Which of the Following Has the Lowest (Most Negative)water Potential

question 25

Multiple Choice

Which of the following has the lowest (most negative) water potential?

• A) root cortical cells
• B) root xylem
• C) trunk xylem
• D) leaf cell walls
• E) leaf air spaces

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Definitions:

Ghrelin

A hormone produced by the stomach that stimulates appetite.

Intrinsic Motivation

The drive to engage in activities for their inherent satisfaction rather than for some separable consequence.

Optimal Level of Arousal

A theory suggesting that individuals have a preferred level of stimulation or arousal that they seek to maintain by increasing or decreasing stimulation.

Classical Conditioning

An educational method that happens by linking an external stimulus with a stimulus that occurs naturally.