The type of epithelial tissue that lines the inner surface of the stomach and intestines is: MCQ with Answer and Explanation

The type of epithelial tissue that lines the inner surface of the stomach and intestines is:
A. Stratified epithelium
B. Columnar epithelium
C. Squamous epithelium
D. Cuboidal epithelium
Answer: Option B
Solution (By JKSSB Mock Tests)
Simple columnar epithelium lines the stomach, intestines, and gallbladder, and functions in secretion and absorption. It often has microvilli (brush border) or goblet cells. Squamous epithelium lines alveoli and blood vessels, cuboidal kidney tubules.

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Practice More Biology Questions

Question #1
Consider statements about human blood: 1. Red blood cells lack a nucleus at maturity. 2. Platelets are essential for blood clotting. 3. Plasma constitutes about 45% of blood volume. Which are correct?
A. 1 and 2 only
B. 1, 2 and 3
C. 1 and 3 only
D. 2 and 3 only

Correct Answer: Option A


Explanation:
Mature mammalian red blood cells (erythrocytes) are enucleated to maximize space for hemoglobin. Platelets (thrombocytes) are cell fragments crucial for the blood coagulation cascade. Blood plasma, the liquid component, constitutes about 55% of total blood volume, while the formed elements (RBCs, WBCs, platelets) make up the remaining 45%. Thus, statements 1 and 2 are correct.

This question belongs to: Science Biology
Question #2
Growth hormone is secreted by which part of the pituitary?
A. Anterior lobe
B. Posterior lobe
C. Intermediate lobe
D. Hypothalamus

Correct Answer: Option A


Explanation:
Growth hormone (somatotropin) is produced by the anterior pituitary. It promotes growth of bones, muscles, and other tissues. Deficiency causes dwarfism; excess causes gigantism or acromegaly.

This question belongs to: Science Biology
Question #3
Which of the following statements about animal tissues is correct?
A. Cardiac muscle is striated and involuntary.
B. Skeletal muscle is involuntary and striated.
C. Smooth muscle is voluntary and non-striated.
D. Neurons are the only cells that produce myelin.

Correct Answer: Option A


Explanation:
Cardiac muscle has striations and contracts involuntarily. Skeletal muscle is voluntary, smooth involuntary; myelin is produced by Schwann cells (PNS) and oligodendrocytes (CNS), not neurons.

This question belongs to: Science Biology