ATI RN
Cells Tissues and Organs Comprehension Questions Questions
Question 1 of 5
Sodium depletion differs from sodium retention in that it causes a reduction in
Correct Answer: A
Rationale: Na+ loss reduces ECF volume,lowe ring CVP; renin increases to compensate.
Question 2 of 5
Nervous tissue is not found in
Correct Answer: C
Rationale: The nervous tissue, consist of nerve cells, called neurons present in the brain, spinal cord and nerve which help for conduction of nerve impulses. Tendon is a connective tissue.
Question 3 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 4 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 5 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.