer cells break off of tumors and spread to other parts of the body? Student Response Value A. carcinogenesis B. mutagenesis C. angiogenesis D. metastasis 100% E. mitosis Score: 1/1 3. Consider a strand of DNA with the sequence GAATTCGGCA
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eukaryotic organelles. ”A eukaryotic cell is sectioned by internal membranes into different functioning categories called organelles. For example‚ the nucleus houses DNA‚ the genetic component that controls the cells activities. (Boundless. “Introduction” Boundless Biology). The Cytoplasm is the material between the cell membrane and the nucleus. It has a lot of responsibilities within the cell. It contains enzymes for breaking down waste and also gives the cell its shape. The Nucleus or the brain
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contemporary biological issue Introduction Stem cells are undifferentiated cells able to differentiate into specialized cell types. These are used for stem cell treatment‚ which is an intervention strategy that introduces new adult stem cells into damaged tissue in order to treat disease or injury. For over 30 years‚ bone marrow and‚ more recently‚ umbilical cord blood stem cells have been used to treat cancer patients with leukaemia and lymphoma because during chemotherapy most growing cells are killed‚ but a donor’s
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Chapter 3: Cell Structure Notes The cell is the basic unit of biologic organization of the human body Protoplasm: an aqueous colloidal solution of carbohydrates‚ proteins‚ lipids‚ nucleic acids‚ and inorganic salts surrounded by a limiting cell membrane Cells in our respiratory tract produce mucus to trap dust and microorganisms that get past the hairs in our nose then move the material to our throat to be swallowed and passed out through the digestive system The most prominent structure in the
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Structures and processes involved in the movement of substances into and out of cells. Epithelial cells – Epithelial cells are also referred to as eukaryotic cells. These types of cells have a unique nucleus and contain membrane-bounded organelles. Epithelial cells absorb and secrete‚ and the structures of a cells organelles can be viewed from an electron microscope. The nucleus – the nucleus of a cell contains most of the cell’s genetic material‚ organized as multiple long linear DNA molecules
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frequency as well as each of the different steps and their time duration. It was found that the interphase stage of both mitosis and meiosis was the longest of all the stages as this was where most of the ‘action’ was happening such as cell growth and duplication of all cell organelles and chromosome replication also. It was also found that mitosis and meiosis have similar stages‚ however‚ they also have a lot of differences such as the end result and what is happening throughout each stage. INTRODUCTION
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