Iran. J. Environ. Health. Sci. Eng.‚ 2010‚ Vol. 7‚ No. 2‚ pp. 299-306 GROWTH‚ PHOTOSYNTHESIS AND RESPIRATORY RESPONSE TO COPPER IN LEMNA MINOR: A POTENTIAL USE OF DUCKWEED IN BIOMONITORING Downloaded from http://journals.tums.ac.ir/ on Thursday‚ February 23‚ 2012 * N. Khellaf‚ M. Zerdaoui Laboratory of Environmental Engineering‚ Faculty of Engineering‚ Badji Mokhtar University‚ Annaba‚ Algeria Received 3 February 2010; revised 21 Jully 2010; accepted 20 August 2010 ABSTRACT Aquatic macrophytes
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producer plant. The alternative hypothesis was that the rate of photosynthesis increases as the distance of the light decreases. This is because light energy can excites chlorophyll molecules more clorophyll mulcoulse as the distance of the light decreases. Photosynthesis is a process in which the energy of light is used to produce organic molecules. In this process Oxygen is released; therefore the rate of photosynthesis can be calculated by measuring the rate of oxygen production
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PHOTOSYNTHESIS LAB Alyssa Wright VARIABLE: LIGHT INTENSITY AIM: to investigate the effect of light intensity (lux) on the amount of oxygen produced (number of bubbles) HYPOTHESIS: I predict that the rate of oxygen produced increases‚ as the light intensity increases‚ but only to a point. I predict this will happen because the plant will have enough carbon dioxide and water to keep up with the amount of light that there is. When there is less light intensity‚ photosynthesis will happen
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plants‚ as rubisco is reduced inefficiently in C3 plants because of higher atmospheric CO2 concentrations. 3.5 PHOTOSYNTHESIS AND THE ENVIRONMENT Section 3.5 Questions (Page 178) Understanding Concepts 1. 2. Irradiance limits the overall rate of photosynthesis under low light conditions. As irradiance increases‚ photosynthesis begins. C4 plants generally exhibit higher rates of photosynthesis when compared with C3 plants because of the fact that although photorespiration rates increase with increasing
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and chlorophyll. This process of plants making their own food with sunlight and chlorophyll is called photosynthesis. The photosynthesis process involves sunlight‚ sugar‚ and chlorophyll. Chlorophyll is called a photoreceptor. It is found in the chloroplasts of a plant cell that is within green plants‚ and is what gives green plants their green color. Chlorophyll has a special role in photosynthesis. Chlorophyll molecules absorb light energy. Chlorophyll is a complex molecule‚ which has lead to a
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Review Questions 1. The organic molecule produced directly by photosynthesis is b) sugar 2. The photosynthetic process removes E) carbon dioxide from the environment. 3. The process of splitting water to release hydrogen and electrons occurs during the _____ process. a) light dependent 4. The process of fixing carbon dioxide into carbohydrates occurs in the ____ process. b) light independent. 5. Carbon dioxide enters the leaf through b) stomata. 6. The cellular transport process by which
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• 1. The organic molecule produced directly by photosynthesis is sugar: a) lipids; b) sugar; c) amino acids; d) DNA • 2. The photosynthetic process removes carbon dioxide from the environment. a) water; b) sugar; c) oxygen; d) chlorophyll; e) carbon dioxide • 3. The process of splitting water to release hydrogens and electrons occurs during the light dependent process. a) light dependent; b) light independent; c) carbon fixation; d) carbon photophosphorylation; e) glycolysis • 4. The process
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and differentiate: hypothesis‚ fact‚ theory‚ law In which part of a cell does the Calvin Cycle take place? What is the main organelle of cellular respiration? What is Bio-luminescence? What organelle traps light energy for use in photosynthesis? What is the most common pigment contained in a photo-system? Why can’t roots photosynthesize? Name a cellular processes that requires oxygen? Where is the energy stored in a molecule of ATP? How do humans store excess energy
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BIO 101 Lecture Notes for Respiration‚ Fermentation‚ and Photosynthesis Respiration During aerobic respiration‚ glucose is completely oxidized (all H’s removed) leaving CO2 as an endproduct. The H’s are taken by coenzymes (NAD and FAD) to the electron transport chain. There the energy is drained from the hydrogen electrons and the energy is used to make ATP. The H’s are ultimately accepted by O2 to make H2O as an endproduct. Respiration occurs in three major stages: 1) Glycolysis
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Homework Title: Photosynthesis and Respiration 1) Define these terms and arrange them from smallest to largest: Ch 5 WIO #3 • Thylakoid membrane Answer: Thylakoid membrane is a compartment in a plant cell that has light pigment that carry out the photosynthesis process. • Chloroplast Answer: Chloroplast is a type of organelle found in plants and algae that carry our photosynthesis. • Reaction center Answer: Reaction center is where chlorophyll a molecule and other
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