Cell Transport

What are the two main types of cell transport?

Answer explanation

Passive (requires NO energy) and Active (requires energy)

What term describes the cell membrane's ability to allow some substances to pass through the membrane but not others?

Answer explanation

Semipermeable and Selective Permeability

What are the types of passive transport?

Answer explanation

Diffusion (simple)

Facilitated Diffusion

Osmosis

What are the types of active transport?

Answer explanation

Bulk transport (endocytosis and exocytosis)

Protein Pumps

This term describes the number of molecules in a substance in a given area, such as the amount of salt in 20 ml of water.

• Concentration

• Solution

• Solute

• Semipermeable

Tags

NGSS.HS-PS1-5

What type of transport does not require energy?

Answer explanation

Passive Transport

Does passive transport go up or down the concentration gradient?

• Up

• Down

What specific type of transport involves the movement of molecules from a high concentration to a low concentration directly across the cell membrane?

• Diffusion (simple)

• Facilitated Diffusion

• Osmosis

• Active Transport

When something is moving DOWN the concentration gradient, it means it is moving from a ​ ​ (a)   concentration to a _​ (b)   concentration.

• high
• low

What is an example of a molecule that would diffuse directly through the membrane?

Answer explanation

Gases (Carbon Dioxide, Oxygen)

or Water