ATI RN
Questions on Cells Tissues and Organs Questions
Question 1 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.
Question 2 of 5
Cellular respiration is defined as
Correct Answer: A
Rationale: Cellular respiration is an intracellular process that generates energy in the form of ATP.
Question 3 of 5
The type of epithelium that is found lining internal body compartments, blood vessels and lungs is
Correct Answer: A
Rationale: Simple squamous lines internal surfaces requiring diffusion.
Question 4 of 5
The neuron is made up of all of the following EXCEPT:
Correct Answer: D
Rationale: Synapse is a junction between neurons, not a part of a single neuron.
Question 5 of 5
Unspecialized epithelial cells which act as a source for mitosis are called __________ cells.
Correct Answer: D
Rationale: Stem cells are unspecialized and proliferate.