ATI RN
Cell and Tissue Questions and Answers Questions
Question 1 of 5
Which one of the following cell types is found in epithelial tissue?
Correct Answer: D
Rationale: These cells produce keratin, the protein of the stratum corneum
Question 2 of 5
Cell membranes can maintain a difference in electrical charge between the interior of the cell and the extracellular fluid. What is this charge difference called?
Correct Answer: B
Rationale: The inside of a cell is negative while the exterior side of the membrane is positive. This difference in charge constitutes a difference in electrical potential(or voltage), known as the resting membrane potential. An action potential is generated when the membrane is stimulated and the potential reversed.
Question 3 of 5
What is the major function of lysosomes? They:
Correct Answer: D
Rationale: The prefix "lys-" refers to the ability to alter molecules by dividing them into smaller pieces.
Question 4 of 5
What term is used to describe the movement of dissolved particles along(or down) their concentration gradient?
Correct Answer: D
Rationale: Following the concentration gradient is a passive process. Choice C applies only to water molecules.
Question 5 of 5
In protein synthesis, where dose translation occur? In the:
Correct Answer: A
Rationale: Translation occurs in the cytoplasm(transcription occurs in the nucleus). DNA does not exist in the cytoplasm.