ATI RN
Cell and Tissue Test Bank Questions Questions
Question 1 of 5
The resting membrane potential of a cell is the consequence of which of the following concentrations of ions?
Correct Answer: C
Rationale: These ionic species are largely responsible for the membrane potential(cations are negative ions). While there is a higher concentration of Ca outside the cell than inside, there are fewer Ca than Cl ions.
Question 2 of 5
Which of the following molecules cannot pass through the plasma membrane?
Correct Answer: C
Rationale: These hormones are not lipid soluble and too large to pass through channels.
Question 3 of 5
If the DNA strand sequence of bases is CTT AGA CTA ATA, what would the tRNA read?
Correct Answer: C
Rationale: Guanine(G) must be matched to cytosine(C) and vice versa. Adenine(A) must match with thymine(T). In RNA, uracil(U) replaces thymine, while both bind to adenine. Hence U must be matched to A.
Question 4 of 5
The nucleus of the cell contains the master nucleic acid:
Correct Answer: A
Rationale: DNA exists in the nucleus. The other three are ribonucleic acids.
Question 5 of 5
Which of the following structures is the primary organ of the integumentary system?
Correct Answer: D
Rationale: The skin is the primary organ of the integumentary system, serving as a protective barrier and regulating temperature.