Which Statement Is Accurate About How C₄ Plants Are Able

question 39

Multiple Choice

Which statement is accurate about how C₄ plants are able to survive hot, dry spells during the growing season?

• A) When the stomata close during heat stress, RuBP carboxylase is not exposed to the increase in oxygen concentration experienced in the leaf. This allows the plant to avoid photorespiration.
• B) When the stomata close during heat stress, RuBP carboxylase is exposed to the increase in carbon dioxide concentration experienced in the leaf. This allows the plant to avoid photorespiration.
• C) When the stomata open during heat stress, RuBP carboxylase is not exposed to the increase in oxygen concentration experienced in the leaf. This allows the plant to avoid photorespiration.
• D) When the stomata close during heat stress, RuBP carboxylase is exposed to the increase in oxygen concentration experienced in the leaf. This allows the plant to undergo photorespiration.
• E) When the stomata open during heat stress, RuBP carboxylase is not exposed to the increase in oxygen concentration experienced in the leaf. This allows the plant to undergo photorespiration.

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Definitions:

Efficiency Wage

A wage rate set above the market equilibrium to increase productivity and efficiency among workers by attracting and retaining higher-quality employees.

Above-Equilibrium Wage

A situation where wages for a job exceed the market equilibrium, often due to minimum wage laws, unions, or other factors, potentially causing a surplus of applicants.

Talented Pool

A collective term referring to a group of individuals who possess high levels of skill, expertise, or ability in specific areas.

Efficiency Wages

Wages intentionally set above the equilibrium level by employers to increase productivity, discourage turnover, and attract better talent.