ATI RN
Cells and Tissue Multiple Choice Questions Questions
Question 1 of 5
In observing epithelial cells under a microscope, the cells are arranged in a single layer and look tall and narrow, and the nucleus is located close to the basal side of the cell. The specimen is what type of epithelial tissue?
Correct Answer: A
Rationale: Simple columnar epithelium consists of a single layer of tall, narrow cells with nuclei near the basal side, often found in absorptive surfaces like the intestine.
Question 2 of 5
Bonds that result from the transfer of electrons are called:
Correct Answer: A
Rationale: Ionic bonds form when electrons are transferred, creating charged ions that attract each other.
Question 3 of 5
Of the following nitrogenous bases, only one is found exclusively in RNA:
Correct Answer: D
Rationale: Uracil is unique to RNA, replacing thymine (found in DNA); guanine and adenine are in both.
Question 4 of 5
In Question 3, which organelle is involved in protein synthesis?
Correct Answer: B
Rationale: Ribosomes synthesize proteins by translating mRNA (referring to options in Q3).
Question 5 of 5
In the DNA molecule, the nitrogenous base adenine always pairs with:
Correct Answer: B
Rationale: Adenine pairs with thymine in DNA via two hydrogen bonds.