exam 11 - 6. 12 pts. Refer to the diagram of a cell. a....

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Name:______________________________ Bio 311C Spring 2006 Exam 1 1. (4 pts) List and briefly describe 4 reasons given in class why water is important for life on Earth. 2. (6 pts) Mix and match: Assign the appropriate letter to the name of the functional group. A. B. C. D. E. H. ________ Amino group ________ Carboxyl group ________ Phosphate group ________ Ketone group ________ Hydroxyl group ________ Aldehyde group
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3. (5 pts) What three structural components make up a nucleotide? How many different kinds of nucleotides exist? List all of them. 4. (10 pts.) Using the following categories, assign the appropriate macromolecule to the example given. A. Carbohydrates B. Lipids C. Proteins ______________ Galactose ______________ Glycogen ______________ Testosterone ______________ Cellulose ______________ Keratin ______________ Chitin ______________ Cholesterol ______________ Beef fat ______________ Hemoglobin ______________ Collagen 5. (3 pts) List and briefly describe three sources of cell signals.
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Unformatted text preview: 6. 12 pts. Refer to the diagram of a cell. a. List and label only the components of the endomembrane system seen on the diagram. 6. Continued b. Is it an animal or a plant cell? Why? c. What function do the components of the endomembrane system all have in common? 7. (5 pts) Why must transmembrane proteins (proteins that span the plasma membrane) have polar and non-polar regions? Where would you expect to find the polar and non-polar regions of such a protein? 8. (2 pts) List the three domains of life. 9. (3 pts) List three types of endocytosis. Which type directly involves a transmembrane protein? 10. (4 pts) List two signal molecules that can freely diffuse through the plasma membrane. 11. (4 pts) Give two examples of signal receptor systems located in the plasma membrane. 12. (5 pts) Define and give two examples of the electrogenic pump....
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This note was uploaded on 03/19/2008 for the course BIO 311c taught by Professor Mrs.fritz during the Spring '08 term at UT Arlington.

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exam 11 - 6. 12 pts. Refer to the diagram of a cell. a....

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