Campbell Biology: Custom Edition
18th Edition
ISBN: 9781323717271
Author: Urry, Cain, Wasserman, Minorsky, Reece
Publisher: PEARSON C
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Chapter 55.2, Problem 4CC
MAKE CONNECTIONS Ø Explain how nitrogen and phosphorus, the nutrients that most often limit primary production, are necessary for the Calvin cycle to function in photosynthesis (see Concept 10.3).
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Outline the nature and sources of all needed input of photosynthesis on land and in water
Plants have evolved by developing mechanisms that promote entry of CO, into the Calvin Cycle (CC) to limit
photorespiration when environmental conditions tend to favor the latter. This is because photorespiration 1) is
energetically inefficient (consuming more ATP than the CC alone) and 2) it does not produce any sugars that
can be "fed" into cellular respiration to produce lots more ATP.
A) Under what environmental conditions does photorespiration "outcompete" that of the CC? Specifically, what
mechanism is responsible for committing the cell to photorespiration and what type of plant does not have any
"safeguards" to ensure that the CC is performed rather than photorespiration?
B) Describe the mechanisms employed by two types of plants to minimize photorespiration and ensure that the
CC is carried out even when environmental conditions are not in their favor. Be sure to identify 1) the type of
plant, 2) its natural environment and how it affects the plant's ability to perform the CC,…
How is photosynthesis similar in C4 plants and CAM plants?(A) In both cases, only photosystem I is used.(B) Both types of plants make sugar without the Calvin cycle.(C) In both cases, rubisco is not used to fix carbon initially.(D) Both types of plants make most of their sugar in the dark.
Chapter 55 Solutions
Campbell Biology: Custom Edition
Ch. 55.1 - Why is the transfer of energy in an ecosystem...Ch. 55.1 - WHAT IF? You are studying nitrogen cycling on the...Ch. 55.1 - MAKE CONNECTIONS Use the second law of...Ch. 55.2 - Why is only a small portion of the solar energy...Ch. 55.2 - How can ecologists experimentally determine the...Ch. 55.2 - Prob. 3CCCh. 55.2 - MAKE CONNECTIONS Explain how nitrogen and...Ch. 55.3 - If an insect that eats plant seeds containing 100...Ch. 55.3 - Prob. 2CCCh. 55.3 - WHAT IF? Detritivores are consumers that obtain...
Ch. 55.4 - DRAW IT For each of the four biogeochemical...Ch. 55.4 - Why does deforestation of a watershed increase the...Ch. 55.4 - WHAT IF? Why is nutrient availability in a...Ch. 55.5 - Prob. 1CCCh. 55.5 - WHAT IF? In what way is the Kissimmee River...Ch. 55 - Considering the second law of thermodynamics,...Ch. 55 - Prob. 55.2CRCh. 55 - Why would runners hove a lower production...Ch. 55 - If decomposers usually grow faster and decompose...Ch. 55 - In preparing a site for surface mining and later...Ch. 55 - Which of the following organisms is incorrectly...Ch. 55 - Prob. 2TYUCh. 55 - The discipline that applies ecological principles...Ch. 55 - Level 2: Application/Analysis 4. Nitrifying...Ch. 55 - Which of the following has the greatest effect on...Ch. 55 - Prob. 6TYUCh. 55 - Which of the following would be considered an...Ch. 55 - Prob. 8TYUCh. 55 - Level 3: Synthesis/Evaluation 9. DRAW IT (a) Draw...Ch. 55 - Prob. 10TYUCh. 55 - Prob. 11TYUCh. 55 - WRITE ABOUT A THEME: ENERGY AND MATTER...Ch. 55 - Prob. 13TYU
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- In an experiment conducted on photosynthesis-CO2 update and photosynthesis-Determining rate in white light. what gas will be produce as an product of photosynthesis and if present, what will this allow the leaf dice to do? Also, what will be the goal of photosynthesis, and how will it be different from the goal of cellular respiration?arrow_forwardOutline the nature and source of all needed inputs of photosynthesis on land and in water ?arrow_forwardDraw a diagram of the dark phase of photosynthesis. You must represent this phase in the form of a cycle indicating the parts of carboxylation, reduction, generation of hexoses and regeneration. Ribulose, CO2, rubisco, phosphoglycerate (PGA), bisphosphoglycerate, phosphoglyceraldehyde (PGAL), ATP, ADP, NADPH, NADP, kinase, fructose, and glucose should appear.arrow_forward
- Which of the following statements about the light reactions of photosynthesis are correct? 1. Absorption of light does one thing: it makes chlorophyll easier to oxidize. 2. In PSII, the rate of damage to the D1 protein can never exceeds the rate of repair. 3. Electron transport is spontaneous (exergonic) as electrons move from P680* to P700+. 4. Compared to anoxygenic photosynthesis, in oxygenic photosynthesis less light needs to be absorbed to reduce NADP+. A. 1,2 and 3 B. 1 and 3 C. 2 and 4 D. 4 only E. All of 1,2,3 and 4 are correctarrow_forward1) What type of organisms can carry out photosynthesis? 2) Why is photosynthesis important? 3) Draw a chloroplast and label the stroma, thylakoid, and granum, and lumen. 4) What is chromatography? 5) Write the equation for photosynthesis: Styles 6) Where do the light and dark reactions or Calvin Cycle occur in the plant? Accessibility: Good to go Q Search L 29 9 darrow_forwardPlease explain question 1 1.Briefly describe the process of Photosynthesis, focusing on the conversion of light energy into chemical energy and the link between the light reactions and the Calvin Cycle. How can plants survive in hot, dry climates?arrow_forward
- In what ways do the carbon fixation reactions depend on the light-dependent reactions?arrow_forwardA decrease in entropy occurs during the CO2 uptake phase of the Calvin cycle, as freely moving CO2 molecules become fixed into a carbon skeleton. How can this occur without direct participation by NADPH and/or ATP?arrow_forwardOutline the nature and sources of all needed inputs of photosynthesis on land and in water such as chlorophyll, water, and carbon dioxidearrow_forward
- . Describe how photorespiration lowers photosyntheticoutput for plants.arrow_forwardDiscuss: 1) the mechanisms that transport photosynthate from sources to sinks. Why is this important on a physiological level and a societal level?arrow_forwardChoose all that apply: The final electron acceptor(s) associated with photosystem II is/are: NADP+ 02 Photosystem I ATParrow_forward
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