The sodium-potassium pump moves ___________ sodium ions out of the cell for every 2
potassium ions it moves into the cell
a) 0
b) 1
c) 2
d) 3
e) 4
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, d) 3
The processing, sorting and directing of finished products to their final destination are
the functions of the:
a) ribosome
b) Golgi complex
c) lysosome
d) gelatinous mass of the cytosol
e) nucleus
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b) Golgi complex
Which of the following statements concerning negative feedback is INCORRECT?
a) With negative feedback, a control system's input and output continue to enhance
each other.
b) Negative feedback exists when a change in a regulated variable triggers a
response that opposes the change
c) It relies on communication between the components of homeostatic systems.
d) Negative feedback processes control such things as blood glucose levels, plasma
pH, and blood pressure.
e) The body's homeostatic control mechanisms operate on the principle of negative
feedback.
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, a) With negative feedback, a control system's input and output continue to
enhance each other.
In a typical resting cell:
a) sodium and potassium are at a state of equilibrium
b) sodium is actively pumped into the cell
c) the membrane potential is 0 mV
d) the membrane potential is a positive value
e) potassium is passively leaking out of the cell
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e) potassium is passively leaking out of the cell
Match the action potential characteristics with the statements below:
Peak of action potential-
a) Rising phase
b) Falling phase
c) Threshold
d) Measured at + 30mV
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d) Measured at + 30mV
In regard to ICF and ECF:
potassium ions it moves into the cell
a) 0
b) 1
c) 2
d) 3
e) 4
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, d) 3
The processing, sorting and directing of finished products to their final destination are
the functions of the:
a) ribosome
b) Golgi complex
c) lysosome
d) gelatinous mass of the cytosol
e) nucleus
Give this one a try later!
b) Golgi complex
Which of the following statements concerning negative feedback is INCORRECT?
a) With negative feedback, a control system's input and output continue to enhance
each other.
b) Negative feedback exists when a change in a regulated variable triggers a
response that opposes the change
c) It relies on communication between the components of homeostatic systems.
d) Negative feedback processes control such things as blood glucose levels, plasma
pH, and blood pressure.
e) The body's homeostatic control mechanisms operate on the principle of negative
feedback.
Give this one a try later!
, a) With negative feedback, a control system's input and output continue to
enhance each other.
In a typical resting cell:
a) sodium and potassium are at a state of equilibrium
b) sodium is actively pumped into the cell
c) the membrane potential is 0 mV
d) the membrane potential is a positive value
e) potassium is passively leaking out of the cell
Give this one a try later!
e) potassium is passively leaking out of the cell
Match the action potential characteristics with the statements below:
Peak of action potential-
a) Rising phase
b) Falling phase
c) Threshold
d) Measured at + 30mV
Give this one a try later!
d) Measured at + 30mV
In regard to ICF and ECF:
