ATI RN
Exam Questions on Cells Tissues and Organs Questions
Question 1 of 5
Which one of the following terms best describes the structure of the cell membrane:
Correct Answer: A
Rationale: "fluid" implies the structure can move and change(not like a brick wall); mosaic refers to the presence of proteins scattered among the glycolipids.
Question 2 of 5
The diffusion of water through a membrane is referred to as
Correct Answer: C
Rationale: Osmosis is a word that is reserved for the movement of water through a membrane.
Question 3 of 5
What is the name of the process of division of a somatic cell's nucleus into two daughter nuclei?
Correct Answer: C
Rationale: Mitosis involves somatic cells. Meiosis refers to the production of the sex cells.
Question 4 of 5
Which of the following is the correct combination of the components for the nucleic acid RNA?
Correct Answer: A
Rationale: RNA must have the sugar ribose. Thymine exists in DNA but not RNA, where it is replaced with uracil.
Question 5 of 5
A type of intercellular connection in which the outermost portions of the two cell membranes have a tight seal together is termed a(n):
Correct Answer: A
Rationale: Tight junctions form a seal between cells.