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ATI RN · ATI Fundamentals · Chapter 14 Nutrition and Fluid Balance

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

The amount of sodium reabsorbed by the kidneys depends on the baroreceptor reflex and adjustments to glomerular

A. TRUE

B. FALSE

C. NA

D. NA

Correct Answer: FALSE

Question 2 of 5

The unequal distribution of positively and negatively charged solutes across the plasma membrane is known as what?

A. disequilibrium constant

B. charge separation

C. membrane potential

D. chemical disequilibrium

Correct Answer: membrane potential

Question 3 of 5

The largest percentage of water is located in which "compartment"?

A. synovial fluid

B. plasma

C. interstitial fluid

D. intracellular fluid

Correct Answer: intracellular fluid

Question 4 of 5

Renal tubule cells in the kidney medulla are constantly exposed to high extracellular osmolarity. How do they maintain normal cell volume?

A. They synthesize organic solutes as needed to match the osmolarity

B. They synthesize water molecules through increased metabolism to offset volume loss

C. They maintain a water-impermeable membrane

D. They add or remove aquaporins as needed

Correct Answer: They synthesize organic solutes as needed to match the osmolarity

Question 5 of 5

Which of these is a potent urinary buffer?

A. phosphate

B. haemoglobin

C. bicarbonate/carbonic acid

D. protein

Correct Answer: phosphate

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