ATI RN
Cells Tissues and Organs Comprehension Questions Questions
Question 1 of 5
Intestine absorbs the digested food materials. What type of epithelial cells are responsible for that?
Correct Answer: B
Rationale: Columnar epithelium consists of pillar-like cells with nuclei elongated. It's a lining of the stomach, intestine and gall bladder which helps in the absorption of water and digested food.
Question 2 of 5
Flexibility in plants is due to
Correct Answer: A
Rationale: Collenchyma is a permanent tissue in epidermis of petiole, leaves and stems of herbaceous dicots which provides flexibility.
Question 3 of 5
The exocrine gland stores its secretion until the glandular cell ruptures, whereas the gland releases its apical region and reforms.
Correct Answer: A
Rationale: Holocrine glands rupture to release secretions (e.g., sebaceous glands), while apocrine glands release their apical portion and reform (e.g., mammary glands).
Question 4 of 5
Which of the following central nervous system cells regulate ions, regulate the uptake and/or breakdown of some neurotransmitters, and contribute to the formation of the blood-brain barrier?
Correct Answer: D
Rationale: Astrocytes regulate ions, neurotransmitter levels, and help form the blood-brain barrier in the CNS.
Question 5 of 5
Fats are reaction products of fatty acids and:
Correct Answer: B
Rationale: Fats (triglycerides) form from glycerol and three fatty acids via dehydration synthesis.