BIOL:CONCEPT+INVEST.ETEXT
5th Edition
ISBN: 9781264154173
Author: Hoefnagels
Publisher: MCG
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Chapter 5.6, Problem 4MC
Summary Introduction
To describe:
The minimization of photorespiration by
Concept introduction:
The
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Explain how C4 and CAM plants minimize photorespiration.
Distinguish between C4 plants and CAM plants in terms of carbon fixation.*
Draw a graph of the functional responses of the photosynthetic rate of a C4 and a CAM plant (2 lines) over the range of PAR.
Chapter 5 Solutions
BIOL:CONCEPT+INVEST.ETEXT
Ch. 5.1 - Prob. 1MCCh. 5.1 - Prob. 2MCCh. 5.1 - Prob. 3MCCh. 5.1 - Prob. 4MCCh. 5.1 - How did the origin of photosynthesis alter Earths...Ch. 5.2 - Prob. 1MCCh. 5.2 - Prob. 2MCCh. 5.2 - Prob. 3MCCh. 5.2 - How does the reaction center chlorophyll interact...Ch. 5.3 - Prob. 1MC
Ch. 5.3 - Prob. 2MCCh. 5.4 - Prob. 1MCCh. 5.4 - Prob. 2MCCh. 5.4 - Prob. 3MCCh. 5.4 - Prob. 4MCCh. 5.5 - What is the relationship between the light...Ch. 5.5 - Prob. 2MCCh. 5.6 - Why is the Calvin cycle also called the C3...Ch. 5.6 - Prob. 2MCCh. 5.6 - What conditions maximize photorespiration?Ch. 5.6 - Prob. 4MCCh. 5.6 - Prob. 5MCCh. 5.7 - Prob. 1MCCh. 5.7 - Prob. 2MCCh. 5 - Where does the energy come from to drive...Ch. 5 - Prob. 2MCQCh. 5 - Prob. 3MCQCh. 5 - The evolution of photosynthesis resulted in a. an...Ch. 5 - Prob. 5MCQCh. 5 - Prob. 6MCQCh. 5 - Prob. 7MCQCh. 5 - Imagine that multiple simultaneous volcanic...Ch. 5 - Prob. 2WIOCh. 5 - Prob. 3WIOCh. 5 - Would a plant grow belier in a room painted blue...Ch. 5 - Determine whether each of the following molecules...Ch. 5 - Over the past decades, the CO2 concentration in...Ch. 5 - How does photosynthesis help compensate for...Ch. 5 - How is the CAM pathway adaptive in a desert...Ch. 5 - Explain how C4 photosynthesis is based on a...Ch. 5 - Prob. 1PITCh. 5 - 2. How would you incorporate the Calvin cycle,...Ch. 5 - Prob. 3PITCh. 5 - Prob. 4PIT
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- 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_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_forwardDespite CAM photosynthesis having a comparatively higher water use efficiency relative to C3 and C4 plants, its distribution is restricted primarily to desert succulents. In terms of water use efficiency, explain why CAM photosynthesis has not spread more widely.arrow_forward
- How do C4 plants minimize photorespiration? Multiple Choice Stomata are only opened at night, storing carbon dioxide in the stroma. During the day, the carbon dioxide is released for photosynthesis. Carbon dioxide is fixed twice in different cells. The Calvin cycle occurs in the bundle sheath cells where oxygen concentrations are lower. Carbon dioxide is fixed twice in different cells so that carbon dioxide does not come into contact with rubisco. Stomata are only opened at night, storing oxygen in malate. During the day, the oxygen is released for photosynthesis. Stomata are only opened at night, storing carbon dioxide in malate. During the day, the carbon dioxide is released for photosynthesis.arrow_forwarda) What makes photorespiration disadvantageous regarding crop yields?b) Describe how the AP3 pathway bypasses photorespirationarrow_forwardExplain the similarities and differences between phototrophy and chemotrophy.arrow_forward
- Describe the role of ADPH in photosyntesisarrow_forwardExplain the expected relationship between the absorption spectra of plant pigments and O2 production, electron transport, and CO2 fixation under various wavelengths of light.arrow_forwardPfr, the active state of _______________, forms when red light is absorbed. (a) photosystem I (b) phytochrome (c) far-red light (d) phototropin (e) cryptochromearrow_forward
- Chlorophyll a and chlorophyll b both play roles in photosynthesis. Using no more than one sentence to respond for each segment, please: 1) Outline the roles/functions that chlorophyll b play that are different from those for chlorophyll a 2) Outline the roles/functions that chlorophyll a play that are different from those for chlorophyll barrow_forward. Describe how photorespiration lowers photosyntheticoutput for plants.arrow_forwardWhich of the following is in the correct order from smallest to largest? Thylakoid disk, Photosystem I, mesophyll cell, chloroplast, leaf Photosystem II, Chloroplast, thylakoid disk, mesophyll cell, leaf Thylakoid disk, Photosystem II, chloroplast, mesophyll cell, leaf Photosystem II, Thylakoid disk, chloroplast, mesophyll cell, leafarrow_forward
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