Which of these process would be catabolic) a) building muscle b) building fat c)

Question

Which of these process would be catabolic) a) building muscle b) building fat c) conversation of glucose of glycogen d) glycolysis 2. Metabolic products of carbohydrate and fatty acid metabolism enter the Krebs Cycle through which intermediate? A) ATP b) NAD c) Acetyl-CoA d) FADH_2 3. The most commonly used Biochemical reducing agent is: a) NAD b) FAD c) NADH d) NADPH 4. The most commonly used Biochemical reducing agent is: a) NAD b) FAD c) NADH d) NADPH 5. An energetically unfavorable reaction may proceed if: a) It's enzyme is allosterically activated b) Its enzyme has a low Km c) its enzyme has a high V max d) it is coupled to an energetically favorable reaction 6. Which of these phosphates yield more energy upon hydrolysis than ATP? A) sodium phosphate b) glucose-6-phosphate c) creative phosphate d) ADP 7. Which of these compounds would yield the most energy upon oxidation? A) CH_3CH_3 B) CH_3CH_2OH c) CH_3CHO d)CH_3CO_2H 8. In oxidative phosphorylation, ATP production is coupled to the oxidation of: a) NADH b) NADPH e) lactate d) pyruvate 9. The active carrier which is usually involved in removal of hydrogen atoms from molecules to form double bonds is: aO NAO b) NADP c) FAD d) B-12 10. Pantothenate is a part of which active carrier? A) NAD b) FAD c) Acetyl-CoA d) B-12 11. Which of these vitamins does not serve as a cofactor? A) niacin b) pyridoxine c) B-12 d) Vitamin A 12. Which of these processes control the rate of glucose metabolism? A) transcription factors b) allosteric enzymes c) glucose transporters d) all of these 13. The NAD molecule consists of a niacin molecule, an adenine molecule, a diphosphate molecule and two molecules a) glucose b) ribose c) pantothenate d) Flavin 14. FAD consists of an adenine molecule, a diphosphate molecule, two ribose molecules and a molecule a) second adenine b) pantothenate c) Flavin d) glucose 15. Which of these active carriers contains a sulfur atom? A) NAD b) ATP c) FAD d) Acetyl-CoA 1. Draw the chemical structures of all intermediates involved in all 10 steps of glycolysis. Include the names of the enzymes involved in each step and the sites of ATP formation or usage

Explanation / Answer

1) the metabolic processes in which there is breaking of large biomolecules into smaller molecules.

So answer is Glycolysis

2) Acetyl CoA (all other are energy molecules)

3) Most commonly used oxidizing agent is O2 , however NAD+ is also used as mild oxidizing agent

4) NADPH is used as reducing agent

5) Coupling of exergonic and endergonic reactions facilitate the endergonic reactions.

so coupling with energetically favourable reactions will help

6) Creatinine phosphate (three times that of ATP)

7) Alkane will yeild maximum energy

8) oxidation of pyruvate

9) FAD bring doubl bond

10 ) Acetyl CoA

11)Vitamin A will not act as CO-factor

12) All

13) Two ribose molecules

14) Flavin

15) FAD

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