BIOLOGY
5th Edition
ISBN: 9781265202859
Author: BROOKER
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Chapter 8, Problem 10TY
Summary Introduction
Introduction: Certain plants that are confined to hot and dry environments have developed the ability to separate the reactions taking place in the Calvin cycle and the process of CO2 fixation. Stomata of these plants are usually open during the night time. This leads to the entry of CO2 in the cells of these plants.
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The medical value of plants is due to chemicals found in
a. leaves
b. tree bark
c. flwers
d. seeds
e. all of the above
Which of the following descriptions about C4 and CAM plants is not correct?
Select one:
a. CAM plants use CO2 released from organic compounds during the day
b. C4 and CAM plants both close stomata during the day in hot and dry climates.
c. in C4 plants, PEP carboxylase present in bundle-sheath cells incorporate CO2 into C4 compounds
d. CAM plants fix CO2 at night
e. C4 plants use PEP carboxylase to fix CO2 even when CO2 concentrations are low
Photorespiration becomes more likely when a. CO2 concentrations are high in leaf cells. b. stomata remain closed in C3 plants. c. glucose concentrations are low in leaf cells. d. ATP binds to rubisco.
Chapter 8 Solutions
BIOLOGY
Ch. 8.1 - Core Skill: Modeling The goal of this modeling...Ch. 8.1 - Prob. 2CSCh. 8.1 - Can the Calvin cycle occur in the dark?Ch. 8.2 - Prob. 1CCCh. 8.2 - Prob. 2CCCh. 8.2 - Prob. 3CCCh. 8.2 - Prob. 4CCCh. 8.2 - Why does cyclic photophosphorylation provide an...Ch. 8.2 - Prob. 6CCCh. 8.3 - Prob. 1CC
Ch. 8.4 - Prob. 1CCCh. 8.4 - Prob. 1EQCh. 8.4 - Prob. 2EQCh. 8.4 - Prob. 3EQCh. 8.5 - Prob. 1CCCh. 8.5 - Prob. 2CCCh. 8 - The water necessary for photosynthesis a. is split...Ch. 8 - In PSII, P68o differs from the pigment molecules...Ch. 8 - Prob. 3TYCh. 8 - Prob. 4TYCh. 8 - Prob. 5TYCh. 8 - Prob. 6TYCh. 8 - Prob. 7TYCh. 8 - Prob. 8TYCh. 8 - Prob. 9TYCh. 8 - Prob. 10TYCh. 8 - Prob. 1CQCh. 8 - Prob. 2CQCh. 8 - Prob. 3CQCh. 8 - Discuss the advantages and disadvantages of being...Ch. 8 - Biotechnologists are trying to genetically modify...
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- C4 plants and CAM plants are both different from C3 plants. Only CAM plants a. require 2 cells to fix carbon. b. C. d. e. omit the Calvin cycle. use malate to store carbon. have no stomata. capture CO2 at night. d Carrow_forwardWhich of the following plant structures is necessary for transpiration to occur? a. Sieve tubes c. Fruits b. Leaves d. Rootsarrow_forward. Pathogens can spread from plant to plant via Select one: a. phloem b. plasmodesmota c. jasmonate d. aphids e. stomataarrow_forward
- Plants that fix CO 2 into organic acids at night when the stomata are open and carry out the Calvin cycle during the day when the stomata are closed are called O A. C 3 plants. B. C 4 plants. C. CAM plants. D. B and C only. E. A, B, and Carrow_forwardIn a growing condition with limited air supply, which of the following processes will be directly affected? a. Photosynthesis b. Translocation c. Respiration d. A and Carrow_forwardWhich of the following statements is/are FALSE for CAM plants? a.The dark reaction uses less ATP and NADPH than other plants. b.Succulents and tropical plants growing under semi-arid condition. c.C4 pathway occurs at night and C3 pathway occurs at daytime. d.Scotoactive stomata are open during daytime but close at nighttime.arrow_forward
- To which of the two lighting conditions would you expose seedlings if you wanted to maximize the rate of photosynthesis in the plants as well as minimizing your costs for electricity to light the plants in the greenhouse? A. Low light only. B. Moderate light only. C. Low light for the first 12 hours and then moderate light afterwards. D. Moderate light for the first 12 hours and then low light afterwards.arrow_forwardC4and CAM plants are best suited for:a.hot and moist environments.b.cool and moist environments.c.hot and dry environments.d.cool and dry environments.e.environments with moderate temperatures and moisture levels.arrow_forward(a) Younger plant parts/materials decompose faster compared to older more lignified plant parts/materials; (b) Materials with narrow C:N ratio will decompose more easily compared to materials with wider C:N ratio. A. If statement A is true B. if statement B is true C. both statement A and B are true D. statement A nor B are truearrow_forward
- A. Most varieties of Sedum are not native plants in Albany or New York City. Why may it be dangerous to introduce a new species to an established ecosystem?B. How does a green roof reduces the amount of carbon dioxide in the atmosphere?C. Why is it important to reduce the amount of carbon dioxide in the atmosphere?D. State one disadvantage of a green roof. E. What are other ways the owners or architects of a building can reduce its carbon footprint?arrow_forward. Which of the following is not a typical plant response to oxygen deficit due to flooding? * A. Aerenchyma formation B. Hyponastic growth of submerged leaves C. Stomatal closure D. Induction of anaerobic stress proteinsarrow_forwardPhotosynthesis in some of the crops is efficient at this range of temperature a. 20°C - 30°C b. 25°C - 30°C c. 20°C - 25°C d. 20°C - 23°Carrow_forward
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