Small fingerlike projection, which produce numerou

ATI RN

ATI RN Test Bank

Small finger-like projection, which produce numerous microscopic projections are supplied with a network of

A. Blood capillaries and lacteal B. Blood capillaries only C. Lacteal only D. A large lymphoid vessel and valves

Correct Answer: A

Rationale: Villi contain blood capillaries and lacteals for absorbing nutrients like glucose and fats.

Optimum pH for salivary amylase

A. 1.8 B. 7.8 C. 6.8 D. 3.4

Correct Answer: C

Rationale: Salivary amylase (ptyalin) works optimally at a pH of around 6.8, close to neutral.

Process of absorption of nutrients is carried out by

A. Passive transport B. Facilitated transport C. Active transport D. All of the above

Correct Answer: D

Rationale: Nutrient absorption involves passive, facilitated, and active transport mechanisms.

Which of the following is a function of gall bladder?

A. Deamination B. Bile storage C. Synthesis of plasma protein D. Storage of fat soluble vitamin

Correct Answer: B

Rationale: The gall bladder stores bile produced by the liver.

Our food mainly contains-

A. Carbohydrates B. Cellulose C. Sucrose D. Glucose

Correct Answer: A

Rationale: Carbohydrates are the primary component of most diets.

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