Plastids • Photosynthesize or store materials • Found only in plants and certain protists. • A familiar plastid is the chloroplast which contains the green pigment chlorophyll and is the site of photosynthesis • Light is converted to energy of chemical bonds‚ provides food for the plant and for other organisms. • Chloroplasts have a double membrane like mitochondria. o Chloroplasts contain membrane structures that look like stacks of pancakes – called grana. o The circular stacks that make up grana
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Outline Terms and Vocabulary Autotroph Photosynthesis Photon Pigment Chloroplast Reaction Center Electron Donor Molecule Electron Transport System Ferredoxin NADPH RuBP PGA Cuticle Stomata Rubisco Photorespiration C4 Pathway Concepts 1. What are two Adaptations of plant leaves for capturing light? 2. Describe the properties of Light Energy in terms of energy and wavelength. 3. Why are Pigments important for Photosynthesis? 4. What two types of reactions take
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In order to understand photosynthesis‚ we need to know that chloroplasts absorb light energy from the sun‚ the plant then takes that energy along with water and carbon dioxide and changes it to sugar and oxygen. This happens in order for the plants to grow. But‚ light energy comes in a spectrum of colors called visible light. When visible light is absorbed it is also reflected‚ such as the green and yellow range. Photosynthetic pigments also protect plants from UV rays. Carotenoids absorb light in
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Chapter 1 * animal Multicelled consumer with unwalled cells; develops through a series of stages and moves about during part or all of the life cycle. * archaean Member of a group of single-celled microorganisms that superficially resemble bacteria‚ but are genetically and structurally distinct. * atom Particle that is a fundamental building block of all matter. * bacterium Single-celled organism belonging to the Domain Bacteria; cells are typically walled and do not
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Title: Preparation and Assay of Phenolase and Peroxidase from Sweet and Irish Potato Aim To design and conduct an experiment to demonstrate the presence of enzyme activity in the preparation provided. To examine the effect of the inhibitors provided. To test whether the other phenolic substrates provided can be oxidized by the enzyme preparation. To test for the presence of peroxidase activity in the enzyme preparation. To test the effect of the inhibitor provided on peroxidase activity
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energy into chemical energy by using photosynthesis. The species of green plant leaves that were used in this experiment were Hedera helix‚ commonly known as English Ivy. These plant leaves have both mitochondria and chloroplasts. The process of photosynthesis takes place in the chloroplasts and aerobic respiration is carried out in the mitochondria‚ these reactions may occur simultaneously. To determine the rate of photosynthesis‚ we estimate the changes in the amount of oxygen produced in leaf disks
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First of all if we were to be able to make our own food trough photosynthesis‚ we should have chlorophyll‚ which is the important pigment in absorbing sunlight. As an effect we will all be green in color. This may be good as there will be only one race but then again our cell must be modified in order for that to happen. Most important our cells must contain chloroplast where photosynthesis occurs. It would be great if we could make our own food through photosynthesis. This is because we do not need
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1. Identification of Some Macromolecules 1) What are 2 types of treatment controls‚ and explain each. Positive control: gives positive result if experimental conditions were followed correctly Negative control: gives negative result if experimental conditions were followed correctly 2) What are the most abundant elements in living material? Carbon‚ Hydrogen‚ Oxygen‚ Nitrogen‚ Sulfur and Phosphorus 3) What are the 4 major biological macromolecules? Carbohydrates (monosaccharides &
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PATTERNS IN NATURE – Summary Notes 1. ORGANISMS ARE MADE OF CELLS THAT HAVE SIMILAR STRUCTURAL CHARACTERISTICS 1.1 Outline the historical development of the cell theory‚ in particular‚ the contributions of Robert Hooke and Robert Brown The Cell Theory states that: All living things are made of cells (Theodor Schwann & Matthias Schleiden) Cells are the basic structural and functional unit of organisms (Theodor Schwann) All cells come from pre-existing cells (Rudolf Virchow) The historical
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Single Chromosome i. Human chromosomes à ROD c. Protoplasm: Composed of Karyoplasm & Cytoplasm 1. Water w/ particles dissolved/ suspended. a. Cytoplasm= water based w/ organelles. 1. Eukaryotic à Ribosomes‚ mitochondria‚ chloroplasts in cytoplasm. 2. Prokaryotic à Ribosomes in cytoplasm. d. Cell Membrane: Flexible Structure; phospholipid bi-layer. 1. Proteins à Peripheral; integral 2. Semi-permeable (selective). 3. Bacteria make ATP/metabolism mostly at cell
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