ATI RN
ATI RN Test Bank
Questions About Cells and Tissues Questions
Question 1 of 5
It is false that acids:
Correct Answer: C
Rationale: Acids increase H+ (low pH), not OH-, acting as proton donors.
Question 2 of 5
Which nucleotide base is absent from DNA?
Correct Answer: D
Rationale: Uracil is absent from DNA (present in RNA);
Question 3 of 5
Epithelia are involved in all the following except:
Correct Answer: C
Rationale: Epithelia protect, secrete, and absorb; connection is a role of connective tissue.
Question 4 of 5
Cartilage tissues are generally slow to heal after an injury because:
Correct Answer: A
Rationale: Cartilage lacks blood vessels (avascular), slowing nutrient delivery and healing.
Question 5 of 5
The main structural molecule of the plasma membrane is:
Correct Answer: D
Rationale: Phospholipids form the bilayer, the primary structural component of the plasma membrane.