Cell Transport

Question 1

[type of cell transport]

high to low concentration; passive downhill

lipid soluble substances, gases, alcohol, steroid hormones

Answer 1

simple diffusion

Question 2

[type of cell transport]

endocytosis of smaller substances

Answer 2

pinocytosis

Question 3

[type of cell transport]

endocytosis of larger substances

Answer 3

phagocytosis

Question 4

[type of cell transport]

this requires integral protein

Answer 4

carrier-mediated

Question 5

[type of cell transport]

movement of water via aquaporins

Answer 5

osmosis, carrier-mediated

Question 6

[type of cell transport]

movement of water from low concentration to high concentration

Answer 6

osmosis, carrier-mediated

Question 7

[type of cell transport]

Uses Na from high [Na] to low [Na]

Answer 7

secondary active transport

Question 8

[type of cell transport]

examples of this are NaGlu cotransport
NaCl pump
NaCa pump
NaH pump in PCT

Answer 8

secondary AT

Question 9

[type of cell transport]

Na/K ATPase is an example of ___

Answer 9

primary active transport

Question 10

[type of cell transport]

indirectly require ATP, source of energy is Na

Answer 10

Secondary AT

Question 11

Increased oil
Decreased radius of solute
Decreased membrane thickness

results to ____ permeability (increased/decreased)

Answer 11

increased

Question 12

____ two substances, same chemical composition, different shape

Answer 12

stereocpecificity

Question 13

____ Gal and Glu competes with what transporter in SI

Answer 13

SGLT1

Question 14

Cite the three properties of carrier-mediated transport

Answer 14

stereospecific
Saturation
Competition

Question 15

[which is faster]

At low-solute concentration,

Simple diffusion or facilitated diffusion

Answer 15

Facilitated diffusion

Question 16

[which is faster]

At high-solute concentration,

Simple diffusion or facilitated diffusion

Answer 16

simple diffusion

Question 17

which exhibits transport maximum,

simple diffusion or facilitated diffusion?

Answer 17

facilitated diffusion

Question 18

____ transporter for fructose from lumen to cell in SI

Answer 18

Glut 5

Question 19

transporter of glucose in the neurons

Answer 19

Glut 3

Question 20

transporter of glucose in BBB

Answer 20

glut 1

Question 21

NaK ATPase contributes ___ mV of the RMP

Answer 21

-4mV out of the -70

Question 22

This intercellular pump also contributes to BMR

Answer 22

NaK ATPase pump

Question 23

NaK ATPase pump is ubiquitous. However, this is not seen in which part of the body

Answer 23

choroid plexus

Question 24

Digoxin acts on this pump

Answer 24

NaK ATPase pump

Question 25

___ is also called the proton pump

Answer 25

HK ATPase

Question 26

HK ATPase is found in what cells of the stomach

Answer 26

parietal

Question 27

___ pump also called SERCA

Answer 27

Ca-ATPase pump

Question 28

HK ATPase, NaK ATPase, Ca ATPase are ___ type of active transporter

Answer 28

primary

Question 29

This type of active transporter indirectly relies on NaK ATPase pump

Answer 29

secondary active tranport

Question 30

[name the secondary active transporter] Small intestine

Answer 30

SGLT 1

Question 31

[uphill/downhill] The direction of Na transport using secondary active transport

Answer 31

downhill

Question 32

[name the secondary active transporter] kidneys

Answer 32

SGLT 2

Question 33

this transporter decreases the intracellular Ca in the cardiac membrane

Answer 33

Na-Ca exchange

Question 34

The inhibition of Na-Ca pump leads to ____ cardiac contractility (lesser, greater)

Answer 34

greater

Question 35

in Na-Ca exchange in the heart, which moves uphill (or going out of the cell)

Answer 35

Calcium

Question 36

In NaK ATPase pump, which goes out of the cell?

Answer 36

Sodium

Question 37

In NaK ATPase pump, which goes out of the cell?

Answer 37

Sodium

Question 38

[increase/decrease] Potassium level increases the risk and severity of digitalis toxicity

Answer 38

hypokalemia

Question 39

[increase/decrease] hyperpolarized cardiac membrane and ____ level of potassium increases risk of digitalis toxicity

Answer 39

decreased

Question 40

transport calciumin the sarcoplasmic reticulum uses this pump

Answer 40

Ca-ATPase