Membrane Function

Due Jan 30, 2023 by 12pm
Points 7
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Available Jan 7, 2023 at 12am - Feb 19, 2023 at 11:59pm

This assignment was locked Feb 19, 2023 at 11:59pm.

Learning Objectives

After reading this material and watching these videos, you should be able to:

Define diffusion, osmosis, facilitated diffusion, active transport, endocytosis and exocytosis.
Identify and describe the method of transport for each of the following categories of molecules: water, carbon dioxide, oxygen, small nonpolar molecules, subunits, ions, macromolecules.

Do you understand? (Metacognition)

Test your understanding by answering these study guide questions

3. How would a cell secrete a protein that it had made? (ie how does the protein get from inside the cell to outside the cell). An example would be the cells that line your small intestine secrete digestive enzymes. Make sure to use the following vocabulary: endocytosis, vesicles, cytoskeleton, fusion of vesicle with the membrane.

4. How would a cell secrete H+? (ie how do these ions get from inside the cell to outside the cell) An example of this is what happens in your stomach-cells secrete H+ to keep the stomach acidic. Make sure to use the following vocabulary: high concentration, low concentration, concentration gradient, facilitated diffusion, transport proteins,