Biology: Life on Earth with Physiology Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
11th Edition
ISBN: 9780133910605
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 7, Problem 5RQ
Summary Introduction
To explain:
The reason of photorespiration to occur and also describe two mechanisms that some groups of plants have evolved to reduce photorespiration.
Concept introduction:
Photorespiration is also known as the oxidative photosynthetic carbon cycle. Photorespiration describes the process of plant
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Explain the chemical pathway used to fix carbon dioxide in C3 plants in preparation for the Calvin cycle. Explain the chemical pathway used to fix carbon dioxide in C4 plants in preparation for the Calvin cycle. Explain the leaf anatomy in C3 plants and how the structure fits the function of carbon fixation. Explain the leaf anatomy in C4 plants and how the structure fits the function of carbon fixation.
In hot, dry climates, plants have evolved mechanisms to avoid photorespiration. Which of the following is FALSE
Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer.
a
b
с
d
e
C3 plants have no mechanism to avoid photorespiration
C4 plants reduce photorespiration by separating the light reaction in the mesophyll cells from the light-
independent reaction in the bundle-sheath cells
CAM plants minimize photorespiration by collecting and storing CO2 at night and keeping their stomata
closed during the day
C4 plants include corn, sugarcane, and many grasses
CAM plants can undergo photophosphorylation in the absence of sunlight
Open in Readir
In hot, dry climates, plants have evolved mechanisms to avoid photorespiration. Which of the following is FALSE
Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer.
a
b
с
d
C3 plants have no mechanism to avoid photorespiration
C4 plants reduce photorespiration by separating the light reaction in the mesophyll cells from the light-
independent reaction in the bundle-sheath cells
CAM plants minimize photorespiration by collecting and storing CO2 at night and keeping their stomata
closed during the day
C4 plants include corn, sugarcane, and many grasses
CAM plants can undergo photophosphorylation in the absence of sunlight
7
Open in Readin
Chapter 7 Solutions
Biology: Life on Earth with Physiology Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
Ch. 7.1 - What chemical reactions allow plants to capture...Ch. 7.1 - explain why photosynthesis is important?Ch. 7.1 - diagram the structure of leaves and chloroplasts...Ch. 7.1 - write out and explain the basic equation for...Ch. 7.1 - summarize the main events of the light reactions...Ch. 7.2 - What reactions allow plants to store the...Ch. 7.2 - list the light capturing molecules in chloroplasts...Ch. 7.2 - Prob. 1HYEWCh. 7.2 - You continuously monitor the photosynthetic oxygen...Ch. 7.2 - diagram and describe the molecules within the...
Ch. 7.2 - Prob. 3CYLCh. 7.3 - What global policy changes and what individual...Ch. 7.3 - describe the function of the Calvin cycle and...Ch. 7.3 - Why do C3 plants have an advantage over C4 plants...Ch. 7.3 - list the three stages of the Calvin cycle,...Ch. 7.3 - FIGURE E7-3 Corn prices have increased...Ch. 7.3 - describe the fate of the simple sugar G3P...Ch. 7 - Suppose an experiment is performed in which plant...Ch. 7 - Plant leaves contain pores called __________ that...Ch. 7 - Which of the following is True? a. Photosynthesis...Ch. 7 - Explain what would happen to life if...Ch. 7 - Prob. 2ACCh. 7 - Chlorophyll a captures wavelengths of light that...Ch. 7 - The Calvin cycle a. can only occur when light is...Ch. 7 - Prob. 2RQCh. 7 - Assume you want to add an accessory pigment to the...Ch. 7 - Prob. 3FIBCh. 7 - Prob. 3MCCh. 7 - Draw a simplified diagram of a leaf cross-section...Ch. 7 - Prob. 4FIBCh. 7 - Prob. 4MCCh. 7 - Draw a simplified diagram of a chloroplast and...Ch. 7 - Prob. 5FIBCh. 7 - Which of the following is False? a. Photosystem II...Ch. 7 - Prob. 5RQCh. 7 - Light reactions generate the energy-carrier...Ch. 7 - Prob. 6RQCh. 7 - Prob. 7RQ
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- Discuss other morphological differences between sunny and shady set-ups of mung bean in relation to phototropic response of plants. Characteristics sunny shaded Leaf color Lime Green Pale Green Direction of Growth Grows upward towards the direction of sunlight Oriented in the direction of the light but growth is bent downwardarrow_forwardWhat is the relationship between light intensity and the rate of photosynthesis. Make a prediction about this relationship, and identify both independent and dependent variables in the prediction. What will be a suitable hypothesis predict answers for the following: A) what is the rate of germinating peas versus non-germinating peas. B) what is the effect of temperature on germinating peas?arrow_forwardDescribe the relationship between transpiration rate and light intensity in basil Ocimum basilicum in terms of photosynthesis, optimal range, and stomata.arrow_forward
- Describe the process of development of root nodules in leguminous plant. Name the oxygen scavenger molecule present in root nodules?arrow_forwardWhat is the benefit of Photorespiration in plants and what problem does it pose in many plants?arrow_forwardDescribe the relationship between transpiration rate and temperature in basil Ocimum basilicum in terms of photosynthesis, optimal range, and stomata.arrow_forward
- discussmorphological differences between sunny and shady setups of mung beans in relation to phototropic response of plantsarrow_forwardB) 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, and 3) how it has adapted itself to minimize photorespiration. 4arrow_forwardList the three events that occur during the process of photosynthesis. Explain the role of stomata in this process.arrow_forward
- A) The concentration of CO2 is lower inside a plant cell than in the atmosphere (outside the cell). In your own words, describe how the CO2 levels are kept low inside the plant cell and explain why this is necessary. Assume stomata are open. B) Regarding the situation presented in Part A and assuming that the stomata of the plant leaves are closed, would this favour the induction of photorespiration in a C3 plant? Explain. Make reference to relevant molecule or molecules as needed. Please clearly label your responses as A and Barrow_forwardName the predominant chlorophyll molecules in green plants.arrow_forwardUnder 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?arrow_forward
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