A Plant Mutant That Shows Normal Gravitropic Bending but Does

question 41

Multiple Choice

A plant mutant that shows normal gravitropic bending but does not store starch in its plastids would require a reevaluation of the role of ________ in gravitropism.

• A) auxin
• B) calcium
• C) statoliths
• D) light
• E) differential growth

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Definitions:

Gland Duct

A passage or tube in the body through which secretions from glands are conveyed to various organs or body surfaces.

Microvilli

Tiny, finger-like projections from the surface of some cells, increasing their surface area for absorption.

Goblet Cells

Specialized epithelial cells found in the respiratory and intestinal tracts, which secrete mucus to trap irritants and protect mucous membranes.

Columnar Epithelium

A type of epithelium that consists of single or multiple layers of column-shaped cells.