Biopolymers, structure and function of proteins and nucleic acids - Question Bank
1. The process of DNA replication involves:
2. What type of bond connects the nitrogenous base to the pentose sugar in a nucleotide?
3. Which of the following is a purine base found in nucleic acids?
4. What is the primary role of DNA in cells?
5. The term 'biopolymer' refers to:
6. Which type of bond maintains the secondary structure of proteins, such as alpha-helices and beta-sheets?
7. What are the building blocks of nucleic acids?
8. Which of the following best describes the tertiary structure of a protein?
9. Which of the following is NOT a component of a DNA nucleotide?
10. Which of the following is NOT a function of proteins?
11. The process of synthesizing a protein from an mRNA template is called:
12. The process of synthesizing RNA from a DNA template is called:
13. What is the complementary codon for the mRNA sequence AUG?
14. The genetic code is read in triplets of nucleotides called:
15. A segment of DNA that codes for a functional product (like a protein or RNA molecule) is called a:
16. The phosphodiester bond links:
17. Which part of a nucleotide forms the 'backbone' of a nucleic acid strand?
18. The active site of an enzyme is where:
19. What is the term for a protein that acts as a biological catalyst?
20. Disulfide bonds, which help stabilize tertiary and quaternary protein structures, are formed between two molecules of:
21. Which amino acid is known for its cyclic side chain and often introduces kinks in polypeptide chains?
22. The process by which a protein folds into its functional three-dimensional shape is called:
23. Polymers of amino acids are known as:
24. Ribosomal RNA (rRNA) is a major component of:
25. What is the role of transfer RNA (tRNA)?
26. Which type of RNA carries the genetic code from DNA to the ribosome?
27. RNA plays a crucial role in:
28. What is the primary function of DNA?
29. The structure of DNA is typically a double helix, with the two strands running in opposite directions. This is known as:
30. In DNA, Cytosine always pairs with:
31. The two strands of DNA are held together by hydrogen bonds between complementary bases. Adenine pairs with:
32. Which nitrogenous base is found in RNA but not typically in DNA?
33. Which nitrogenous bases are found in DNA?
34. In RNA, the sugar component is:
35. In DNA, the sugar component is:
36. A nucleotide consists of three components: a pentose sugar, a nitrogenous base, and a:
37. Nucleic acids are polymers of which monomers?
38. The genetic material of most organisms is:
39. Which amino acid is unique because it contains a sulfur atom in its side chain and can form disulfide bonds?
40. Collagen is a protein that provides structural support to:
41. What is the function of hemoglobin in the blood?
42. Enzymes are typically which type of biomolecule?
43. Which of the following is a common cause of protein denaturation?
44. Denaturation of a protein involves the loss of its:
45. Which level of protein structure involves the arrangement of multiple polypeptide subunits?
46. The overall three-dimensional shape of a single polypeptide chain is referred to as its:
47. Alpha-helices and beta-pleated sheets are common examples of which level of protein structure?
48. The sequence of amino acids in a polypeptide chain determines its:
49. Which type of bond links amino acids together in a polypeptide chain?
50. What is the primary function of proteins in biological systems?