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membrane permeability
47問 • 1年前
  • kiler
  • 通報

    問題一覧

  • 1

    What is the membrane

    Selective permeable

  • 2

    What is more K+ or Na+?

    K+

  • 3

    What are the types of transport?

    Pump, carrier, channel

  • 4

    What are pumps

    Use ATP and light for energy

  • 5

    What are carriers

    Proteins that move things without needing energy and pass down their concentration gradient

  • 6

    What are channels

    Tiny openings that let specific ions in and out

  • 7

    What are primary active transports?

    Pumps

  • 8

    Pumps mostly move what

    +ions with minor -ions

  • 9

    Types of ATP-driven pumps?

    F0F1ATPase,P-type ATPase,ABC transporters

  • 10

    What are the 2 types of F0F1-ATPase

    F, V

  • 11

    F0F1-ATPase and P-type ATPase generate what across the membrane?

    Chemical and electrical gradients

  • 12

    ABC transporters produce what gradients and has much wider solutes?

    Ion

  • 13

    What is F0F1-ATPase

    Is a protein using protons generated by other proteins to make ATP, it works both ways

  • 14

    Where is F0F1-ATPase located?

    In mitochondria, chloroplast, bacteria

  • 15

    What does V0V1-ATPase do

    Pumps protons into the cell

  • 16

    Where is V0V1-ATPase located at?

    In vacuoles

  • 17

    What does f1 do in f0f1?

    Make and break ATP

  • 18

    What does f0 do in f0f1?

    Allows protons to cross

  • 19

    Types of subunits in f0f1?

    A, b, y

  • 20

    What does a subunit do

    Has ATP but doesn't help

  • 21

    What does b subunit do

    Has no ATP or ADP but helps

  • 22

    What does y subunit do

    Tightly connected to the process of making or breaking of ATP and spins at 8000rpm in the mitochondria

  • 23

    How fast does y subunit spin?

    8000rpm

  • 24

    How many states of b subunit?

    Open, loose, tight

  • 25

    When is it slowest to break ATP in b subunit?

    When ATP attaches to open b subunit

  • 26

    What is V-type ATPase

    A protein in clathrin-coated vesicles, endosomes, lysosomes, Golgi, secretory vesicles and plant vacuoles

  • 27

    What are the functions of V-type ATPase?

    Uses the rotation part of c subunit to pump protons making it more acidic, proton gradients provide energy to help move H+ in the cell

  • 28

    How many H+ can be transported by v-type per ATP broken?

    1 to 2 H+

  • 29

    How many domains does P-type ATPase have?

    N, A, P, M

  • 30

    How many E does P-type have?

    E1, E2

  • 31

    What does E1 do

    Allow Ca2+ binding

  • 32

    What does E2 do

    Allows access from lumen of ER

  • 33

    Which type has the most diverse group?

    ABC transporters

  • 34

    What are types and how many domains in ABC transporters

    2 transmembrane and 2 cytoplasmic

  • 35

    What are MDR1 and MDR2

    Are proteins that help cancer cells resist different drugs, also they are a type of ABC transporter

  • 36

    What are membrane carriers?

    Are integral proteins that use electrochemical gradients to move chemical substances across the lipid bilayer

  • 37

    What do carriers move

    Ions, lipids, small soluble organic molecules

  • 38

    What are secondary reactions?

    Require ion gradients for energy to transport ion

  • 39

    How many types for carriers?

    Uniporter, antiporter, symporter

  • 40

    What does uniporter do

    Move 1 substance down the concentration

  • 41

    What does symporter do

    Move 2 or more substances in the same direction

  • 42

    What does antiporter do?

    Move 1 substance in one direction and the other in the opposite direction

  • 43

    What are channels

    Are tiny openings that control movement of ions and water

  • 44

    What are the types of channels?

    Aquaporin, ion channel

  • 45

    What does aquaprotin do

    Let water pass

  • 46

    What does ion channel do?

    Let ion pass

  • 47

    Functions of channels

    Control the size of the cell, sending signals, maintaining the pH

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    問題一覧

  • 1

    What is the membrane

    Selective permeable

  • 2

    What is more K+ or Na+?

    K+

  • 3

    What are the types of transport?

    Pump, carrier, channel

  • 4

    What are pumps

    Use ATP and light for energy

  • 5

    What are carriers

    Proteins that move things without needing energy and pass down their concentration gradient

  • 6

    What are channels

    Tiny openings that let specific ions in and out

  • 7

    What are primary active transports?

    Pumps

  • 8

    Pumps mostly move what

    +ions with minor -ions

  • 9

    Types of ATP-driven pumps?

    F0F1ATPase,P-type ATPase,ABC transporters

  • 10

    What are the 2 types of F0F1-ATPase

    F, V

  • 11

    F0F1-ATPase and P-type ATPase generate what across the membrane?

    Chemical and electrical gradients

  • 12

    ABC transporters produce what gradients and has much wider solutes?

    Ion

  • 13

    What is F0F1-ATPase

    Is a protein using protons generated by other proteins to make ATP, it works both ways

  • 14

    Where is F0F1-ATPase located?

    In mitochondria, chloroplast, bacteria

  • 15

    What does V0V1-ATPase do

    Pumps protons into the cell

  • 16

    Where is V0V1-ATPase located at?

    In vacuoles

  • 17

    What does f1 do in f0f1?

    Make and break ATP

  • 18

    What does f0 do in f0f1?

    Allows protons to cross

  • 19

    Types of subunits in f0f1?

    A, b, y

  • 20

    What does a subunit do

    Has ATP but doesn't help

  • 21

    What does b subunit do

    Has no ATP or ADP but helps

  • 22

    What does y subunit do

    Tightly connected to the process of making or breaking of ATP and spins at 8000rpm in the mitochondria

  • 23

    How fast does y subunit spin?

    8000rpm

  • 24

    How many states of b subunit?

    Open, loose, tight

  • 25

    When is it slowest to break ATP in b subunit?

    When ATP attaches to open b subunit

  • 26

    What is V-type ATPase

    A protein in clathrin-coated vesicles, endosomes, lysosomes, Golgi, secretory vesicles and plant vacuoles

  • 27

    What are the functions of V-type ATPase?

    Uses the rotation part of c subunit to pump protons making it more acidic, proton gradients provide energy to help move H+ in the cell

  • 28

    How many H+ can be transported by v-type per ATP broken?

    1 to 2 H+

  • 29

    How many domains does P-type ATPase have?

    N, A, P, M

  • 30

    How many E does P-type have?

    E1, E2

  • 31

    What does E1 do

    Allow Ca2+ binding

  • 32

    What does E2 do

    Allows access from lumen of ER

  • 33

    Which type has the most diverse group?

    ABC transporters

  • 34

    What are types and how many domains in ABC transporters

    2 transmembrane and 2 cytoplasmic

  • 35

    What are MDR1 and MDR2

    Are proteins that help cancer cells resist different drugs, also they are a type of ABC transporter

  • 36

    What are membrane carriers?

    Are integral proteins that use electrochemical gradients to move chemical substances across the lipid bilayer

  • 37

    What do carriers move

    Ions, lipids, small soluble organic molecules

  • 38

    What are secondary reactions?

    Require ion gradients for energy to transport ion

  • 39

    How many types for carriers?

    Uniporter, antiporter, symporter

  • 40

    What does uniporter do

    Move 1 substance down the concentration

  • 41

    What does symporter do

    Move 2 or more substances in the same direction

  • 42

    What does antiporter do?

    Move 1 substance in one direction and the other in the opposite direction

  • 43

    What are channels

    Are tiny openings that control movement of ions and water

  • 44

    What are the types of channels?

    Aquaporin, ion channel

  • 45

    What does aquaprotin do

    Let water pass

  • 46

    What does ion channel do?

    Let ion pass

  • 47

    Functions of channels

    Control the size of the cell, sending signals, maintaining the pH