ATI RN
Exam Questions on Cells Tissues and Organs Questions
Question 1 of 5
If one strand of a DNA molecule has the base sequence ACGGCAC, the other strand will have the sequence:
Correct Answer: D
Rationale: Complementary strand: TGCCGTG (A-T, C-G pairing); UGCCGUG is RNA, not DNA.
Question 2 of 5
Which of the following is NOT a function of the plasma membrane?
Correct Answer: B
Rationale: The plasma membrane surrounds the cell, maintains integrity, and regulates transport, but the nucleus is the control center.
Question 3 of 5
What organelle is the site of protein synthesis?
Correct Answer: D
Rationale: Ribosomes are the sites where proteins are synthesized from mRNA.
Question 4 of 5
If a red blood cell is placed in a hypertonic solution, the blood cell will
Correct Answer: A
Rationale: In a hypertonic solution, water leaves the cell, causing it to shrink (crenation).
Question 5 of 5
An exact copy of each DNA strand is made during:
Correct Answer: D
Rationale: Replication creates an exact DNA copy during the S phase.