Cell TransportCell Transport* Moving substances (such as food, water, waste, and oxygen and CO2) in and out of cells through

the cell membrane* There are 2 different types of Cell Transport

1. Diffusion

How most materials move in and out of cells

Osmosis

Type of passive transport that moves water across a

cell membrane

Examples of Diffusion:

1. Red blood cells move oxygen from lungs to all parts of the

body

2. For example, the movement of food or sugar across the cell

membrane

For example, in plant cells, osmosis keep plants from wilting because it causes

water to flow into the cell.

If soil is dry, water will leave the plant by osmosis. This causes a plant to wilt and eventually die.

Passive Transport

Type of diffusion that is energy-free.

2. Active Transport

Type of transport that requires energy to move large

substances across a cell membrane through a carrier

One-third of all the cell’s energy is used to transport

substances this way

_________ Transport_________ Transport* Moving substances (such as food, water, waste, and oxygen and CO2) in and out of cells through the ________

____________* There are 2 different types

1. _____________________________

How most materials move in and out of cells

____________________

Type of passive transport that moves ______________ across a cell membrane

Examples of Diffusion:

1. Red blood cells move ___________ from lungs to all

parts of the body

2. For example, the movement of food or ____________ across the

___________ membrane

For example, in plant cells, _______________ keep plants

from wilting because it causes _________ to flow

into the cell.

If soil is dry, ___________ will leave the plant by

________________. This causes a plant to wilt and eventually die.

_____________ Transport

Type of diffusion that is ___________-free.

2. _________________ _____________

Type of transport that requires _____________ to move large

substances across a cell membrane through a carrier

One-third of all the cell’s energy is used to transport

substances this way

**Use page A10 and A11 to fill in the blanks

Diffusion Active Transport

• Use the pictures on Page A11 to draw pictures of Diffusion and Active Transport

Diffusion is like: _____________________________ because ______________________

Active Transport is like: _____________________________ because ______________________

Video Questions

1. When do red blood cells become wrinkled?2. Does Passive transport require energy?3. The door to the ice rink is compared to what? 4. What is it called when water diffuses across a cell

membrane?5. How does anything diffuse? 6. Does Active Transport require energy?7. Can molecules move from low concentration to high

concentration? 8. How is cystic fibrosis related to active transport?9. How do substances that are too big fit through the

cell membrane?

Video Questions

1. When do red blood cells become wrinkled?2. Does Passive transport require energy?3. The door to the ice rink is compared to what? 4. What is it called when water diffuses across a cell

membrane?5. How does anything diffuse? 6. Does Active Transport require energy?7. Can molecules move from low concentration to high

concentration? 8. How is cystic fibrosis related to active transport?9. How do substances that are too big fit through the

cell membrane?