Question

In: Biology

Which one of the following vitamins is required for biosynthesis of coenzyme A: (a) thiamine (b)...

Which one of the following vitamins is required for biosynthesis of coenzyme A:


(a) thiamine
(b) niacin
(c) pantothenic acid
(d) cobalamin
(e) riboflavin

Solutions

Expert Solution

Ans:

c) pantothenic acid

Explanation: Coenzyme A ia coenzyme that paly important role in carbohydrate and fat metabolism. Pantothenic acid is an important component of coenzyme A which is required for it biosynthesis. It is a constituents of acyl carrier protein and involves in transacylation reaction. The biosynthetic pathway of coenzyme A is given below-

Thiamine is a important component of vitamin B1 that act as coenzyme in oxidative decarboxylation of -keto acid and in the formation or degradation of -ketol. Niacin is a pyridine derivatives and its coenzyme forms are NAD+ and NADP. Riboflavin (Vitamin B2) is a constituents of FMN and FAD coenzyme.Cobalamin is a derivatives of vitamin B12 that involves in intramolecular arrangements and methyl group transfer.


Related Solutions

1/Which coenzyme is required for aminotransferases? Select one: A. Flavin adenine dinucleotide (FAD) B. Thiamin pyrophosphate...
1/Which coenzyme is required for aminotransferases? Select one: A. Flavin adenine dinucleotide (FAD) B. Thiamin pyrophosphate (TPP) C. Pyridoxal phosphate (PLP) D. Nicotinamide adenine dinucleotide (NAD+) E. Folate 2/Which amino acid needs to be supplemented in the diet of patients with Phenylketonuria? Select one: A. Tyrosine B. Arginine C. Methionine D. Phenylalanine E. Tryptophan 3/5-fluorouracil is an anticancer drug that interferes with which of the following processes? Select one: A. Pyrimidine synthesis B. Purine catabolism C. Pyrimidine catabolism D. Purine...
How are vitamins A, E, and K related to cholesterol biosynthesis?
How are vitamins A, E, and K related to cholesterol biosynthesis?
Which enzyme contains the coenzyme biotin? What is the function of this coenzyme and how is...
Which enzyme contains the coenzyme biotin? What is the function of this coenzyme and how is it covalently attached to the enzyme? Show the steps in the mechanism of this enzyme.
13. Describe the type of reaction and the coenzyme required for the first step in amino...
13. Describe the type of reaction and the coenzyme required for the first step in amino acid catabolism?
NADH is required for the one-step reaction by which pyruvate is converted to; A. Oxaloacetate B....
NADH is required for the one-step reaction by which pyruvate is converted to; A. Oxaloacetate B. Acetyl CoA C. Phosphoenolpyruvate D. Lactate Bacterial DNA is not bound to histones unlike eukaryotic DNA T/F? All sphingolipids have in common which of the following? A. A glycerol backbone B. Ceramide C. Phosphorylcholine D. N-acetylneuraminic acid (NANA) E. A steroid ring structure to which spingosine is attached
If B vitamins assist with energy production, could taking increased doses of these vitamins increase energy/ATP...
If B vitamins assist with energy production, could taking increased doses of these vitamins increase energy/ATP production (or energy OUT).
1. which of the following is (are) required for evolution? a. high stable genome b. mutation...
1. which of the following is (are) required for evolution? a. high stable genome b. mutation c. competition d. heritable traits 2. what can you conclude about genetic differences and similarities between humans , chimpanzees, and E. coli? a. most conserved genes b. fairly conserved genes c. least conserved genes humans accelerated genes polymerases ribosomal RNAs 3. which of the following is true about the human genome? a. about half the genome codes for a protein b. about half the...
Which of the following is not required to find the critical value of r? df one-...
Which of the following is not required to find the critical value of r? df one- vs. two-tailed test positive or negative SP α level
Which of the following is not required to find the critical value of r? df one-...
Which of the following is not required to find the critical value of r? df one- vs. two-tailed test positive or negative SP α level
Which of the following statements is CORRECT? Select one: a. Even if companies are required to...
Which of the following statements is CORRECT? Select one: a. Even if companies are required to follow GAAP, two firms in exactly the same operating situation might not have exactly the same financial statement. b. If a firm follows generally accepted accounting principles (GAAP), then its reported net income will be identical to its reported net cash flow. c. The balance sheet shows us the firm’s financial situation over a period of time. d. The numbers shown on balance sheets...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT