Name: ______________________________________________ Score: ________________________
Summative Test on Biomolecules
A. Which food molecule (monosaccharide, polysaccharide, lipid, protein) would
you eat if…
…you needed a quick boost of energy? _______________________________
…you wanted to grow strong nails? __________________________________
…you haven’t eaten in days? ________________________________________
…you wanted to grow healthy hair? __________________________________
…you have a race tomorrow afternoon? ______________________________
…you were getting ready for hibernation? ____________________________
…you wanted to get bigger muscles? _________________________________
…your next meal will be in a week? __________________________________
…you wanted to grow healthy skin? __________________________________
B. Identify each as to carbohydrate, protein, or lipid.
C. Match each molecule with its component(s)
Column A Column B
________1. Amino acid monomer A. Cellulose
________2. Fatty acids, carbon rings B. Fat
________3. Glucose, fructose C. Nucleotide
________4. Glucose, monomers D. Nucleic acid
________5. Glycerol, fatty acids E. Phospholipid
________6. Glycerol, fatty acids, phosphate F. Protein
________7. Nucleotide monomers G. Sucrose
________8. Sugar, phosphate bases H. Wax
I. Glucose
D. Multiple Choice: Write the letter of the correct answer on the space provided
before each number.
_______ 1. Which of the following is NOT found in DNA?
A. amino acid C. phosphate groups
B. nucleotides D. sugars
_______ 2. A sugar is an example of a __________, whereas DNA is a ________
A. Carbohydrate; nucleic acid C. Nucleic acid; lipid
B. Lipid; protein D. Protein; nucleic acid
_______ 3. Which are monomers that form polymers?
A. Amino acids; nucleic acids C. Monoglycerides; triglycerides
B. Carbohydrates; monosaccharides D. Nucleotides; nucleic acids
_______ 4. The sugar in RNA is __________, while the sugar in DNA is ___________.
A. deoxyribose, ribose C. ribose, phosphate
B. ribose, deoxyribose D. ribose, uracil
_______ 5. A nucleotide consists of
A. a sugar, a base and a phosphate C. paired bases
B. a sugar and a phosphate D. a sugar, a base and three phosphates
_______ 6. Which of the following is found on RNA but not in DNA?
A. Uracil C. Phosphate
B. Deoxyribose D. Adenine
_______ 7. Which of the following is a purine?
A. Cytosine C. Thymine
B. Adenine D. Uracil
_______ 8. The following are examples of pyrimidines EXCEPT
A. Adenine C. Uracil
B. Cytosine D. Thymine
_______ 9. The glycosidic bonds in DNA and RNA
A. Connect the sugar to the base C. stabilize Watson-Crick H- bonds
B. Connect the sugar to the phosphate D. are free to rotate over 180°
_______ 10. The ester bonds in DNA and RNA
A. Connect the sugar to the base C. stabilize Watson-Crick H- bonds
B. Connect the sugar to the phosphate D. are free to rotate over 180°
E. In not less than two sentences, explain the role of each biological molecule in
specific metabolic processes. (2 points each)
1. Carbohydrates
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2. Lipids
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3. Proteins
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4. Nucleic acids
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