ATI RN
Cells and Tissues Multiple Choice Questions Questions
Question 1 of 5
A nail is inserted in the trunk of a tree at a height of 1 metre from the ground level. After 3 years the nail will
Correct Answer: C
Rationale: The nail remains at the same position as the increase in height of the plant is due to primary growth of apical meristem, not affecting the nail's vertical position.
Question 2 of 5
The cells responsible for the transmission of the nerve impulse are
Correct Answer: A
Rationale: Neurons transmit nerve impulses via their axons and dendrites.
Question 3 of 5
Molecules composed only of hydrogen and carbon are called:
Correct Answer: D
Rationale: Hydrocarbons are organic molecules with only carbon and hydrogen, unlike carbohydrates which include oxygen.
Question 4 of 5
Which represents the correct sequence in ascending order of size?
Correct Answer: A
Rationale: Atoms form amino acids, which link into polypeptides, which fold into proteins (smallest to largest).
Question 5 of 5
Endoplasmic reticulum with attached ribosomes is called:
Correct Answer: D
Rationale: Rough ER has ribosomes for protein synthesis; smooth ER lacks them.