BIOM 525 Quiz 1 Questions and Answers- Liberty University

 Question 1
1 out of 1 points
The osmolarity of a solution of 50 mmol/L CaCl2 is closest to the osmolarity of which
of the following:

Selected
Answer:
150 mmol/L urea

Correct
Answer:
150 mmol/L urea


 Question 2
1 out of 1 points
Which of the following neurotransmitters would be inactivated by peptidases:

Selected
Answer: Vasopres
sin
Correct
Answer: Vasopres
sin
 Question 3
1 out of 1 points
Solution A contains 100 mmol/L glucose and Solution B contains 50 mmol/L NaCl.
Assume that gNaCl is 2.0, σglucose is 0.5, and σNaCl is 0.8. If a semipermeable
membrane separates the two solutions, what is the direction of water flow across the
membrane?

Selected
Answer: A to
B
Correct
Answer: A to
B
 Question 4
1 out of 1 points
Multi-unit smooth muscles are commonly found in these tissues except
Selected
Answer:
Bladder
Correct
Answer:
Bladder
 Question 5

, 0 out of 1 points
Bisects the bare zone and contains darkly staining proteins that link the central portions
of the thick filaments together.What component of the sacromere does this describe?

Selected
Answer: A
bands
Correct
Answer: M line
 Question 6
1 out of 1 points
Which of these statements about the cell membrane is inaccurate?
Selected
Answer:
They are highly permeable to water-soluble
substances
Correct
Answer:
They are highly permeable to water-soluble
substances
 Question 7
1 out of 1 points
Which of these ions has a higher intracellular to extracellular concentration ration in
humans?
Selected
Answer:
Potassium ion
Correct
Answer:
Potassium ion
 Question 8
0 out of 1 points
Which of these conditions results in electrolyte abnormality(ies) that cause(s) diminished
excitability of neuronal cells?

Selected
Answer: Metabolic acidosis
Correct
Answer: Epinephrine administration
 Question 9
0 out of 1 points
Which of these neurotransmitters is majorly inhibitory in its effect on
neurotransmission?
Selected
Answer:
Dopamin
e