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Physiology > Cell Transport > Flashcards

Cell Transport Flashcards

1
Q

[type of cell transport]

high to low concentration; passive downhill

lipid soluble substances, gases, alcohol, steroid hormones

A

simple diffusion

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2
Q

[type of cell transport]

endocytosis of smaller substances

A

pinocytosis

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3
Q

[type of cell transport]

endocytosis of larger substances

A

phagocytosis

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4
Q

[type of cell transport]

this requires integral protein

A

carrier-mediated

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5
Q

[type of cell transport]

movement of water via aquaporins

A

osmosis, carrier-mediated

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6
Q

[type of cell transport]

movement of water from low concentration to high concentration

A

osmosis, carrier-mediated

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7
Q

[type of cell transport]

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

A

secondary active transport

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8
Q

[type of cell transport]

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

A

secondary AT

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9
Q

[type of cell transport]

Na/K ATPase is an example of ___

A

primary active transport

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10
Q

[type of cell transport]

indirectly require ATP, source of energy is Na

A

Secondary AT

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11
Q

Increased oil
Decreased radius of solute
Decreased membrane thickness

results to ____ permeability (increased/decreased)

A

increased

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12
Q

____ two substances, same chemical composition, different shape

A

stereocpecificity

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13
Q

____ Gal and Glu competes with what transporter in SI

A

SGLT1

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14
Q

Cite the three properties of carrier-mediated transport

A

stereospecific
Saturation
Competition

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15
Q

[which is faster]

At low-solute concentration,

Simple diffusion or facilitated diffusion

A

Facilitated diffusion

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16
Q

[which is faster]

At high-solute concentration,

Simple diffusion or facilitated diffusion

A

simple diffusion

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17
Q

which exhibits transport maximum,

simple diffusion or facilitated diffusion?

A

facilitated diffusion

18
Q

____ transporter for fructose from lumen to cell in SI

A

Glut 5

19
Q

transporter of glucose in the neurons

A

Glut 3

20
Q

transporter of glucose in BBB

A

glut 1

21
Q

NaK ATPase contributes ___ mV of the RMP

A

-4mV out of the -70

22
Q

This intercellular pump also contributes to BMR

A

NaK ATPase pump

23
Q

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

A

choroid plexus

24
Q

Digoxin acts on this pump

A

NaK ATPase pump

25
Q

___ is also called the proton pump

A

HK ATPase

26
Q

HK ATPase is found in what cells of the stomach

A

parietal

27
Q

___ pump also called SERCA

A

Ca-ATPase pump

28
Q

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

A

primary

29
Q

This type of active transporter indirectly relies on NaK ATPase pump

A

secondary active tranport

30
Q

[name the secondary active transporter]

Small intestine

A

SGLT 1

31
Q

[uphill/downhill]

The direction of Na transport using secondary active transport

A

downhill

32
Q

[name the secondary active transporter]

kidneys

A

SGLT 2

33
Q

this transporter decreases the intracellular Ca in the cardiac membrane

A

Na-Ca exchange

34
Q

The inhibition of Na-Ca pump leads to ____ cardiac contractility

(lesser, greater)

A

greater

35
Q

in Na-Ca exchange in the heart,

which moves uphill (or going out of the cell)

A

Calcium

36
Q

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

A

Sodium

37
Q

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

A

Sodium

38
Q

[increase/decrease]

Potassium level increases the risk and severity of digitalis toxicity

A

hypokalemia

39
Q

[increase/decrease]

hyperpolarized cardiac membrane and ____ level of potassium increases risk of digitalis toxicity

A

decreased

40
Q

transport calciumin the sarcoplasmic reticulum uses this pump

A

Ca-ATPase

Physiology (47 decks)

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