ATI RN
Exam Questions on Cells Tissues and Organs Questions
Question 1 of 5
Which one of the following cell types is found in epithelial tissue?
Correct Answer: D
Rationale: Melanocytes produce melanin to protect the skin from ultraviolet radiation and it results in tanning of the skin.
Question 2 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 3 of 5
Why does the plasma membrane of a cell present a barrier to the movement of electrolytes through it?
Correct Answer: B
Rationale: Electrolytes, being charged particles are not able to dissolve their way through the lipid plasma membrane(which is non-polar). Hence it is a barrier to them.
Question 4 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 5 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.