Chapter 8 RA

match the following ions with their description: potassium

• at a relatively higher concentration in the cytosol

• at a relatively higher concentration in the interstitial fluid

Tags

NGSS.HS-LS1-3

match the following ions with their description:
sodium

• at a relatively higher concentration in the cytosol

• at a relatively higher concentration in the interstitial fluid

match the following ions with their description:
chloride

• at a relatively higher concentration in the cytosol

• at a relatively higher concentration in the interstitial fluid

match the following ions with their description: calcium

• at a relatively higher concentration in the cytosol

• 
  at a relatively higher concentration in the interstitial fluid

Assuming that a cell is permeable to Na, what would happen if the outside concentration of Na in the table below changed from 150 mM to 200 mM?

• 
  More Na ions enter the cell.

• Fewer Na ions enter the cell.

• 
  There is no change.

Tags

NGSS.HS-LS1-3

By what process is sodium moved out of the cell?

• facilitated transport

• simple diffusion

• 
  active transport

• exocytosis

If ​[K] out is changed to 150 mM, what happens to E k?

• It becomes more positive.

• 
  It becomes more negative.

• It stays the same.

• It becomes zero.

If ​[K] in is changed to 5 mM, what happens to E K?

• It becomes more positive.

• It becomes more negative.

• It stays the same.

• It becomes zero.

If ​[K] in is changed to 150 mM, what happens to E k?

• 
  It becomes more positive.

• It becomes more negative.

• 
  It stays the same.

• It becomes zero.

Tags

NGSS.HS-PS2-5

If P na is changed to 0.4, what happens to Vm (membrane potential)?

• It becomes more positive.

• 
  It becomes more negative.

• It stays the same.

• It becomes zero.