34 describe the carbon cycle what is the role of cell

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34. Describe the carbon cycle. What is the role of cell respiration & photosynthesis in the carbon cycle? 35. How could increasing atmospheric CO 2 concentrations affect plants? Past Free Response Questions 1971: The process of photosynthesis consists of two phases, the light reactions and the dark reactions. Discuss each of these groups of reactions and their interrelationships. 1974: The overall equation for aerobic respiration is usually written as the reverse of the overall equation for photosynthesis. What features of the biochemical pathways involved in the processes are the reverse of one another and what features are not? 1978: Explain how the molecular reactions of photosynthesis transform light energy into chemical bond energy. Include in your discussion the relationship between chloroplast structure and light and dark reactions.
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AP BIOLOGY 3 1982: Describe the similarities and differences between the biochemical pathways of aerobic respiration and photosynthesis in eukaryotic cells. Include in your discussion the major reactions, the end products, and energy transfers. 1979: In relation to plants, describe in detail one way of: a. measuring the rate of transpiration b. measuring the rate of photosynthesis c. separating pigments 1986: Describe the light reactions of photosynthesis and, for both a C3 and a C4 plant, trace the path of a carbon dioxide molecule from the point at which it enters a plant to its incorporation into a glucose molecule. Include leaf anatomy and biochemical pathways in your discussion of each type of plant. 1993: Membranes are important structural features of cells. (a) Describe how membrane structure is related to the transport of materials across a membrane. (b) Describe the role of membranes in the synthesis of ATP in either cellular respiration or photosynthesis. 1999: The rate of photosynthesis may vary with changes that occur in environmental temperature, wavelength of light, and light intensity. Using a photosynthetic organism of your choice, choose only ONE of the three variables (temperature, wavelength of light, or light intensity) and for this variable *design a scientific experiment to determine the effects of the variable on the rate of photosynthesis for the organism; *explain how you would measure the rate of photosynthesis in your experiment *describe the results you would expect. Explain why you would expect these results. 1983: Relate the structure of an angiosperm leaf to each of the following: a) Adaptations for photosynthesis and food storage b) Adaptations for food translocation and water transport c) Specialized adaptations to a desert environment 1988: Trace the pathway in a flowering plant as the water moves from the soil through the tissues of the root, stem, and leaves to the atmosphere. Explain the mechanisms involved in conducting water through these tissues. 2006 The movement of water through vascular plants is important to their survival. (a) Explain the mechanism of water movement through vascular plants during transpiration. Include a discussion of how the anatomy of vascular plants and the properties of water contribute to this process. (b)
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34 Describe the carbon cycle What is the role of cell...

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