passive transport

Question 1

What is passive transportation?

Answer 1

1) Movement of molecules across cell membrane
2)Without need for energy input driven by concentration gradients

Question 2

What are the three types of passive transportation?

Answer 2

Simple diffusion
Osmosis
Facilitated diffusion

Question 3

What happens when substances dissolve?

Answer 3

Molecules spread from area of high concentration to low

Question 4

Which one does not require a transport protein?

Answer 4

Simple diffusion

Question 5

In facilitated diffusion, what do membranes form and to do what?

Answer 5

Form pores
Assist in transport of specific ions or molecules

Question 6

Which is faster and why? Facilitated or simple diffusion

Answer 6

Facilitated diffusion
Involves specific membrane proteins that act as channels for molecules, allowing them to move more efficiently

Question 7

Define diffusion

Answer 7

molecules move from HIGH to LOW concentration