no energy is used high low it s the natural flow this means it goes down a concentration gradient n.
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Passive Transport. No energy is used [High]  [Low] (it’s the natural flow) This means it goes down a concentration gradient. What are the three types of passive transport?. 1. Diffusion 2. Osmosis 3. Facilitated Diffusion. [High]  [Low]. Diffusion. Osmosis. CH 2 OH. OH. +.

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no energy is used high low it s the natural flow this means it goes down a concentration gradient

Passive Transport

No energy is used

[High]  [Low] (it’s the natural flow)

This means it goes down a concentration gradient

what are the three types of passive transport
What are the three types of passive transport?

1. Diffusion

2. Osmosis

3. Facilitated Diffusion

energy is used low high this means it goes up or against a concentration gradient

Active Transport

Energy is used

[Low]  [High]

This means it goes up or against a concentration gradient

what are the three types of active transport
What are the three types of active transport?

1. Protein pumps

2. Endocytosis

3. Exocytosis

protein pumps
Protein Pumps

Protein Pumps:proteins use energy to pull or pump materials into or out of the cell to stockpile or store substances the cell needs

different types of membrane proteins page 126
Different Types of Membrane Proteins (page 126)

SIGNAL/ RECOGNITION

TRANSPORTERS

RECEPTORS

ENZYMES

different types of membrane proteins page 1261
Different Types of Membrane Proteins (page 126)

signal/recognition

2.

Enzymes

3.

receptor

4.

transporter

5.

endocytosis
When a particle is engulfed into the cell.

2 types

Phagocytosis: When a cell wraps part of its membrane arounda large particle forming a “pocket” or vesicle

Pinocytosis: The same process, but with smaller particles or liquids

Endocytosis
exocytosis
A vesicle carrying a substance

fuses with the cell membrane

and releases the substance

Exocytosis