Cells Elongate in Response to Auxin

question 28

Multiple Choice

Cells elongate in response to auxin. All of the following are part of the acid growth hypothesis except

• A)Auxin stimulates proton pumps in cell membranes.
• B)Lowered pH results in the breakage of cross-links between cellulose microfibrils.
• C)The wall fabric becomes looser (more plastic).
• D)Auxin-activated proton pumps stimulate cell division in meristems.
• E)The turgor pressure of the cell exceeds the restraining pressure of the loosened cell wall, and the cell takes up water and elongates.

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Definitions:

Purity

The condition or quality of being clean, free from contaminants, or morally upright.

Timbre

The quality of a sound that distinguishes it from other sounds of the same pitch and volume.

Musical Note

A symbol representing a specific pitch and duration in music, essential for musical notation and composition.

Inner Ear

The innermost part of the ear, containing structures responsible for hearing (cochlea) and balance (vestibular system).