Passive Transport Mechanisms

What are the 3 passive transport mechanisms?

What does it mean by 'passive'?

Define diffusion

What are the factors that affect the rate of diffusion?

How does the concentration gradient affect the rate of diffusion?

How does the thickness of the exchange surface affect the rate of diffusion?

How does the surface area affect the rate of diffusion?

How does the temperature affect the rate of diffusion?

Define osmosis

TRUE OR FALSE:
Pure water has the highest water potential

If two solutions are isotonic, what does that mean?

Complete the sentences:
Cells in an _________ solution will not lose or gain any water - there is no ______ movement of water molecules as there is no difference in _______ ___________ between the cell and the surrounding solution

If two solutions are hypotonic, what does that mean?

What happens when an animal cell is placed in a hypotonic solution?

What happens when a plant cell is placd in a hypotonic solution?

An animal cell bursts in a hypotonic solution, but a plant cell does not. Why?

If two solutions are hypertonic, what does that mean?

What happens when an animal cell is placed in a hypertonic solution?

What happens when a plant cell is placed in a hypertonic solution?

What types of molecules/particles would diffuse extremely slowly through the phospholipid bilayer?

Why do some larger molecules and charged particles diffuse slowly through the phospholipid bilayer?

What does facilitated diffusion do?

What do carrier proteins move?

Give an example of a carrier protein

How does facilitated diffusion via carrier proteins work?

How do channel proteins work?

Complete the sentences:
The pores that _________ proteins form in the membrane are lined with ________ groups, allowing charged ____ to pass through. Usually each channel protein is _________ for one type of ion