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

Correct Answer: D

Rationale: The renal artery supplies blood to the kidney for filtration.

Correct Answer: A

Rationale: Saliva does not aid in protein digestion; it primarily helps in moistening food, contains amylase for carbohydrate digestion, and facilitates chemical digestion.

Correct Answer: A

Rationale: The duodenum is the first part of the small intestine where most chemical digestion takes place.

Correct Answer: A

Rationale: Lipids, or triglycerides, consist of three fatty acids attached to a glycerol molecule and provide energy storage.

Correct Answer: C

Rationale: Bile juice, secreted by the liver, plays an important role in the digestion of fats by emulsifying them. It does not contain enzymes but helps break down fat molecules into smaller droplets for further digestion.