Niacin can be synthesised in human beings from (A) Histidine (B) Phenylalanine (C) Tyrosine (D) Tryptophan

Niacin can be synthesised in human beings from  
(A) Histidine (B) Phenylalanine (C) Tyrosine (D) Tryptophan
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1 Answer

Answer :

(D) Tryptophan
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Related questions

Niacin can be synthesised in human beings from (A) Histidine (B) Phenylalanine (C) Tyrosine (D) Tryptophan

Description : Niacin can be synthesised in human beings from (A) Histidine (B) Phenylalanine (C) Tyrosine (D) Tryptophan

Last Answer : Answer : D

Niacin is synthesized in the body from (A) Tryptophan (B) Tyrosine (C) Glutamate (D) Aspartate

Description : Niacin is synthesized in the body from (A) Tryptophan (B) Tyrosine (C) Glutamate (D) Aspartate

Last Answer : (A) Tryptophan

Melatonin is synthesised from (A) Phenylalanine (B) Tyrosine (C) Tryptophan (D) None of these

Description : Melatonin is synthesised from (A) Phenylalanine (B) Tyrosine (C) Tryptophan (D) None of these

Last Answer : Answer : C

Serotonin is synthesised from (A) Serine (B) Phenylalanine (C) Tyrosine (D) Tryptophan

Description : Serotonin is synthesised from (A) Serine (B) Phenylalanine (C) Tyrosine (D) Tryptophan

Last Answer : Answer : D

Seratonin is derived in the body from the following amino acid: (A) Phenylalanine (B) Histidine (C) Tryptophan (D) Serine

Description : Seratonin is derived in the body from the following amino acid: (A) Phenylalanine (B) Histidine (C) Tryptophan (D) Serine

Last Answer : Answer : C

Niacin or nicotinic acid is a monocarboxylic acid derivative of (A) Pyridine (B) Pyrimidine (C) Flavin (D) Adenine

Description : Niacin or nicotinic acid is a monocarboxylic acid derivative of (A) Pyridine (B) Pyrimidine (C) Flavin (D) Adenine

Last Answer : (A) Pyridine

The pellagra preventive factor is (A) Riboflavin (B) Pantothenic acid (C) Niacin (D) Pyridoxine

Description : The pellagra preventive factor is (A) Riboflavin (B) Pantothenic acid (C) Niacin (D) Pyridoxine

Last Answer : (C) Niacin

Concentration of pyruvic acid and lactic acid in blood is increased due to deficiency of the vitamin (A) Thiamin (B) Riboflavin (C) Niacin (D) Pantothenic acid

Description : Concentration of pyruvic acid and lactic acid in blood is increased due to deficiency of the vitamin (A) Thiamin (B) Riboflavin (C) Niacin (D) Pantothenic acid

Last Answer : (A) Thiamin

The limiting amino acid of rice is (A) Lysine (B) Tryptophan (C) Phenylalanine (D) Tyrosine

Description : The limiting amino acid of rice is (A) Lysine (B) Tryptophan (C) Phenylalanine (D) Tyrosine

Last Answer : Answer : A

Million-Nasse’s reaction is specific for the amino acid: (A) Tryptophan (B) Tyrosine (C) Phenylalanine (D) Arginine

Description : Million-Nasse’s reaction is specific for the amino acid: (A) Tryptophan (B) Tyrosine (C) Phenylalanine (D) Arginine

Last Answer : Answer : B

.Khorana first deciphered the triplet codons of (a) serine and isoleucine (b) cysteine and valine (c) tyrosine and tryptophan (d) phenylalanine and methinonine.

Description : .Khorana first deciphered the triplet codons of (a) serine and isoleucine (b) cysteine and valine (c) tyrosine and tryptophan (d) phenylalanine and methinonine.

Last Answer : (a) serine and isoleucine

Khorana first deciphered the triplet codons of (a) serine and isoleucine (b) cysteine and valine (c) tyrosine and tryptophan (d) phenylalanine and methinonine

Description : Khorana first deciphered the triplet codons of (a) serine and isoleucine (b) cysteine and valine (c) tyrosine and tryptophan (d) phenylalanine and methinonine

Last Answer : (b) cysteine and valine

An amino acid used for the synthesis of thyroid hormone is (A) Tyrosine (B) Tryptophan (C) Histidine (D) Proline

Description : An amino acid used for the synthesis of thyroid hormone is (A) Tyrosine (B) Tryptophan (C) Histidine (D) Proline

Last Answer : Answer : A

An amino acid that does not take part in α helix formation is (A) Histidine (B) Tyrosine (C) Proline (D) Tryptophan

Description : An amino acid that does not take part in α helix formation is (A) Histidine (B) Tyrosine (C) Proline (D) Tryptophan

Last Answer : Answer : C

Niacin is synthesized in the body from (A) Tryptophan (B) Tyrosine (C) Glutamate (D) Aspartate

Description : Niacin is synthesized in the body from (A) Tryptophan (B) Tyrosine (C) Glutamate (D) Aspartate

Last Answer : Answer : A

The amino acid which synthesizes many hormornes: (A) Valine (B) Phenylalanine (C) Alanine (D) Histidine

Description : The amino acid which synthesizes many hormornes: (A) Valine (B) Phenylalanine (C) Alanine (D) Histidine

Last Answer : Answer : B

The amino acid containing an indole ring: (A) Tryptophan (B) Arginine (C) Threonine (D) Phenylalanine

Description : The amino acid containing an indole ring: (A) Tryptophan (B) Arginine (C) Threonine (D) Phenylalanine

Last Answer : Answer : A

Pulses are rich in (A) Lysine (B) Methionine (C) Tryptophan (D) Phenylalanine

Description : Pulses are rich in (A) Lysine (B) Methionine (C) Tryptophan (D) Phenylalanine

Last Answer : Answer : A

In mammalian tissues serine can be a biosynthetic precursor of (A) Methionine (B) Glycine (C) Tryptophan (D) Phenylalanine

Description : In mammalian tissues serine can be a biosynthetic precursor of (A) Methionine (B) Glycine (C) Tryptophan (D) Phenylalanine

Last Answer : Answer : B

Should I switch to the vitamins of my youth?

Description : Should I switch to the vitamins of my youth?

Last Answer : I take Flintstones. If you’re a guy make sure you don’t buy the one with iron.

What vitamins and/or supplements do you take daily?

Description : What vitamins and/or supplements do you take daily?

Last Answer : answer:My wife is a dietitian and recommends the supplements listed below for me. Also 6 cardiologists have OK'd them for me to take. I take them in the morning (except melatonin) with two 16 oz ... ) Melatonin 1.5 mg (sleep) Turmeric 450 mg (anti inflammatory) DRUGS: Aspirin 325mg (anticoagulant)

Is this too many capsules to take daily and, if so , why?

Description : Is this too many capsules to take daily and, if so , why?

Last Answer : This is why all these weird pills specify on the bottles “Not approved by the FDA.”

How fast should we drink our orange juice?

Description : How fast should we drink our orange juice?

Last Answer : I’m not sure we should be drinking orange juice at any speed.

Aside from vitamin pills how can I get vitamin e?

Description : Aside from vitamin pills how can I get vitamin e?

Last Answer : Avocados, tofu, almonds, to name a few.

How much do you trust the vitamins and herbs you take?

Description : How much do you trust the vitamins and herbs you take?

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Is it significant if a B-complex vitamin stains urine?

Description : Is it significant if a B-complex vitamin stains urine?

Last Answer : B-vitamins are water soluble and you will piss bright yellow any surplus. If you feel improvement, consider taking a lower dosage and seeing if that is adequate.

If you were only allowed to take a single supplement, what would it be? Why that one?

Description : If you were only allowed to take a single supplement, what would it be? Why that one?

Last Answer : The only supplement that seems to be consistently touted for health benefits is fish oil, as far as I can tell. Seems like everything else has conflicting research results.

Why do I feel sick after taking my vitamins?

Description : Why do I feel sick after taking my vitamins?

Last Answer : This is very common, especially certain vitamins and minerals when taken in large doses, but assuming you are talking about an average daily vitamin that only has 100% of the USRDA or less for each ingredient ... think it is a great idea to take a daily vitamin especially if you are not eating well.

What would happen if I accidentally took an extra vitamin dose for the day?

Description : What would happen if I accidentally took an extra vitamin dose for the day?

Last Answer : Nothing

What is the point in taking Vitamin supplements?

Description : What is the point in taking Vitamin supplements?

Last Answer : Most diets are missing some of the vitamins. Just don’t go overboard on the fat soluble vitamins, they can have side affects. And, Welcome to fluther.

How do I take a multivitamin that makes me throw up because it's so gross?

Description : How do I take a multivitamin that makes me throw up because it's so gross?

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What vitamin brand makes small calcium pills?

Description : What vitamin brand makes small calcium pills?

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Which vitamins do you use daily & why?

Description : Which vitamins do you use daily & why?

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Vitamins or supplements with multi-pill dosages: all at once, or throughout the day?

Description : Vitamins or supplements with multi-pill dosages: all at once, or throughout the day?

Last Answer : Dosages from the same type medication you can take at once. But a tip: If you take Codfishoil, some get a foul taste in their mouth during the day, as well as bad breath. Take it before you go to bed ... when you take the oil instead of in pill-form. Taste like sh*t, but it's what works the best!

Is there any chance that people will stop buying over the counter vitamins?

Description : Is there any chance that people will stop buying over the counter vitamins?

Last Answer : Or the supplement market will thrive as we are forced to live off of Top Ramen and Hot Dogs.

Are there any vitamins or herbal supplements that can aid in focus or memory?

Description : Are there any vitamins or herbal supplements that can aid in focus or memory?

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Transketolase activity is affected in (A) Bitoin deficiency (B) Pyridoxine deficiency (C) PABA deficiency (D) Thiamine deficiency

Description : Transketolase activity is affected in (A) Bitoin deficiency (B) Pyridoxine deficiency (C) PABA deficiency (D) Thiamine deficiency

Last Answer : D) Thiamine deficiency

During deficiency of thiamine the concentration of the following compound rises in blood and intracellular fluid: (A) Glycogen (B) Sugar (C) Amino acids (D) Pyruvic acid

Description : During deficiency of thiamine the concentration of the following compound rises in blood and intracellular fluid: (A) Glycogen (B) Sugar (C) Amino acids (D) Pyruvic acid

Last Answer : (D) Pyruvic acid

Which ot the following vitamin is involved in coenzyme function in tansaminations? (A) Nicotinamide (B) Pyridoxine (C) Thiamine (D) Riboflavin

Description : Which ot the following vitamin is involved in coenzyme function in tansaminations? (A) Nicotinamide (B) Pyridoxine (C) Thiamine (D) Riboflavin

Last Answer : B) Pyridoxine

Convulsive episodes occur when there is a severe deficiency of: (A) Pyridoxine (B) Folic acid (C) Thiamine (D) Riboflavin

Description : Convulsive episodes occur when there is a severe deficiency of: (A) Pyridoxine (B) Folic acid (C) Thiamine (D) Riboflavin

Last Answer : (A) Pyridoxine

Antirachitic vitamin is (A) Vitamin A (B) Vitamin D (C) Vitamin E (D) Vitamin K

Description : Antirachitic vitamin is (A) Vitamin A (B) Vitamin D (C) Vitamin E (D) Vitamin K

Last Answer : (D) Vitamin K

Sterilized milk is devoid of (A) Vitamin A (B) Vitamin B1 (C) Vitamin C (D) Vitamin D

Description : Sterilized milk is devoid of (A) Vitamin A (B) Vitamin B1 (C) Vitamin C (D) Vitamin D

Last Answer : (C) Vitamin C

Ascorbic acid can reduce A) 2, 4-dinitro benzene (B) 2, 6-Dichlorophenol Indophenol (C) 2, 4-dibromobenzene (D) 2, 6-dibromo benzene

Description : Ascorbic acid can reduce A) 2, 4-dinitro benzene (B) 2, 6-Dichlorophenol Indophenol (C) 2, 4-dibromobenzene (D) 2, 6-dibromo benzene

Last Answer : (B) 2, 6-Dichlorophenol Indophenol

Nyctalopia is (A) Drying of eyes (B) Destruction of cornea (C) Blindness (D) Inability to see in dimlight

Description : Nyctalopia is (A) Drying of eyes (B) Destruction of cornea (C) Blindness (D) Inability to see in dimlight

Last Answer : (D) Inability to see in dimlight

Anti-oxidant activity is present in (A) β-Carotene (B) Retinol (C) Retinoic acid (D) All of these

Description : Anti-oxidant activity is present in (A) β-Carotene (B) Retinol (C) Retinoic acid (D) All of these

Last Answer : (A) β-Carotene

Deficiency of vitamin B12 can be diagonised by (A) Carr-Price reaction (B) Ames assay (C) Watson-Schwartz test (D) Schilling test

Description : Deficiency of vitamin B12 can be diagonised by (A) Carr-Price reaction (B) Ames assay (C) Watson-Schwartz test (D) Schilling test

Last Answer : (D) Schilling test

Chemically, lipoic acid is (A) Saturated fatty acid (B) Unsaturated fatty acid (C) Amino acid (D) Sulphur containing fatty acid

Description : Chemically, lipoic acid is (A) Saturated fatty acid (B) Unsaturated fatty acid (C) Amino acid (D) Sulphur containing fatty acid

Last Answer : (D) Sulphur containing fatty acid

When eggs are cooked (A) Biotin is destroyed but avidin remains unaffected (B) Avidin is inactivated but biotin remains unaffected (C) Both avidin and biotin are inactivated (D) Both avidin and biotin remain unaffected

Description : When eggs are cooked (A) Biotin is destroyed but avidin remains unaffected (B) Avidin is inactivated but biotin remains unaffected (C) Both avidin and biotin are inactivated (D) Both avidin and biotin remain unaffected

Last Answer : (B) Avidin is inactivated but biotin remains unaffected

Pyridoxine deficiency can be diagnosed by measuring urinary excretion of (A) Pyruvic acid (B) Oxaloacetic acid (C) Xanthurenic acid (D) None of these

Description : Pyridoxine deficiency can be diagnosed by measuring urinary excretion of (A) Pyruvic acid (B) Oxaloacetic acid (C) Xanthurenic acid (D) None of these

Last Answer : (C) Xanthurenic acid

Pyridoxal phosphate is a coenzyme for (A) Glycogen synthetase (B) Phosphorylase (C) Both (A) and (B) (D) None of these

Description : Pyridoxal phosphate is a coenzyme for (A) Glycogen synthetase (B) Phosphorylase (C) Both (A) and (B) (D) None of these

Last Answer : (B) Phosphorylase