Quiz 2- Anna made Flashcards

(35 cards)

1
Q

What is an integral membrane protein

A

embedded in the plasma membrane go through it fully

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

What is an peripheral membrane protein

A

Attached to surface of plasma membrane

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

Membrane protein: transporters

A

(channels, pumps, gates) move substances across membrane

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

Membrane protein: Receptors

A

respond to neurotransmitters and hormones

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

Membrane protein: Identity markers

A

identify “self” to immune cells

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

Membrane protein: Enzymes

A

catalyze chemical reactions

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

Membrane protein: Anchoring sites

A

secure cytoskeleton to membrane

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

Membrane protein: Linkers

A

cell-to-cell attachment

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

Membrane lipid: Cholesterol

A

Lipoproteins: Strengthen membrane and stabilize against temperature extremes

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

Membrane lipid: Glycolipids

A

Lipids with attached carbohydrate groups: Maintain membrane

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

name the 3 membrane junctions

A

Tight junctions, Desmosomes, Gap junctions

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

Tight junctions

A

Protein “stitches” anchoring neighboring cells, Prevent substances from passing between cells, Require materials to move through, rather than between cells

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

Desmosomes

A

Stronger protein connections that link adjacent cytoskeletons

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

Gap junctions

A

Form tiny, fluid-filled tunnels Provide direct passageway for ions to travel between cells

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

function of the Golgi apparatus

A

Sorts and packages macromolecules for cell maintenance, repair and transport

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

function of Proteasomes

A

to destroy proteins

17
Q

What is osmosis?

A

Water going from low solute concentration to high concentration, glucose attracts it like a magnet.

18
Q

What happens to a cell when it is placed in an Isotonic solution: the amount of water in a cell stays the same?

A

the amount of water in a cell stays the same

19
Q

What happens to a cell when it is placed in a Hypotonic solution?

A

the amount of water in a cell increases, more glucose/solute inside the cell, the cell will burst this is called hemolysis

20
Q

What happens to a cell when it is placed in a Hypertonic solution?

A

the amount of water in a cell decreases, more glucose/solute outside the cell, the cell will crinkle up this is called crenation.

21
Q

when a cell explodes it is called

22
Q

when a cell crinkles up it is called

23
Q

simple diffusion

A

Molecules move unassisted between phospholipid membrane

24
Q

facilitated diffusion

A

Channel-mediated and Carrier-mediated

25
Primary Active Transport
Membrane protein uses ATP to change shape and carry substance across plasma membrane
26
Secondary Active Transport
uses the energy stored in these gradients to move other substances against their own gradients
27
Pinocytosis
cell drinking
28
phagocytosis
cell eating
29
exocytosis
Contents of a cell vacuole are released to the exterior
30
ribosome
protein synthesis
31
rough er
protein synthesis and packaging
32
smooth er
Synthesis of carbohydrates, lipids, and steroid hormones
33
lysosome
sac of digestive enzyme
34
peroxisome
breaking down toxic materials
35
Proteasomes
Protein-digesting organelles