Ethylene, as an Example of a Plant Hormone, May Have

question 83

Multiple Choice

Ethylene, as an example of a plant hormone, may have multiple effects on a plant, depending on all of the following except the

• A)site of action within the plant.
• B)developmental stage of the plant.
• C)concentration of ethylene.
• D)altered chemical structure of ethylene from a gas to a liquid.
• E)readiness of cell membrane receptors for the ethylene.

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Definitions:

Drive Reduction

A theory of motivation suggesting that behavior is motivated by the desire to reduce internal drives caused by unmet physiological needs.

Food Deprivation

The state of being kept from food, leading to feelings of hunger and possibly affecting physical and mental health.

Basal Metabolic Rate

A measure of the amount of energy expended while at rest in a neutrally temperate environment; it reflects the energy required to maintain the body's basic physiological functions.

Lateral Hypothalamus

An area of the brain that plays a critical role in regulating hunger and thirst.