Discussion
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- Question
In deoxy hemoglobin (Hb), the Fe (II) is coordinated to
Options- A. four nitrogens of heme, the proximal His, and a water molecule
- B. four nitrogens of heme and to a water molecule
- C. two nitrogens of heme and to three His residues in Hb
- D. two nitrogens of heme and to three water molecules
- Correct Answer
- four nitrogens of heme, the proximal His, and a water molecule
- 1. In DNA replication, one new strand is synthesized complementary to an old (parent) strand and is referred as
Options- A. mutational
- B. semiconservative
- C. discontinuous
- D. antiparallel Discuss
- 2. Which of the following enzymes plays an important role in the Cori " cycle?
Options- A. Glucokinase
- B. Glucose-6-phosphate dehydrogenase
- C. Lactate dehydrogenase
- D. Glucose isomerase Discuss
- 3. DNA can be sequenced by the
Options- A. chemical method
- B. chain termination procedure
- C. both (a) and (b)
- D. physical method Discuss
- 4. The main site for gluconeogenesis is
Options- A. kidney
- B. liver
- C. brain
- D. muscle Discuss
- 5. Dihydroorotate dehydrogenase contains
Options- A. 4 flavins and 4 atoms of iron per molecule
- B. 2 flavins and 4 atoms of iron per molecule
- C. 2 flavins and 2 atoms of iron per molecule
- D. 4 flavins and 2 atoms of iron per molecule Discuss
- 6. How many ATPs are produced during citric acid cycle?
Options- A. 10
- B. 13
- C. 12
- D. 8 Discuss
- 7. How many types of lipoproteins are there?
Options- A. 2
- B. 6
- C. 8
- D. 5 Discuss
- 8. Oxidation of a molecule involves
Options- A. gain of electron
- B. loss of electron
- C. gain of proton
- D. loss of proton Discuss
- 9. The elements oxygen, nitrogen, and carbon
Options- A. can all form covalent bonds with other elements
- B. contain protons and neutrons in their atomic nuclei
- C. are common elements in the molecules that make up living organisms
- D. All of the above Discuss
- 10. Which of the following amino acids can interact with the DNA or RNA nucleotide bases via hydrogen bonding?
Options- A. Asn and Gln
- B. Cys and Met
- C. Lys and Leu
- D. Ile and Val Discuss
More questions
Correct Answer: semiconservative
Correct Answer: Lactate dehydrogenase
Correct Answer: both (a) and (b)
Correct Answer: liver
Correct Answer: 4 flavins and 4 atoms of iron per molecule
Correct Answer: 12
Correct Answer: 5
Correct Answer: loss of electron
Correct Answer: All of the above
Correct Answer: Asn and Gln
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