Question 1

Compare and contrast the mechanisms of the sodium-potassium pump and glucose-sodium cotransport systems.

Accepted Answer

The answer of Compare and contrast the mechanisms of the...

Question 2

MATCHING
a.Transmit information into cell
d.Use ATP to transport solutes
b.Catalyze reactions which take place within or along membrane surface
e.Anchor cell to extracellular matrix
c.Allow selective transport of ions or molecules
-channels

Accepted Answer

The answer of MATCHING
a.Transmit information into cell
d.Use ATP to transport...

Question 3

MATCHING
a.Transmit information into cell
d.Use ATP to transport solutes
b.Catalyze reactions which take place within or along membrane surface
e.Anchor cell to extracellular matrix
c.Allow selective transport of ions or molecules
-integrins

Accepted Answer

The answer of MATCHING
a.Transmit information into cell
d.Use ATP to transport...

Question 4

MATCHING
a.Transmit information into cell
d.Use ATP to transport solutes
b.Catalyze reactions which take place within or along membrane surface
e.Anchor cell to extracellular matrix
c.Allow selective transport of ions or molecules
-membranebound enzymes

Accepted Answer

The answer of MATCHING
a.Transmit information into cell
d.Use ATP to transport...

Question 5

Osmotic pressure of a solution is the amount of pressure exerted on the side of the selectively permeable containing a higher concentration of solute to prevent diffusion of solute.
__________________

Accepted Answer

water

Question 6

Compare and contrast the processes of facilitated diffusion and active transport.

Accepted Answer

The answer of Compare and contrast the processes of facilitated...

Question 7

MATCHING
a.Transmit information into cell
d.Use ATP to transport solutes
b.Catalyze reactions which take place within or along membrane surface
e.Anchor cell to extracellular matrix
c.Allow selective transport of ions or molecules
-signal transuction receptors

Accepted Answer

The answer of MATCHING
a.Transmit information into cell
d.Use ATP to transport...

Question 8

Sodium-potassium pumps maintain an electrochemical gradient.
__________________

Accepted Answer

Sodium-potassium pumps use energy to move sodium ions out of cells and potassium ions into cells, creating a concentration gradient of ions. This gradient also creates an electrical potential difference across the cell membrane, maintaining an electrochemical gradient.

Question 9

In cell membranes cholesterol and glycoproteins are exposed to the extracellular surface for cell recognition and adhesion to other cells.
__________________

Accepted Answer

glycolipids

Question 10

Cotransport systems directly provide energy for active transport of solutes.
__________________

Accepted Answer

indirectly

Question 11

If solution of A is hypotonic to B, then the direction of net movement of water is B to A .
__________________

Accepted Answer

hypertonic

Question 12

In the sodium-potassium pump, sodium ion release causes two K+ ions to be released into the cell.
__________________

Accepted Answer

phosphate

Question 13

Plasmolysis occurs in plant cells when the soil or water contains low concentration of salts or fertilizers.
__________________

Accepted Answer

high

Question 14

Mutations to ABC transporter genes contribute to cystic fibrosis.
__________________

Accepted Answer

Mutations to ABC transporter genes, specifically the CFTR gene, are the primary cause of cystic fibrosis. These mutations lead to a dysfunctional chloride ion channel, resulting in the buildup of thick, sticky mucus in the lungs and other organs.

Question 15

MATCHING
a.Transmit information into cell
d.Use ATP to transport solutes
b.Catalyze reactions which take place within or along membrane surface
e.Anchor cell to extracellular matrix
c.Allow selective transport of ions or molecules
-Describe some of the various activities performed by membrane proteins in multicellular organisms.

Accepted Answer

The answer of MATCHING
a.Transmit information into cell
d.Use ATP to transport...

Question 16

LDL cholesterol is taken into the cell by receptor-mediated endocytosis.
__________________

Accepted Answer

This statement is true. LDL cholesterol binds to LDL receptors on the cell surface and is then internalized into the cell by receptor-mediated endocytosis.

Question 17

MATCHING
a.Transmit information into cell
d.Use ATP to transport solutes
b.Catalyze reactions which take place within or along membrane surface
e.Anchor cell to extracellular matrix
c.Allow selective transport of ions or molecules
-protein pumps

Accepted Answer

The answer of MATCHING
a.Transmit information into cell
d.Use ATP to transport...

Quiz 5: Biological Membranes

Compare and contrast the mechanisms of the sodium-potassium pump and glucose-sodium cotransport systems.

MATCHING a.Transmit information into cell d.Use ATP to transport solutes b.Catalyze reactions which take place within or along membrane surface e.Anchor cell to extracellular matrix c.Allow selective transport of ions or molecules -channels

MATCHING a.Transmit information into cell d.Use ATP to transport solutes b.Catalyze reactions which take place within or along membrane surface e.Anchor cell to extracellular matrix c.Allow selective transport of ions or molecules -integrins

MATCHING a.Transmit information into cell d.Use ATP to transport solutes b.Catalyze reactions which take place within or along membrane surface e.Anchor cell to extracellular matrix c.Allow selective transport of ions or molecules -membranebound enzymes

Osmotic pressure of a solution is the amount of pressure exerted on the side of the selectively permeable containing a higher concentration of solute to prevent diffusion of solute. __________________

Compare and contrast the processes of facilitated diffusion and active transport.

MATCHING a.Transmit information into cell d.Use ATP to transport solutes b.Catalyze reactions which take place within or along membrane surface e.Anchor cell to extracellular matrix c.Allow selective transport of ions or molecules -signal transuction receptors

Sodium-potassium pumps maintain an electrochemical gradient. __________________

In cell membranes cholesterol and glycoproteins are exposed to the extracellular surface for cell recognition and adhesion to other cells. __________________

Cotransport systems directly provide energy for active transport of solutes. __________________

If solution of A is hypotonic to B, then the direction of net movement of water is B to A . __________________

In the sodium-potassium pump, sodium ion release causes two K+ ions to be released into the cell. __________________

Plasmolysis occurs in plant cells when the soil or water contains low concentration of salts or fertilizers. __________________

Mutations to ABC transporter genes contribute to cystic fibrosis. __________________

LDL cholesterol is taken into the cell by receptor-mediated endocytosis. __________________

MATCHING a.Transmit information into cell d.Use ATP to transport solutes b.Catalyze reactions which take place within or along membrane surface e.Anchor cell to extracellular matrix c.Allow selective transport of ions or molecules -protein pumps