Guard Cells Are the Only Cells in the Epidermis That

question 39

Multiple Choice

Guard cells are the only cells in the epidermis that contain chloroplasts and can undergo photosynthesis. This is important because

• A) chloroplasts sense when light is available so that guard cells will open.
• B) photosynthesis provides the energy necessary for contractile proteins to flex and open the guard cells.
• C) guard cells will produce the O₂ necessary to power active transport.
• D) ATP is required to power proton pumps in the guard cell membranes.
• E) chloroplasts sense when light is available so that guard cells will open and guard cells will produce the O₂ necessary to power active transport.

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Definitions:

Reliability

The likelihood that a system or component will perform its required functions for a specified period under stated conditions.

Components

Individual parts or elements that combine or work together within a larger product, system, or mechanism.

Series

A sequence of numbers, objects, or events arranged in a specific order and often following a specific rule.

Parallel

Concurrent or simultaneous; in computing, refers to processes that are executed at the same time.