After Some Time,the Tip of a Plant That Has Been

question 52

Multiple Choice

After some time,the tip of a plant that has been forced into a horizontal position grows upward.This phenomenon is related to

• A)calcium release from the endoplasmic reticulum of shaded cells.
• B)whether the plant is in the northern or southern hemisphere.
• C)auxin production in cells receiving red light.
• D)auxin movement toward the lower side of the stem.

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