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blume ch.3 36-43

Why did we compare a cells permeable membrane to a screen on the window? A permeable membrane would keep bad things out like a screen would keep flies out and the membrane lets good things in like a screen would let air in.
Describe diffusion: Movement from an area with more molecules to an area with less molecules.
what is equilibrium? when molecules are spread out evenly throughout a space.
what would cause a human cell to use fermentation instead of cellular respiration? When there is not enough oxygen for respiration to occur.
What two things do producers give off as wastes that consumers need? Oxygen and sugars
What 2 things do consumers give off that producers need? Carbon dioxide, and water
Give an example of a producer a plant
Give an example of a consumer a human
Created by: tfulco