Lactobacillus found in saliva produced lactic acid to cause Snyder’s medium to change color. j. The tube turned yellow after it was exposed to saliva. 6. k. Red algae have phycobilin pigments (phycoerythrin and phycocyanin) that mask the color of the chlorophylls. Brown algae have xanthophyll pigments that mask the green color of the chlorophyll. Green algae have cholorphylls a and b that give a bright green color. l. All algae have chlorophyll. 7. m. The hyphae of Rhizopus
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: How does the different light intensity affect the rate of photosynthesis in plants? Objective : To investigate the relationship between different light intensity (by having the source of light at different distance to the plant discs which is at; 10cm‚ 15cm‚ 20cm‚ 25cm‚ 30cm‚ and 35cm ) and rate of photosynthesis of plant. Introduction : Photosynthesis is the process where light energy is absorbed by green plants to convert the raw materials (carbon dioxide and water) into sugars and oxygen
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epidermis of a plant that allows gases to flow in and out of a plant. (http://dictionary.reference.com/browse/stomata) Stomata open and close to allow the absorption of carbon dioxide and release of oxygen. Photosynthesis is the process by which plants convert sunlight into suitable energy. (http://www.yourdictionary.com/photosynthesis) Photosynthesis actually takes place in the stomata where carbon dioxide and oxygen enter and leave the plant. Chlorophyll is the green pigment of leaves and plants that’s
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green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product. Introduction This lab has been created in order to find what extent does distance from a light source (5cm‚ 10cm‚ and 15cm) affect the rate of photosynthesis (measured in bubbles / 3 min) in Elodea water plants. Hypothesis: More amount of time under the light will cause the plant to
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Diatom is part of the stramenopiles clade‚ which is considered to be plant-like autotrophs that are often called algae. These autotrophs are mainly photosynthetic using chlorophylls a‚ chlorophylls c and xanthophyll to undergo photosynthesis to convert energy from the sun. Some species of Diatom are colorless‚ but those that do have color get it from various pigments. Diatom have two halves of their cell wall making up what’s called a silica cell wall. The soft part of the cell wall decomposes‚ but
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how the plants use chemical cycles to feed. I explained to him how plants use photosynthesis and respiration to produce sugars for food then releasing the used energy into our atmosphere. Four main factors needed to produce these processes are sunlight‚ oxygen‚ carbon dioxide‚ and water. I would explain to Van Helmont that under a microscope plants have cells that have tiny green pigments that contain chloroplast where all of the chemical reactions are computed. In photosynthesis a plant takes
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Most of the energy we use is from the sun. This energy from the sun is called solar energy‚ plants convert it into energy‚ and animals eat plants and convert that into energy. Humans eat plants and animals and convert those into energy; humans also use solar energy to create electricity. How exactly then is the sun’s energy converted into a sustainable energy source? One process is photosynthesis. In plants‚ cells called chloroplasts collect energy from the sun and use water and carbon dioxide (photosynthesis)
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of UV-C Radiation on Brassica Rapa Plant Morphology Brett S. Borgognone Department of Biology‚ Fairfield University‚ Fairfield‚ Connecticut General Biology II Laboratory‚ Independent Plant Study of Brassica Rapa Introduction In the experiment we will be analyze the effects of UV-C radiation on Brassica Rapa. Brassica Rapa commonly known as field mustard because of its close relationship to mustard and cabbage.(1) this plant has proved to be a great plant for scientific research due to its fast
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Introduction: Hypothesis: My hypothesis for this experiment‚ the study of the effects of different wavelengths on leaf pigments‚ if chlorophyll a absorbs blue-violet light‚ chlorophyll b absorbs blue light‚ carotene absorbs blue-green light‚ and xanthophyll absorbs blue light‚ then wavelengths of greatest absorption will be 400‚ 450‚ 500‚ and 450 respectively. Independent Variable: Wavelengths Dependent Variable: optimum wavelengths of light for absorption Standard Variable: method of
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Photosynthesis is a crucial energy conversion process that occurs in the chloroplasts of eukaryotic cells. The rate of photosynthetic activity holds importance in environmental‚ horticultural and agricultural situations. (Boardman‚ N.K. 1977). Pigments in the chloroplasts thylakoid membrane absorb the electromagnetic radiation from a light source and release an electron into the electron transport chain. DCPIP’s chemical ability to favourably accept electrons‚ and undergo a colour change from
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