What Is the Function of the Casparian Strip in the Root

question 47

Multiple Choice

What is the function of the Casparian strip in the root?

• A)It protects the surface of the root but allows water to be absorbed.
• B)It allows for horizontal transport of water and nutrients.
• C)It is the portion of the root that contains numerous root hairs.
• D)It is an internal water-proofed layer that prevents water and minerals from moving through intercellular spaces on their way to the vascular tissue.
• E)It seals the surface of roots that have been damaged.

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Definitions:

Escape Learning

A form of learning in which the subject acquires a response that results in the termination of an aversive stimulus.

Punishment

A form of behavioral control involving the application of an unpleasant stimulus or removal of a pleasant stimulus in response to undesired behavior.

Positive Reinforcement

A technique in behavior modification that involves rewarding desirable behaviors, thereby increasing the likelihood of their recurrence.

Variable Interval Schedule

A reinforcement schedule where rewards are provided after an unpredictable time interval, leading to more consistent behavior.