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ATI LPN · Anatomy and Physiology · Cells and Tissues Multiple Choice Questions

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

A fall in plasma sodium concentration

A. May result from excessive production of ADH

B. Decreases intracellular fluid volume.

C. May occur in people engaged in hard physical work in humid tropical climates.

D. Reduces plasma osmolality.

Expert Explanatory Rationale

Correct Answer: Reduces plasma osmolality.

Question 2 of 5

Which of the following is NOT a type of neuron?

A. Sensory neuron

B. Motor neuron

C. Epithelial neuron

D. Interneuron

Expert Explanatory Rationale

Correct Answer: Epithelial neuron

Question 3 of 5

The space that a chondrocyte or osteocyte lives in is called a

A. lamella

B. lacuna

C. matrix

D. canaliculis

Expert Explanatory Rationale

Correct Answer: lacuna

Question 4 of 5

Prokaryotic genetic system has

A. DNA but no histones

B. Both DNA and histones

C. Neither DNA nor histones

D. Either DNA or histones

Expert Explanatory Rationale

Correct Answer: DNA but no histones

Question 5 of 5

What is the name of the mechanism that ensures that there is a higher concentration of sodium ions in the extracellular fluid than in the intracellular fluid?

A. Facilitated diffusion

B. The sodium-potassium pump

C. Secondary active transport

D. Osmosis

Expert Explanatory Rationale

Correct Answer: The sodium-potassium pump

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