Lab 2

Question 1

Define simple Diffusion

Answer 1

Unassisted protein carrier

• walks through membrane

Question 2

Hypotonic

Answer 2

Absorb H20 , swell & burst (lyses)

Question 3

Symport system

Answer 3

2/more substance transport same direction

Question 4

Net diffusion

Answer 4

High concentration ➡️ low concentration

Question 5

Type of carrier mediated transport

Answer 5

▪️ Facilitated diffusion
▪️Active Transport

Question 6

Define sodium -potassium pump

Answer 6

Transport sodium ion OUT cell & potassium ions INTO cell using ATP

-maintains concentration

Question 7

Primary active transport

Answer 7

Ions pump across membrane using ATP

Question 8

Anti port system

Answer 8

2/more substance transport opposite direction

Question 9

Filtration

Answer 9

⏺️ need Passive transport
⏺️ water solute pass through high hydrostatic (pressure) ➡️low hydrostatic (pressure)

Question 10

Secondary active transport

Answer 10

-no ATP Require
- use carrier protein
- move more than 1 substances at time

Question 11

Vesicular transport

Answer 11

Vesicles that help move proteins & lipids across cell membrane

-Require ATP

Question 12

Endocytosis

Answer 12

Vesicular transport into cell

Question 13

Exocytosis

Answer 13

Vesicles transport out of cell

Question 14

Phagocytosis

Answer 14

Digesting bacteria /material

Question 15

Pinocytosis

Answer 15

Cell drinking

Question 16

Phagosome

Answer 16

White blood cell destroy foreign substances ex. Bacteria , dead cell removal

Question 17

Factors affecting Diffusion rates

Answer 17

1. Temperature
2. Large molecules move slower
3. Concentration rate
4. Permeability
5. Surface

Question 18

Hypertonic

Answer 18

Loose water, string & shrivel ( crenate)

Question 19

Facilitated diffusion

Answer 19

Assistance of membrane protein carrier

• molecules not allow to pass; need to find door to go in

Question 20

Contransport

Answer 20

Move solutes in same direction

Question 21

Countertransport

Answer 21

Move solute in opposite direction

Question 22

Osmotic pressure

Answer 22

Pulling force on H2O due to solute present in solution

Question 23

Hydrostatic pressure

Answer 23

Pushing force on H20 due to more fluid

Question 24

What pressure stops osmosis ?

Answer 24

Osmosis STOP due to filtering (filtration ) unwanted particles of H20 back cross the membrane due to HYDROSTATIC PRESSURE

Question 25

What’s diffusion

Answer 25

High ➡️ low concentration, uses kinetic energy

Question 26

Active transport

Answer 26

Low➡️ High

Question 27

Passive transport

Answer 27

High ➡️low

Question 28

High to low concentration are?

Answer 28

1. Diffusion
2. Osmosis
3. Passive transport

Question 29

Molecules need to be

Answer 29

Small & dissolve in lipid portion

• Note: if 1/ both criteria not met , then use simple diffusion

Question 30

Water only passes through

Answer 30

Osmosis

Question 31

Primary & secondary active transport are

Answer 31

Always together.

*If one don’t exist then other doesnt

Question 32

No net gain/loss is

Answer 32

Isotonic (complete equilibrium)

Question 33

Clathrin

Answer 33

Form vesicle & movement in cell

Question 34

Receptor medicated endocytosis

Answer 34

Selective process in plasma membrane

Question 35

List process requiring ATP

Answer 35

1. Primary active transport
2. Exocytosis
3. Phagocytosis (endocytosis)
4. Pinocytosis (endocytosis)
5. Receptor -mediated (endocytosis)

Question 36

What uses kinetic energy

Answer 36

1. Simple diffusion
2. Facilitated diffusion
3. osmosis

Question 37

Molecular weight solutes

Answer 37

Na+/Cl- 22.99/35.5

Urea. 60.07

Glucose. 180

Albumin. >200

Question 38

Osmolarity affects

Answer 38

Osmotic pressure & Tonicity

Question 39

1 osmole

Answer 39

1 mole of dissolved particles

• equal osmoles/liter solution