Download Chapter 2 Section 3 – Materials move across the cell`s

Chapter 2.3 – Materials move across the cell’s membrane. (7.1.a)
Vocabulary: diffusion, passive transport, osmosis, active transport
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Give an example of how diffusion helps to maintain conditions necessary for life:
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Summarize what happens during diffusion.
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Give an example of how diffusion is utilized by the process of photosynthesis.
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What conditions would cause diffusion to slow down and equalize on either side
of the membrane?
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What is the role of the proteins embedded in the cell’s membrane?
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What is passive transport? Your answer should mention energy.
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What’s the difference between diffusion and osmosis?
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How is active transport different than passive transport?
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Explain how your body rids itself of excess salt. Does this require energy?
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On the back of this page, sketch a sequence that shows a cell taking in a particle
by endocytosis.
On the back of this page, sketch a sequence that shows a cell taking in a particle
by exocytosis.
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How does the surface area of a cell limit the growth of the cell?