The nephron is surrounded by capillaries. What is their name?

Correct Answer: C

Rationale: Peritubular capillaries surround the nephron, facilitating reabsorption and secretion.

Correct Answer: A

Rationale: Vitamins are required in small amounts to regulate body processes and support various chemical reactions in the body.

Correct Answer: A

Rationale: Bile emulsifies fats, breaking them into smaller droplets to facilitate digestion by lipases.

Correct Answer: A

Rationale: Disaccharides, like sucrose, consist of two monosaccharides linked together and are broken down into simpler sugars during digestion.

Correct Answer: A

Rationale: Saliva contains the enzyme amylase that breaks some starches down into maltose and dextrin. Thus, digestion of food occurs within the mouth, even before the food reaches the stomach.