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ATI LPN · Anatomy and Physiology · Questions About Digestive System

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

An investigation is carried out on digestion and absorption in the alimentary canal. The diagram shows the apparatus used. The visking tubing is permeable to small molecules such as glucose but not to large molecules such as starch. beaker water starch solution and amylase visking tubing glass rod to support visking tubing After one hour, samples of water in the beaker are tested with Benedict's solution and with iodine solution. Which colours are obtained?

A. blue with Benedict's, blue-black with iodine

B. blue with Benedict's, yellow-brown with iodine

C. red with Benedict's, blue-black with iodine

D. red with Benedict's, yellow-brown with iodine

Expert Explanatory Rationale

Correct Answer: red with Benedict's, yellow-brown with iodine

Question 2 of 5

The end product of digestion of starch which is absorbed into the bloodstream is:

A. amino acid

B. fatty acid

C. glucose

D. sucrose

Expert Explanatory Rationale

Correct Answer: glucose

Question 3 of 5

What is the name of the blood vessel that brings blood to the kidney?

A. Hepatic artery

B. Renal vein

C. Hepatic vein

D. Renal artery

Expert Explanatory Rationale

Correct Answer: Renal artery

Question 4 of 5

Alcohol causes dehydration. How?

A. Stimulates ADH production

B. Replaces water in the body

C. Makes you too drunk to drink water

D. Inhibits ADH production

Expert Explanatory Rationale

Correct Answer: Inhibits ADH production

Question 5 of 5

The disease caused due to deficiency of nicotinic acid is

A. Anaemia

B. Osteomalacia

C. Xerophthalmia

D. Pellagra

Expert Explanatory Rationale

Correct Answer: Pellagra