ATI RN
Cells and Tissues Multiple Choice Questions Questions
Question 1 of 5
Which of the following is the epithelial tissue that lines the interior of blood vessels?
Correct Answer: C
Rationale: Simple squamous epithelium, with its thin, flat cells, lines blood vessels (endothelium) for efficient exchange.
Question 2 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 3 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 4 of 5
Endoplasmic reticulum with attached ribosomes is called:
Correct Answer: D
Rationale: Rough ER has ribosomes for protein synthesis; smooth ER lacks them.
Question 5 of 5
The 'backbone' of DNA consists of repetitive sequences of phosphate and:
Correct Answer: B
Rationale: DNA's backbone is alternating phosphate and deoxyribose sugar units.