Cell Organelles Nucleus Its function is to control the cell’s activities and retain the chromosomes. The nucleus is bound by a double membrane‚ the nuclear envelope. The nuclear envelope has pores in it to allow the transport of mRNA. The cytoplasm like material is called nucleoplasm which contains chromatin (coils of DNA and histone proteins)‚ it is chromatin that condenses to form chromosomes during cell division. Within the nucleus is a small spherical body called the nucleolus which
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length of the wavelengths that hit the chloroplasts in the plant leaves and effects how fast or if photosynthesis occurs. The equation for photosynthesis is 6 CO2 + 6H2O + light energy=C6H12O6 + 6O2 meaning that when a plant cell absorbs carbon dioxide and water alongside sunlight then the plant will put off glucose and oxygen gas in result. This process is where humans and other heterotrophs get their oxygen to survive. Sunlight is captured through a pigment called chlorophyll‚ which absorbs every
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Ground -appears to be drying oil A single thin layer of ground which to the unaided eye appears as brown‚ but under the microscope it can be seen to consist of a brownish matrix of ochre. The particles are not only charcoal black‚ but multi-coloured pigment particles of lake‚ vermilion‚ smalt‚ azurite‚ malachite and ultramarine. Preliminary drawing and underdrawing There is a drawing on paper once thought to be a sketch for the picture‚ but it’s now presumed to be a drawing afterward but made before
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to make oxygen. Photosynthesis takes place in leaves. The leaves are made up of very small cells. Inside these cells are tiny structures called chloroplasts. Each chloroplast contains a green chemical called chlorophyll which gives leaves their green color. They used to absorb light energy. Photosynthesis in plants generally involves the green pigment chlorophyll and generates much oxygen as a by-product. Plants needs carbon dioxide‚ water‚ sunlight to live and make photosynthesis work. Photosynthesis=
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top 1-2 layers under epidermis—very regular‚ column like‚ tightly packed‚‚ lots of chloroplasts (capture sunlight) spongy mesophyll-irregular shape lots of spaces between cells important for gas exchange stomata- pore‚‚ cells on the side are guard cells regulate moisture movement in and out of cell ------------------------------------------------- Epidermis Chloroplasts Double membrane around the outside 3rd membrane makes flattened sacs called
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COMPARATIVE ANALYSIS OF THE DIFFERENT CELLULAR STRUCTURES CELLULAR STRUCTURES COMPOSITION (Biomolecule) LOCATION (in relation to the cell) NUMBER and DISTRIBUTION PRESENCE/ABSENCE IN ORGANISMS PROCESSES INVOLVED (functions) BODY STRUCTURE/ ORGAN functionally similar to and why? CELL MEMBRANE Glycoprotein Phospholipids Cholesterol Glycolipids Peripheral protein Integral protein Structural Protein Receptor Protein Transport Protein Outer Side of the Cell - Maintains the physical
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Experiment 9 Thin Layer Chromatography Experiment: 9 Title: Thin Layer Chromatography Introduction: Chemical analysis is conducted on specific analytes (specific substance of interest in a mixture)‚ however it is often found that these analytes must be separated for the chemical analysis to conduct their analysis. Chromatography is a set up of laboratory a technique that is used to separate a chemical mixture. This technique is very useful as it allows us to follow the course of
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Separation of Amino Acids by Paper Chromatography Chromatography is a common technique for separating chemical substances. The prefix “chroma‚” which suggests “color‚” comes from the fact that some of the earliest applications of chromatography were to separate components of the green pigment‚ chlorophyll. You may have already used this method to separate the colored components in ink. In this experiment you will use chromatography to separate and identify amino acids‚ the building blocks of proteins
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Membrane (plasma membrane) | "Gatekeeper" Separates the cell from the rest of the environment and helps control what passes in and out of the cell. Semi-permeable: allows some materials to pass through but not all | Chloroplast | A special plastid that contains chlorophyll a pigment that captures the sun’s energy to produce glucose in a process called photosynthesis | Cell Wall | Rigid outer layer made of cellulose that supports and protects the cell (plant‚ fungi‚ and bacterial cells) | Vesicle
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N.S Exam Study Notes • Matter&Material • Matter-everything around you‚ it is anything made of atoms and molecules. It’s anything that has a mass. Matter is related to light and electromagnetic radiation. Usually found in a few forms and it has 5 states- (Solids‚Liquids‚Gases‚Plasmas‚Bose Einstein Condensates) • Mass- It is the amount of material in an object. It is the same on Earth or Mars. It is the amount of matter which an object contains. • Weight- It is how heavy something is. It is a
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