worksheet 2 - Bild1 The Cell Fridays 10am Centr 217A TA Xu...

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Bild1: The Cell TA: Xu Yu Zeng Office Hours Fridays 10am Centr 217A [email protected] Mon. Tap Ex 11am Worksheet 2 Membrane Properties It is a __________ bilayer that allows only small and _________ molecules to diffuse through. o [Ex] O 2 , CO 2, & CH 4 can easily diffuse through the membrane Large and ___________compounds cannot just diffuse through, they usually need a protein carrier to carry through the membrane o [Ex] Sugar, Amino acids, proteins Some molecules binds onto protein receptors to cause the membrane to cluster into a vesicle and take in the molecules into the cell, this is called ______________. Diffusion: the rate of diffusion depends on the concentration gradient of the molecule Diffusion does not require _____________, so it is a ____________ transport of molecules Molecules (substances) diffuse down its concentration gradient (from __________ to ________) and eventually it will reach a dynamic equilibrium with no _____ movement of substances Osmosis: the diffusion of __________ through a permeable membrane. There are 3 different mechanism 1.
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