Cytoskeleton: | Present | May be absent | DNA wrapping on proteins.: | Yes | No | Ribosomes: | larger | smaller | Vesicles: | Present | Present | Golgi apparatus: | Present | Absent | Mitosis: | Yes | No---but has binary fission | Chloroplasts: | Present (in plants) | Absent; chlorophyll scattered in the cytoplasm | Flagella: | Microscopic in size; membrane bound; usually arranged as nine doublets surrounding two singlets | Submicroscopic in size‚ composed of only one fiber | Permeability
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cells‚ more specifically in the chloroplasts. Chloroplasts are organelles located within specific leaf cells in which the photosynthetic process occurs. The chloroplast organelles are made up of an outer and inner envelope membrane. Like the outer membrane‚ a chloroplasts inner membrane is permeable to H2O‚ CO2 and O2 compounds. However‚ the inner membrane acts as a barrier‚ directing the flow of charged and organic molecules. Within the inner membrane of chloroplasts is an extensive membrane structure
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where plants use sunlight (energy) to synthesize foods forming the products carbohydrates and water (H20 + CO2 + Light CH2O + O2). For photosynthesis to take place they need water‚ carbon dioxide and light and chloroplasts. Light is absorbed inside he thylakoid membrane of the chloroplasts‚ and the carbohydrate reaction or synthesis takes place in the stroma. In plants there are five kinds of chlorophylls with the same basic structure‚ chlorophylls occur as greenish pigments and capture light
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have small kitchen gardens where you both grow tomatoes. His blotchy green and red tomatoes taste much sweeter than your perfectly uniform red ones. Could the sweetness of the tomatoes be effected by the green chloroplasts in the fruit? Hypothesis I personally think that the green chloroplasts do play a part in the sweetness of the tomatoes because it doesn’t state how ripe the tomatoes were when they were eaten‚ what type of soil was used to plant them and if the same type of tomato seeds were used
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chloroplast: in plants‚ contain photosynthetic pigments that turn light‚ CO2 and H2O into glucose | | |5. chromosome: packaging of DNA in nucleus. Functions in cell division
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Lab 4: Photosynthesis and Chromatography of Spinach Leaves Discussion: The chromatography of the spinach leaves was taken to establish what pigments were present in the chloroplasts of the leaves. The solvent carried and separated the different pigments up the cellulose paper. The solvent moved up the paper because of capillary action because of adhesion of the solvent molecules and the paper. The pigments dissolved in the solvent also were carried up the paper and were separated because
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INET Lab Report 2 Microscope and the Cell Template Student: Mavon Riley Email: shantariley@yahoo.com Date: 09/05/2014 I. Purpose of the Microscope II. The Compound Microscope EXERCISE 2.1 – Label the parts of the compound microscope 1. Eyepiece 2. Arm 3. Course Adjustment 4. Fine Adjustment 5. Revolving Nose piece 6. Objective Lenses 7. Stage Clips 8. Stage 9. Iris Diaphragm Lever 10. Condenser 11. Light Source 12. Base EXERCISE 2.2 – Calculate microscope
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Plant Pigments and Photosynthesis Abstract: The purpose of this lab is to separate and identify pigments and other molecules within plant cells by a process called chromatography. We will also be measuring the rate of photosynthesis in isolated chloroplasts. Beta carotene‚ the most abundant carotene in plants‚ is carried along near the solvent front because it is very soluble in the solvent being used and because it forms no hydrogen bonds with cellulose. Xanthophyll is found further from the solvent
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INTRODUCTION Overall‚ light energy drives a flow of electrons along a system of carriers from H2O to NADP+. The carriers are bound to the membrane between reaction centres. Though their precise arrangement is not known‚ the carriers seem to be organized so that the electron flow cause H+ to move from the stroma to the space within the thylakoids. The resulting difference in H+ concentration across the membrane represents a store of energy that is though to drive he formation of ATP. According to
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mitochondria and chloroplasts. The symbiotic relationship was beneficial because the host cell would have provided essential nutrients to the engulfed prokaryotic cell in exchange the smaller prokaryotic cell used these nutrients to synthesize ATP molecules‚ this ATP was used as an energy source by the host cell. The smaller prokaryotic cell was given a safe environment as well as receiving nutrients from the
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