Ethylene Differs from Other Plant Hormones in That

question 11

Multiple Choice

Ethylene differs from other plant hormones in that

• A)it is produced in very small amounts.
• B)it is a gas.
• C)it has multiple effects.
• D)it is only produced in seedlings.
• E)it is transported in the xylem and phloem.

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Definitions:

Photoperiodic Response

The biological reaction of organisms to the length of day or night, affecting behaviors such as flowering in plants and mating in animals.

Vernalization

Stimulation of flowering in spring by long exposure to low temperature in winter.

Statoliths

Small granules, often made of calcium carbonate, found within certain cells associated with the detection of gravitational orientation in plants and some invertebrate animals.

Gravity-sensing Cells

Specialized cells in organisms that detect and respond to gravity, guiding growth and movement direction.