ATI RN
Cell and Tissue Questions and Answers Questions
Question 1 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 2 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 3 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.
Question 4 of 5
The combination of a sugar, a base and at least one phosphate group is given the general term of:
Correct Answer: D
Rationale: A nucleoside is a nucleotide without a phosphate group.
Question 5 of 5
Muscle action can be classified as
Correct Answer: B
Rationale: Muscle actions are categorized as voluntary (controlled consciously) or involuntary (not under conscious control).