Amoeba Sìsters Video Recap: Celi Transport
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maintaining
homeostasis, because it
controls what enters
and leaves a cell.
2. What is simple diffusion?
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1. Sketch the
phospholipid bilayer of a celi membrane below and la bel the
polar heads and nonpolar tails. 3. Circle the statements below that would be TRUE about
simple diffusion. HINT: There is more than one!
(.W lt is a form of passive transport.
è]jJ Molecules trave! with the concentration gradient.
� lt is how glucose travels across the celi membrane.
� lt is how oxygen and carbon dioxide trave! across the
membrane.
E) This transport is typical for large molecules.
Moving with the Concentration Gradient
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4. "Moving with the flow" (i.e. going with the concentration gradient) is r� c.,ot'\
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the direction of flow in passive transport. Show this in the diagram on , \\
right by drawing in 10 total circles (to represent molecules). You must t"-
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decide a certa in amount to piace on the left vs. the right side after e
viewing the arrow indicating the direction of movement. Label the high
concentration side and low concentration side.
Endocytpsis and Exocytosis
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5.Are endocytosis and exocytosls for;._, of passive or active transp�rt? ·AJ-; ,;e__. +-'IQ\l'IS\?D{ t
6.Give a scenario where a celi may need to perform a form of eWiro����- , a� CV fos'/.s -C eJ)
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7. Give a scenario where a cell may need to perform a form of �5iocytosis.
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