Some sample questions about BIOCHEMISTRY

1. Which of the following lipids is saturated?


a.                    b.                     c.

2. Monounsaturated lipids are best for avoiding both cancer and heart disease. Look at the lipids in the figure for question 1, and select the monounsaturated lipid.
a.                   b.                       c.

3. Look at the following structures for nucleotides.
These nucleotides are found in
a. RNA                b. DNA                         c. ribosomes     d. all of these


4. Which of the following pairings is correct for DNA bases?
a. G pairs with C, A pairs with U
b. G pairs with A, C pairs with T
c. G pairs with C, A pairs with T
d. G pairs with G, A pairs with A

5. Sucrose is a disaccharide as shown in the figure below. It has the molecular formula of C₁₂H₂₂O₁₁. What is the molecular weight of sucrose?
a. 180            b. 342               c. 684                    d. 320

6. Which of the following statements about caloric content is correct: a. proteins and carbohydrates have 4 cal/gram; fat has 9 cal/gram
b. proteins and carbohydrates have 9 cal/gram; fat has 4 cal/gram
c. fat and proteins have 9 cal/gram; carbohydrates have 6 cal/gram
d. ethanol, proteins and carbohydrates have 6 cal/gram; fat has 9 cal/gram


7. What is the correct order for the flow of genetic information: a. DNA is transcribed to RNA which is then translated into a protein.
b. RNA is transcribed to DNA which is then translated into a protein.
c. Proteins contain the code for transcribing DNA which is tranlated into protein.
d. DNA is translated into proteins which are then transcribed into RNA.



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Hope you have enjoyed the show. As always you can send e-mail to me: Koni@chem.csustan.edu