Download NOTES: 3.4 Friday Jan. 23

NOTES:
Q: What organelle is selectively permeable?
Draw and label a cell and the organelle above
Q: What does selectively permeable mean?
Q: What analogy did the book use to explain
what selectively permeable means?
Q: What materials need to move out of cells?
Q: What materials need to move into cells?
1
NOTES:
Q: What is diffusion?
Q: What causes diffusion?
Q: Why can unicellular organisms survive
in water?
Q: What would happen if the oxygen levels
were greater in the cell than outside of it?
Draw and label a picture of a cell before
diffusion and after diffusion occurs
2
NOTES:
Q: What is osmosis?
Q: How is osmosis like diffusion?
Q: What are the effects of osmosis on a
blood cell?
Draw and label a picture of the effects of
osmosis on a blood cell.
3
NOTES:
Q: What is passive transport? What analogy
is used to explain this process?
Q: What is active transport? What analogy
is used to explain this process?
Q: What are transport proteins?
Q: What substances are carried into and
out of a cell by transport proteins?
Draw & label a picture showing passive
transport, active transport & transport proteins
4
NOTES:
Q: What is transport by engulfing?
Q: Is engulfing passive or active transport?
Q: Why are cells small?
Q: What prevents a cell from growing
large?
Draw & label a picture showing engulfing
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