Answered: Explain CAM photosynthesis and the…

Science

Biochemistry

Explain CAM photosynthesis and the circumstances under which it may be used by plants.

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter38: Plant Developmental Responses To External And Internal Signals

Section: Chapter Questions

Problem 8TYU: Pfr, the active state of _______________, forms when red light is absorbed. (a) photosystem I (b)...

See similar textbooks

Related questions

Q: Which of the following is the correct sequence for the movement of electrons during the…

A: During the light-dependent reactions, light energy is absorbed by photosystems I and II (PSI and…

Q: Select four factors that affect the rate of photosynthesis A) Wind Light Quality B) Oxygen Light…

A: This topic refers to the process of photosynthesis, which is carried out by some bacteria, algae,…

Q: Plants are highly dependent upon the resources of their enviroment. Explain how the lack of water…

A: In photosynthesis, two reaction has been shown light dependent reaction and light independent…

Q: What negative impacts will occur if transpiration in a plant is slowed down?

A: Plants are autotrophs that can synthesize their food. They use light, water, and carbon dioxide for…

Q: What is the main goal of the Light Dependent Reactions of photosynthesis? A) To break down gluoog

A: Answer - Option B - To convert light energy into chemical energy

Q: Discuss: 1) the mechanisms that transport photosynthate from sources to sinks. Why is this…

A: Photosynthesis is a biological process that occurs in plants, algae, and some bacteria through which…

Q: Why is a hypotonic buffer used for the resuspension? 1.DCPIP passes easily across the intact…

A: The lysis of adherent and suspended cells is facilitated by the hypotonic buffer. The presence of…

Q: Identify major pathways where moleculescan be redirected or converted into usefulcell products.

A: A cell is the fundamental unit of life. All living organisms are made up of one or many cells. Each…

Q: 1. Can plants live off their photosynthetic products alone? Explain.

A: Photosynthesis is a mechanism by which plants and other organisms transform light energy into…

Question

Explain CAM photosynthesis and the circumstances under which it may be used by plants.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1: Need for different modes of photosynthesis

VIEW

Step 2: CAM photosynthesis and the circumstance under which it is used by plants

VIEW

Solution

VIEW

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Similar questions

Where in plant cells does the Calvin cycle take place? a. thylakoid membrane b. thylakoid space c. stroma d. granum
What is the significance that the combined absorption spectra of chlorophylls a and b roughly match the action spectrum of photosynthesis? Would photosynthesis be more efficient if their individual absorption spectra coincided exactly?
Where is chlorophyll located in the chloroplast? (a) thylakoid membranes (b) stroma (c) matrix (d) thylakoid lumen (e) between the inner and outer membranes
Melvin Calvin and Andrew Benson determined the steps in the light-independent reactions of photosynthesis by exposing the green alga Chlorella to CO2 labeled with the radioisotope carbon 14. By looking at which compounds the C14 ended up in, they were able to identify all intermediates in this cyclic pathway. Why did they predict correctly that the same set of intermediates would be formed in the light reaction in land plants?
Photosynthesis directly opposes respiration in determining how plants influence atmospheric CO2 concentrations. When a leaf is in the light, both photosynthesis and respiration are occurring simultaneously. The data in the Table were collected from the leaf of a sagebrush plant that was enclosed in a chamber that measures the rate of CO2 exchange. The same leaf was used to collect the data in Interpret the Data in Chapter 7. Respiration is shown as a negative and photosynthesis as a positive rate of CO2 exchange. The net photosynthesis rate is the amount of CO2 (in micromoles per square meter per second) assimilated by the leaf while respiration is occurring; a positive value indicates more photosynthesis is occurring than respiration. The light exposed to the leaf is quantified as the number of photons in the 400 to 700 nm wavelength, the photosynthetic photon flux density (PPFD); 2,000 mol/m2/s is equivalent to the amount of light occurring at midday in full Sun. Observation Photosynthetic Photon Flux Density (PPFD) (mol/m2/s) Net Photosynthesis (mol/m2/s) 1 2,000 9.1 2 1,500 8.4 3 1,250 8.2 4 1,000 7.4 5 750 6.3 6 500 4.8 7 250 2.2 8 0 -2.0 Why is net photosynthesis negative when PPFD is zero? Looking at the respiration data from Interpret the Data in Chapter 7, at what temperature do you think these data were collected? Source: Data based on unpublished research by Brent Ewers, University of Wyoming.
In what ways do the carbon fixation reactions depend on the light-dependent reactions?
There is a trade-off between photosynthesis and transpiration in leaves because (a) numerous stomatal pores provide both gas exchange for photosynthesis and openings through which water vapor escapes (b) a waxy layer, the cuticle, reduces water loss (c) blue light triggers an influx of potassium ions (K+) into the guard cells (d) leaves of deciduous plants abscise as winter approaches in temperate climates (e) stomata are closed at night, although water continues to move into the roots by osmosis
Figure 8.18 Which of the following statements is true? In photosynthesis, oxygen, carbon dioxide, ATP, and NADPH are reactants. G3P and water are products. In photosynthesis, chlorophyll, water, and carbon dioxide are reactants. G3P and oxygen are products. In photosynthesis, water, carbon dioxide, ATP, and NADPH are reactants. RuBP and oxygen are products. In photosynthesis, water and carbon dioxide are reactants. G3P and oxygen are products.
Explain the reciprocal nature of the net chemical reactions for photosynthesis and respiration.
An indoor gardener leaving for vacation completely wraps a potted plant with clear plastic. Temperature and light are left at low intensities. The effect of this strategy is to: a. halt photosynthesis. b. reduce transpiration. c. cause guard cells to shrink and stomata to open. d. destroy cohesion of water molecules in the xylem. e. increase evaporation from leaf mesophyll cells.
Which of the following is a correct step in the light-dependent reactions of the Z system? a. Light is absorbed at P700, and electrons flow through a pathway to NADP+, the final acceptor of the linear pathway. b. Electrons flow from photosystem II to water. c. NADP+ is oxidized to NADPH as it accepts electrons. d. Water is degraded to activate P680. e. Electrons pass through a thylakoid membrane to create energy to pump H+ through the cytochrome complex.
Describe an example of a plant with leaves that are adapted to cold temperatures.