A solution with a pH of 3 would be

ATI RN

ATI RN Test Bank

A solution with a pH of 3 would be:

A. acidic B. basic C. neutral D.

Correct Answer: A

Rationale: pH < 7 indicates an acidic solution (high H+ concentration).

Which of the following is NOT a type of lipid?

A. glycogen B. steroids C. triglycerides D. phospholipids

Correct Answer: A

Rationale: Glycogen is a carbohydrate; steroids, triglycerides, and phospholipids are lipids.

Enzymes allow reactions to occur at normal body temperatures by:

A. decreasing pH B. increasing pH C. decreasing energy of activation D. increasing energy of activation

Correct Answer: C

Rationale: Enzymes lower the activation energy, speeding reactions at physiological temperatures.

Which of the following is NOT a function of epithelium?

A. secretion B. contraction C. protection D. absorption

Correct Answer: B

Rationale: Epithelium functions in secretion, protection, and absorption; contraction is a muscle tissue role.

What special type of epithelium is found in the urinary bladder that allows distention?

A. transitional B. simple squamous C. stratified squamous D. pseudostratified columnar

Correct Answer: A

Rationale: Transitional epithelium stretches and recoils in the bladder as it fills and empties.

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