Membrane Transport

Question 1

Types of Membrane Transport

Answer 1

Passive Diffusion
Active Diffusion
Vesicular

Question 2

Which types of membrane transport DON’T require energy

Answer 2

Passive DIffusion

Question 3

What types of membrane transport DO require energy

Answer 3

Active Transport

Vesicular

Question 4

Types of Passive Diffusion

Answer 4

Through membrane
Through channels
Facilitated Diffusion

Question 5

What can be transported through membrane

Answer 5

gases

small uncharged molecules

Question 6

What type of transporter does facilitated diffusion use

Answer 6

uniporter

Question 7

uniporter

Answer 7

carries 1 substance down it’s concentration gradient

Question 8

What does facilitated diffusion transport

Answer 8

single type of molecule

Question 9

What’s an example of a problem that can happen with facilitated diffusion

Answer 9

Type I diabetes

Question 10

What are factors that affect passive diffusion through channels

Answer 10

permeability
concentration gradient
selectivity

Question 11

Types of passive diffusion channels

Answer 11

Water

Ions

Question 12

What are water channels mediated by

Answer 12

aquaporins

Question 13

What is an example of a problem caused with mutated aquaporins

Answer 13

ND1

Question 14

Ion Channels have what kind of movement

Answer 14

down electrchemical gradient

Question 15

What are different types of gates

Answer 15

Mechanical, Ligand, Voltage

Question 16

Primary Active transport

Answer 16

Pumps driven directly by ATPase

Question 17

How does primary active transport transport small uncharged molecules

Answer 17

against their concentration gradient

Question 18

How does primary active transport transport ions

Answer 18

against their electrochemical graident

Question 19

What type of transporters does secondary active transport use

Answer 19

antiport, symport

Question 20

Secondary active transport

Answer 20

pumps driven indirectly by ATPase

Question 21

Antiporter

Answer 21

transports two substances in opposite directions

Question 22

Symporter

Answer 22

transports two substances in the same direction

Question 23

What is an ABC transporter an example of

Answer 23

primary active transport

Question 24

What does ABC protein/transporter mean

Answer 24

ATP binding cassette

Question 25

What are some functions of ABC proteins

Answer 25

hydrolyze ATP act as ion channel regulate ion channels

Question 26

What is an example of an ABC protein

Answer 26

CFTR, MDR

Question 27

What does vesicular transport involve

Answer 27

lipid fusion

Question 28

What are examples of vesicular transport

Answer 28

exocytosis | endocytosis

Question 29

What is the function of vesicular transport

Answer 29

to deal with larger molecules

Question 30

What are examples of endocytosis

Answer 30

phagocytosis | pinocytosis

Question 31

phagocytosis

Answer 31

engulfing solid particule

Question 32

examples of pinocytosis

Answer 32

fluid phase caveolae receptor mediated

Question 33

What is an example of receptor mediated pinocytosis

Answer 33

clathrin-mediated

Question 34

What does clathrin mediated pinocytosis do

Answer 34

forms a big net

Question 35

Exocytosis

Answer 35

material gets packaged into vesicles, which are then extreted to the ECM

Question 36

What is an example of a problem that can happen with vesicular transport

Answer 36

familial hypercholstermia

Question 37

Familial hypercholestermia puts you at a higher risk for what

Answer 37

atherosclerosis | coronary heart disease

Question 38

Familial hypercholestermia has high plasma levels of _____

Answer 38

LDL cholesterol

Question 39

NDI is caused by what

Answer 39

mutation in aquaporin-2 gene

Question 40

symptoms of NDI

Answer 40

excrete large amounts of diluted urine | excessive thirst

Question 41

characteristics of facilitated diffusion through uniporter

Answer 41

transport rate is higher than simmple diffusion its reversible its specific

Question 42

Vmax

Answer 42

max transport rate

Question 43

what are factors that control the transport rate

Answer 43

conc gradient transporter number affinity of binding

Question 44

how is glucose conc gradient maintained

Answer 44

converting glucose to glucose-6-phosphate