ATI RN
Multiple Choice Questions on Cells Tissues and Organs Questions
Question 1 of 5
Which of the following statements about "leak channels" in the plasma membrane is correct?
Correct Answer: B
Rationale: This is the definition of leak channels. They may be "gated" which means shut until stimulated to open. J refers to facilitated diffusion.
Question 2 of 5
In a strand of DNA, what is the combination of deoxyribose and phosphate and base known as?
Correct Answer: D
Rationale: Three nucleotides form a codon and many codons form a chromatid.
Question 3 of 5
In the nucleus of the cell DNA is used as a template to form mRNA. What is the process called?
Correct Answer: B
Rationale: Transcription refers to the conversion of information on DNA into the form of mRNA.
Question 4 of 5
Dead skin cells are shed in thick sheets because the strong links are held together by anchoring junctions called__________.
Correct Answer: D
Rationale: Desmosomes provide strong adhesion between cells.
Question 5 of 5
The muscle tissue which shows no striations is
Correct Answer: B
Rationale: Smooth muscle lacks striations.