1. Question 1
Which of the following biological molecules contain peptide bonds?
Proteins
Carbohydrates
Lipids
Nucleic Acids
Bloom’s level: Knowledge/Understanding

2. Question 2 What is the function of chaperonin proteins?
Denaturation of polypeptides
Assembling amino acids
Regulation of gene expression
Folding proteins
None of the above
Bloom’s level: Knowledge/Understanding

3. Question 3
Which amino acid is responsible for the formation of disulfide bonds?
Alanine
Proline
Tyrosine
Cysteine
Guanine
Bloom’s level: Knowledge/Understanding

4. Question 4 The addition of water to break a chemical bond is termed –
Dehydration synthesis
Hydrolysis
Condensation
Catabolism
Disassociation
Bloom’s level: Knowledge/Understanding

5. Question 5 Which lipid forms membranes? Triglycerides Steroids
Phospholipids
Terpenes
Saturated fates
Bloom’s level: Knowledge/Understanding

6. Question 6 Which of the following is not a function of proteins?
Coding for polypeptides
Catalyzes chemical reactions
Transport of material
Structural components of tissues
All of the above are protein functions
Bloom’s level: Knowledge/Understanding

7. Question 7
The 2 strands of DNA are covalently bonded together. These bonds are called phosphodiester bonds.
This is true
This is false
Bloom’s level: Knowledge/Understanding

8. Question 8 Which of the following is not part of a nucleotide?
5 carbon sugar
Phosphate group
Fatty acid chain
Nitrogenous base
Bloom’s level: Knowledge/Understanding

9. Question 9 The energy in lipids is stored in the C-H bonds.
This is true
This is false
Bloom’s level: Knowledge/Understanding

10. Question 10 Which of the following is an amino group? -OH -C=O -COOH
-SH
-NH2
Bloom’s level: Knowledge/Understanding

11. Question 11 Dehydration synthesis – Is used to link monomers
Removes water to form bonds
Is involved in protein synthesis
Can form disaccharides
All of the above
Bloom’s level: Application

12. Question 12
Lincosamides are a class of antibiotics that inhibit peptide bond formation. What type of biological molecule would be affected?
Lipids
Proteins
Nucleic Acids
Carbohydrates
Bloom’s level: Application

13. Question 13
If a chromosome contains 20% thymine, how much guanine should it have?
10%
20%
30%
40%
Bloom’s level: Application

14. Question 16 What happens when a lipid is hydrogenated?
Hydrogen is added to the fatty acid chains
The melting point is raised
The lipid is converted into a saturated fat
The fatty acid chain is straightened
All of the above
Bloom’s level: Application

15. Question 17
You worked at a fish hatchery and wanted to set up an experiment to deliver the female sex hormone, estrogen, to some fish. What type of molecule is estrogen?
Triglyceride
Polypeptide
Steroid
Terpene
Disaccharide
Bloom’s level: Application

16. Question 18 If a strand of DNA has a sequence
5’-ATCCTAG-3’, what would be the complementary sequence?
5’-CGAAGAT-3’
5’-TAGGATC-3’
3’-TAGGATC-5’
3’-CGAAGTC-5’
Bloom’s level: Application

17. Question 19
If a cell was grown in a growth medium that has a radioactive sulfur isotope which class of biomolecules will show the presence of the isotope?
Nucleic acids
Carbohydrates
Lipids
Proteins
Bloom’s level: Analysis

18. Answer Key to mc questionsD B C
B (False)
A (True) E E B C
B ignore – 14 deleted
C ignore – 15 deleted D