Cell Membrane

Question 0

Integral proteins

Answer 0

Transport ions/ lipids/ molecules/ large substances through membrane

Question 1

2 types of proteins in plasma membrane?

Answer 1

Integral and peripheral

Question 2

Peripheral proteins

Answer 2

Interior or exterior of membrane
2 Receptors… Like bone cell and calcium.
1 Cell to cell communication

Question 3

Fluid mosaic model

Answer 3

Describes arrangement of molecules that make up cell membrane

Question 4

What is an ligand +example

Answer 4

Signal triggering molecule

Trams,it’s message/ command by going through or to integral protein

Example: _________

Question 5

What is a phospholipid

Answer 5

Lipid in cell membranes

With polar head (hydrophilic) and no polar tail，(hydrophobic)

Question 6

What is head of phospholipid made off

Answer 6

1 glycerol

Charged phosphate group

Question 7

What does it mean to be selectively permeable?

Answer 7

Small no polar substances can pass through

Only select substances can pass through

Question 8

3 types of passive transport

Answer 8

Osmosis
Diffusion
Facilitated diffusion

Question 9

Osmosis

Answer 9

WATER diffuses from high to low across membra

Question 10

Diffusion

Answer 10

Movement of a fluid from high to low concentration

Question 11

Facilitated diffusion

Answer 11

Diffusion of molecules through transport proteins

Question 12

What substances enter cell through facilitated diffusion

Answer 12

Ions, larger molecules

Polar

Question 13

3 osmotic solutions

Answer 13

Hypertonic
Hypotonic
Isotonic

Question 14

Hypertonic

Answer 14

More,solute than water

Less water

Question 15

Hypotonic

Answer 15

More water

Less solute

Question 16

Isotonic

Answer 16

Equal water and solute

Question 17

Cell is placed in

hypotonic solution

Answer 17

Animal cells burst (cytolysis) plant cells increase turgor pressure and like this condition

Question 18

Cell in hyper tonic

Answer 18

Animal shrivel up (plasmolysis)

Plants pull away from cell wall (crenation）

Question 19

Plasmolysis

Answer 19

Plant cell shrivels

Question 20

Crenation

Answer 20

Animal cell shrivels

Question 21

Cytolysis

Answer 21

Animal cells burst

Question 22

Turgor pressure

Answer 22

Plant cells push on cell wall

Question 23

3 types of active transport

Answer 23

Exocytosis
Endocytosis
Pino and phago
Pumps

Question 24

Exocytosis

Answer 24

Push things out of body

Question 25

Endocytosis

Answer 25

Brining things into cell against co cent ration gadient

Question 26

Pinocytosis

Answer 26

Liquids engulfed

Question 27

Phagocytosis

Answer 27

Large particles engulfed

Question 28

Pumps

Answer 28

Substances bind to carrier protein that transports substance across membrane using ATP

Question 29

Sodium Potassium Pump

Answer 29

Pumps 3 sodium ions out for every 2 potassium ions in opposite directions so sodium on out and potassium inside cell

Question 30

Equilibrium

Answer 30

All molecules of a substance are equally distributed

Question 31

Difference btwn active and passive transport

Answer 31

Active tries to not keep equilibrium, and passive keeps equilibrium