cell biology 2 Flashcards

1
Q

moving from low concentration to high concentration

A

facilitated diffusion

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2
Q

examples of facilitated diffusion

A

Glut 1(glucose transporter)
chloride bicarbonate exchange (an example of antiport)
coupled port

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3
Q

solutes diffusing down the concentration gradient it is favorable

A

exogenic process

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4
Q

Transport protein

A

eukaryotic
channel protein

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5
Q

for glucose output

A

Glut 1

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6
Q

for water active ion in channels

A

coupled

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7
Q

ion channel function

A

play a role in many types of cellular communication
con

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8
Q

muscle construction and electric signaling nerve cell

A

maintain salt balance in cells and air ways linking to the lungs

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9
Q

reversible phase one

A

convert ATP-ADP

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10
Q

They are sensitivity to inhibition by _

A

vanadate

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11
Q

Types of transport ATPase

A

p-type
v-type
f-type
ABC type

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12
Q

sensitive to things like vanadate, get phosphorylation, break down ATP to ADP

A

P-type

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13
Q

found Witten organelles, multicomponent subunit ATP found in organelle is

A

V-type

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14
Q

found in bacteria mitchichondris

A

v-type

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15
Q

found in bacteria mitochondria, and chloroplast

A

F-p

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16
Q

require ATP in order to move things around

A

active transport

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17
Q

converting exogenic process to a favorable process ATP processes can be padded to it along.

A

Active transport

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18
Q

the molecules are given to pass regularly through it are going to be hydrophobic or non polar substrate

A

lipid bilayer

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19
Q

asymmetric and it prominent lipid is the phospholipid

A

lipid bilaayers

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20
Q

are the most abundant lipids in membranes

A

phospholipids

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21
Q

are formed by the addition of carbohydrates and lipids

A

glycolipids

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22
Q
  • is important because it’s going to increase membrane fluid at low temperate and also going to decrease fluid at high temperature keeping it to completely turn into liquid
A

cholesterol

23
Q

cholesterol

A

stabilize and maintain membranes

24
Q

are able to move around and within the membrane

25
different types of proteins
rotational lateral and transverse diffusion of the proteins the list common is transverse
26
outer membrane to inner membrane. usually get rotational and lateral movement within the membrane but will not see flip-flop, very often.
flip-flop (only time to see transverse diffusion)
27
phospholipids above their axes can occur
rotation
28
can also move within the monolayer, via lateral diffusion
phospholipids
29
found in the outer or inner layer. they are dynamic and act as a point of binding for cytoplasm. Help information organization formation in cytoplasm and help in cell signaling and transportation.
lipid raft
30
act as detect and respond to extracellular signal
cytoskeleton
31
transport nutrients and ions across the membrane binding activated immune system cells to their microbial target transporting toxin into intestinal fluid
functions of lipid raft
32
is the most often seen in enzymes involved in degradation of polymers
group specificity
33
enzymes have very high
substrate specificity
34
oxidoreductase undergo
reduction reaction
35
transferase
transfer functional group from one molecule to the other
36
hydrolase
cleavage of one molecules into two molecules
37
isomerase
move a functional group into one moleclue
38
enzymes are characterized by the
sensitivity to temperature
39
are usually metals ions or small organic molecules called coenzymes ( a lot of them require cofactors)
prosthetic group
40
they increase reaction rates by lowering the activation energy needed. They formed transient, reversible complexes with substrate molecules. they change the rate at which equilibrium is achieved, not the position on the equilibrium.
3 basic properties of catalysts
41
what overomme activation barrier
catalysts
42
are sensitive to factors such as molecules and ions that act as inhibitors of the environment
enzymes
43
most enzymes are sensitive to _ of the environment.
ionic strength
44
The_ of enzyme activity plays a vital role as the control mechanism in cell
inhibition
45
inhibitor of the greatest of enzymologists are _ and _
substrate and transition analogues
46
what bind to active side of an enzyme
competitive inhibitors
46
what bind to active side of an enzyme
competitive inhibitors
47
what binds to inhibitor side and alters the active side, causing conformation changes?
non competitive
47
what binds to inhibitor side and alters the active side, causing conformation changes?
non competitive
48
term to be like poison, binds to the enzyme covalently, causing permanent loss of catalytic activity, and are generally toxic to cells
irreversible inhibitors
49
bind to enzymes noncovalently and can dissociate from the enzyme.
reversible inhibitors
50
example of irreversible inhibitors
heavy metal ion, nerve gas poisons, some insecticieds
51
means permanent loss of cartilage activating in the enzyme
covalent binding.