Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Biology 1306 > Chapter 7 Cell Membrane > Flashcards

Chapter 7 Cell Membrane Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Biology flashcards Biology 101 flashcards
1
Q

Phospholipid Head is ___

A

Hydrophobic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Phospholipid tail is

A

Hydrophilic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

cell membrane is the ___ of the cell

A

brain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

cell membrane is ___ perm

A

semi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Fluid Mosaic Model: ___ and ___ ( year)

A

Singer and Nicholson’s 1973

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Singer and Nicholas were first to look at

A

proteins + choloestrol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

water environment = saline = ._% solution

A

.9% saline solution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

.9% saline solution provides___

A

balance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

why mosaic model ?

A

celll mem was complicated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

why fluid model ? ( 4)

A

Lateral movement, flip flopping, cholesterol, and unsaturated phospholipid tails

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Proteins (3)

A

Integral; Transmembrane; Peripheral

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Integral Protein

A

Inside

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Transmembrane protien function

A

transport

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Transport Protiens (2)

A

Channel and Carrier

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Channel Protiens are

A

hydrophobic; is a pathway so subs can move through

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

channel proteins are aquaphorus

A

obtain water molecules

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Carrier Protiens…..

A

carried subs across membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Channel protein shape and carrier

A

2 frowny faces VS 2 crescents

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Perm of Liq Bi-Layer

A

Non polar (no charge ) molecules = hydrophobic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Nonpolar molecules mean

A

can all dissolve and cross membrane w/o protein help

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

why can non polar molecules dissolves and cross membrane w/o protien help?

A

inside is non polar also ( like w like )

22
Q

Carrier Protiens

A

shape will match item to make accross: passive process

23
Q

3 Mechanisms

A

Diffusion, active transport, electrical charges

24
Q

Diffusion explained

A

A passive process by which a sub moves DOWN its own conc gradient from high to low until equilibrium

25
Q

Diffusion explained

A

A passive process by which a sub moves DOWN its own conc gradient from high to low until equilibrium

26
Q

Diffusion examples

A

Small perfume in a big room: salting roads

27
Q

Diffusion of water is called

A

Osmosis

28
Q

3 RBC cond

A

Hypotonic, Hypeetonic, Isotinic

29
Q

Animals cells conditions;

A

Hypotonic; lysed , isotonic , hypertonic: crenation

30
Q

Crenation

A

When the cell will shrivel and die

31
Q

Plants 3 conditions

A

Turgid, flaccid, Plasmolyzed

32
Q

2nd type of mechanism

A

Active Transport

33
Q

A.T is required in form of

A

ATP

34
Q

A.T means

A

moving sub up/against conc gradient

35
Q

A.T means

A

moving sub up/against conc gradient

36
Q

Sodium Potassoum Pump function

A

balances both K and NA in cells ; is a carrier protein

37
Q

explain carrier protein pump

A

3’NA+ ions go into it, take shape

38
Q

Carrier Protien pump process

A
  1. Bind to carrier protien 2. stimulates phosphorus 3. ATP+ energy, 3Na released outside 4. Protiens changes shape to take on K+ 5. Loss of phos, back to same cycle
39
Q

A.T cell charges

A

Inside negative, cell membrane outside positive

40
Q

Animal Cell = ______ millivolts

A

-75

41
Q

6 steps of A.T

A

binds to carrier protien, stimulates phosphoration. ( add of phos), ATP + Energy 3NA released outside, protein changes shape for K

42
Q

-75MV =

A

resting membrane potential

43
Q

Plants A.T is

A

Proton Pump

44
Q

How does H+ come back in plants

A

H+ Sucrose cotransportor

45
Q

proton pump does what

A

removes H+ ions from cell

46
Q

Does H+ sucrose contransportor require energy?

A

No its like a waterfall, h+ carries surcrose

47
Q

2 Kinds of Bulk Transport

A

Exocytosis and Endocytosis

48
Q

Exocytosis

A

Out the cell

49
Q

Endocytosis (4)

A

Phagocytosis, Pinocytosis, Receptor mediated endocytosis, receptor protiens

50
Q

No receptors means

A

Cholestrol can’t be removed

Biology 1306 (19 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions