YV4-Cells-Osmosis

• Biologie
• Middelbare school
• vwo
• Leerjaar 4

Cells & Osmosis

Osmosis

Which diagram best shows the end result of diffusion?

1. F
2. G
3. H
4. J

Diffusion is the movement of molecules from an area of _____ concentration to an ______ concentration

1. high, low
2. high, high
3. low, high
4. low, low

Which is true of passive transport?

1. Moves from low to high concentration
2. Requires energy
3. Moves from high to low concentration
4. Moves against the gradient

Prokaryotic cells contain a nucleus and nuclear material

1. True
2. False

Facilitated diffusion needs what to get particles from one side of the membrane to the other?

1. a membrane-spanning protein
2. a surface protein
3. a phospholipid
4. a carbohydrate

What is a difference between diffusion and facilitated diffusion?

1. movement of particles from [high] to [low]
2. a protein "helper"
3. movement of particles from [low] to [high]
4. energy

What does semi-permeable mean?

02:58

Where will the water go?

1. A
2. B

04:53

Where is the higher solute concentration

1. hypothetical pure water IV
2. red blood cells

04:53

What are the red blood cells compared to the hypothetical pure water IV?

1. hypertonic
2. hypotonic

05:34

An animal cell placed in a hypertonic (salty) solution will:

1. shrink
2. swell
3. stay the same