ATI RN
Questions on Cells Tissues and Organs Questions
Question 1 of 5
What is a role performed by mitochondria?
Correct Answer: B
Rationale: Mitochondria produce ATP. The other tasks are performed by lysosomes, ribosomes and endoplasmic reticulum respectively.
Question 2 of 5
Which of the following is the smallest living structural unit of the body?
Correct Answer: D
Rationale: The cell is smallest structural unit that is deemed to be alive.
Question 3 of 5
Which one of the following best describes what a cell membrane consists of?
Correct Answer: B
Rationale: These are the three major constituents. Ribosomes and cytoplasm are found inside the cell.
Question 4 of 5
Epithelial and connective tissue differ from each other in which of the following characteristics?
Correct Answer: C
Rationale: The other choices are not correct.
Question 5 of 5
The cell membrane's resting potential(about −70 mV inside with respect to the outside) is due mainly to which of the following mechanisms?
Correct Answer: A
Rationale: The ATPase pump shifts 3 Na+ out of the cell and 2 K+ into the cell. This disparity in positive charge is the major influence on the resting potential.