Question

58 true or false 2 points
passive transport across plasma membranes is driven by concentration gradients, electrochemical gradients and osmosis, not atp.
true
false

59 multiple choice 2 points
chemoreceptors regulate breathing by responding to:
all of the above
oxygen
none of the above
blood ph
carbon dioxide

60 multiple choice 2 points
which of the following is a major region of the brain?z
cerebellum
all of the above
none of the above
diencephalon
cerebral hemispheres

Explanation:

Analyze Question 58

Passive transport relies on kinetic energy and physical gradients (concentration, electrochemical, or osmotic) to move substances across a membrane without cellular energy expenditure (ATP).

Analyze Question 59

Chemoreceptors involved in respiratory regulation (both central and peripheral) monitor and respond to changes in arterial \(P_{\text{CO}_2}\) (carbon dioxide), pH (hydrogen ion concentration), and \(P_{\text{O}_2}\) (oxygen) to adjust ventilation.

Analyze Question 60

The major anatomical regions of the brain include the cerebral hemispheres (cerebrum), diencephalon, brainstem, and cerebellum. Since all listed options are major regions, "all of the above" is correct.

Answer:

Question 58

• True (Correct answer)
• False

Question 59

• all of the above (Correct answer)
• oxygen
• none of the above
• blood pH
• carbon dioxide

Question 60

• cerebellum
• all of the above (Correct answer)
• none of the above
• diencephalon
• cerebral hemispheres