A solution with a pH of 11 would be

ATI RN

ATI RN Test Bank

A. acidic B. basic C. neutral D.

Correct Answer: B

Rationale: pH > 7 indicates a basic solution (high OH- concentration).

Identify the main component of cell membranes.

A. cholesterol B. fatty acids C. phospholipids D. polysaccharides

Correct Answer: C

Rationale: Phospholipids form the bilayer structure of cell membranes.

A reaction that joins smaller molecules or elements to form a larger, more complex product is a reaction.

A. degradation B. replacement C. synthesis D. decomposition

Correct Answer: C

Rationale: Synthesis reactions build larger molecules from smaller units.

Which of the following is NOT a characteristic of epithelial tissue?

A. binds and supports body parts B. has cells that readily divide C. has a basement membrane and a free surface D. has tightly packed cells

Correct Answer: A

Rationale: Binding and support are connective tissue traits; epithelium has tightly packed, dividing cells on a basement membrane.

Identify the function of goblet cells.

A. Aid in absorption B. Move materials past cells C. Provides a waterproof barrier D. Secrete mucous

Correct Answer: D

Rationale: Goblet cells secrete mucus to protect and lubricate epithelial surfaces.

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