Protein and nucleic acids
Assignment
Name: Class:
Date: Sheet no: Protein and nucleic acid
MCQ:
1. Which of the following base pairs would never be seen in a healthy double helix of a nucleic acid?
A. Adenine-thymine.
B. Guanine-cytosine.
C. Guanine-uracil.
D. Adenine-uracil.
2. Which of the following elements is not found in amino acids?
A. Sulphur.
B. Oxygen.
C. Phosphorus.
D. Nitrogen.
3. Which of the following can be found in proteins?
A. Phosphates.
B. Nucleotides.
C. Ribonucleotides.
D. Amino acids.
4. In which level of protein structure are the α helices and β pleated sheets found?
A. Secondary.
B. Tertiary.
C. Primary.
D. Principle.
5. Enzymes belong to which macromolecule-building block pair?
A. Nucleotides; nucleic acids.
B. Polypeptide; lipid.
C. Polypeptide; carbohydrate.
D. Polypeptide; protein.
6. Which of the following does not contribute to amino acid structure?
A. R-side group.
B. Glycerol.
C. Amino group.
D. Carboxyl group.
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