Plant Roots That Are in a Horizontal Position Grow Down

question 21

Multiple Choice

Plant roots that are in a horizontal position grow down because:

• A)Cells on the upper side elongate more than those on the lower side.
• B)Auxins are stimulating cells on the lower side to elongate more.
• C)Auxins are being pulled to the upper side.
• D)Auxins are having no influence on this process.
• E)Statoliths are pushing auxins to the upper sidE.

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Definitions:

Dys-

A prefix in medical terms indicative of abnormal, difficult, or painful conditions.

Diagnosis

The identification of the nature of an illness or other problem by examination of the symptoms.

Nulli-

A prefix that denotes none or without, often used in medical terms to denote the absence of certain experiences or conditions.

Concentrate

To increase the strength or proportion of a substance by reducing its volume, typically by evaporation or by removing water.