Activities

1. When carrier proteins are used to move materials across a membrane by using energy this is known as what type of transport?
   
   
2. When a molecule is really small and can pass through the cell membrane easily without using energy, this is known as what type of transport?

3. What type of transport requires the use of ATP?
   
   
4. What type of transport does not use ATP?
   
   
5. At the end of the digestive process very small nutrients pass into the blood stream, explain the type of transport and the concentrations of these nutrients inside and outside of the blood stream.

6. Create a Venn diagram to show the similarities and differences between Active and Passive Transport
   
   
7. Explain 2 ways that active transport is different from diffusion.

Answer Key/Rubric

1. Active
   
   
2. Passive, or diffusion, or osmosis

3. Active transport
   
   
4. Passive transport, or diffusion, or osmosis
   
   
5. Acceptable responses include, but are not limited to:

Diffusion or passive transport is used to move the nutrients from an area of high concentration in the digestive system to an area of low concentration in the blood stream.

6. Acceptable responses include, but are not limited to:

7. Acceptable responses include, but are not limited to:

• Active transport uses energy, passive transport doesn’t use energy.
• In active transport molecules move from a low concentration to a high concentration.
• In diffusion molecules move from a high concentration to a low concentration.