Which Statement Is Accurate About How C₄ Plants Are Able

question 13

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 oxygen 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.

---

Definitions:

Securities

Financial instruments that represent an ownership position in a publicly-traded corporation (stock), a creditor relationship with a governmental body or a corporation (bond), or rights to ownership as represented by an option.

CAPM

Capital Asset Pricing Model, a formula used to determine the expected return on an investment based on its risk relative to the market.

APT Model

Arbitrage Pricing Theory Model; a financial theory that estimates the returns on assets based on their exposure to various risk factors.

One Factor

In finance, refers to models or analyses that consider only a single variable or risk factor in their calculations.