Download Biochem Module 6 Exam Study Guide and more Exams Biochemistry in PDF only on Docsity!
1 /
Biochem Module 6 Exam Study Guide
1. thymine: In DNA, adenine always pairs with
2. guanine: In RNA, cytosine always pairs with
3. uracil: In RNA, adenine always pairs with
4. nucleotides: DNA is built from which of the following?
nucleosides genes purines nucleotides codons
5. hydrogen bonds: The double helix of DNA is stabilized mainly by
6. 2-deoxyribose: What pentose sugar is a constituent of DNA?
7. ribose: What pentose sugar is a constituent of RNA?
8. 1 ring, 2 nitrogens: Pyrimidines have ring(s),
containing nitrogen(s).
9. 2 rings, 2 nitrogens: Purines have ring(s), (each) containing
nitrogen(s).
10. ribonucleic acid (RNA): What nucleic acid is responsible for using the encoded genetic information to produce of
proteins found in living organisms?
2 /
11. A-T/U
C-G: What are the complementary bases?
12. 3 hydrogen bonds are made between G and C: How many hydrogen bonds are made
between guanine and its complementary nucleotide?
13. 2 hydrogen bonds are made between adenine and thymine/uracil: How many hydrogen
bonds are made between adenine and its complementary nucleotide?
14. 3'-CGTACTCGG-5': What is the complementary strand of DNA for the base sequence of DNA 5'-GCAT-GAGCC-
15. 3'-CGUAGUCGG-5': What is the complementary strand of RNA for the base sequence of RNA 5'-GCAT-GAGCC-
16. mRNA: Which type of RNA functions to carry genetic information from the DNA to ribosome?
17. codon: What is the set of three sequential nucleotides that encodes for a particular amino acid?
18. B-form and A-form: What type(s) of DNA has a right-handed helix?
19. cAMP: Which of the following is a second messenger in cells?
FAD
cAMP AMP dATP UTP
20. FAD: Which of the following acts a coenzyme?
4 /
28. GTP: Besides ATP, which other nucleotide is part of energy storage in cells?
29. refers to a ring-shaped carbon chain that has at least 1 atom that isn't
carbon in the ring: What does heterocyclic mean?
30. UMP: A major component of RNA, but not DNA is
31. The structure of DNA consists of two chains, or strands, that are not iden-tical,
but are complementary. This means that one chain binds to the other through hydrogen binding between the bases adenine and thymine, and also between cytosine and guanine. Adenine will only bind to thymine, and cytosine will only bind to guanine. Therefore, the two DNA strands are comple-mentary because the bases of each chain participate in complementary base pairing.: Scientists say that 2 DNA strands are complementary. Briefly describe what is meant by complementary. Provide an example in your response.
32. Non-covalent interactions contribute to the 3D shape and structures of RNA
molecules by allowing RNA to fold on itself via hydrogen bonding between complementary base pairs. Nucleotides interact with complementary resides to produce a secondary structure.: Briefly describe how non-covalent interactions contribute to the 3D shapes and structures of RNA molecules.
33. The Z-form of DNA is left-handed, while the A-form of DNA is right-hand-ed.: In
one sentence, identify the most noticeable difference between between the A-form and Z-form of DNA.
34. (A) nucleotides: In nucleic acid chemistry, compounds that contain an organic nitrogen-containing base, sugar,
and phosphate group are called (A).
35. (B) adenine and guanine: Two purines found in DNA are (B).
36. (C) uracil: A pyrimidine found in all RNA, but not in DNA is (C).
5 /
37. (D) cytosine and guanine: In DNA, the pair (D) is held together by 3 hydrogen bonds.
38. (E) 2-deoxyribose: In DNA, the pentose (E) serves as the monosaccharide.
39. A base, ribose, and phosphoric acid.: The monomers of RNA nucleic aids, called nucleotides, consist of 3
parts. What are those 3 parts?
40. guanine (purine): Identify the following structure.
42. thymine (pyrimidine): Identify the following structure.
43. cytosine (pyrimidine): Identify the following structure.
41. adenine (purine): Identify the following structure.
7 /
48. nucleotide: Identify the following structure.
49. 5' end: phosphate
3' end: -OH group: How can you tell the ditterence between the 5' and 3' ends of DNA?
50. adenine and guanine: What are the nucleoside purine bases?
51. cytosine, thymine, and uracil: What are the nucleoside pyrimidine bases?
