Which of the Following Statements Concerning Photorespiration Is Not True

question 49

Multiple Choice

Which of the following statements concerning photorespiration is not true?

• A) High oxygen concentration and high temperatures promote photorespiration.
• B) Photorespiration is a serious problem of C4 plants in hot dry environments.
• C) When the rates of carbon dioxide release and fixation are equal, the carbon dioxide compensation point has been reached.
• D) Photorespiration is depressed by carbon dioxide concentrations above 0.2%.
• E) The lower the value of the carbon dioxide compensation point the less photorespiration takes place.

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Definitions:

Endotherms

Organisms that maintain a constant body temperature through metabolic processes, despite external environmental changes.

Homeostatic Mechanisms

The regulatory mechanisms that maintain homeostasis.

Energy Expenditure

The total amount of energy used by an organism for basic bodily functions and physical activity.

Metabolic Processes

The chemical reactions that occur within a living organism to maintain life.