The most potent Vitamin D metabolite is (A) 25-Hydroxycholecalciferol (B) 1,25-Dihydroxycholecalciferol (C) 24, 25-Dihydroxycholecalciferol (D) 7-Dehydrocholesterol

The most potent Vitamin D metabolite is  
(A) 25-Hydroxycholecalciferol (B) 1,25-Dihydroxycholecalciferol  (C) 24, 25-Dihydroxycholecalciferol (D) 7-Dehydrocholesterol
by

1 Answer

Answer :

(B) 1,25-Dihydroxycholecalciferol
by

Related questions

The most potent Vitamin D metabolite is (A) 25-Hydroxycholecalciferol (B) 1,25-Dihydroxycholecalciferol (C) 24, 25-Dihydroxycholecalciferol (D) 7-Dehydrocholesterol

Description : The most potent Vitamin D metabolite is (A) 25-Hydroxycholecalciferol (B) 1,25-Dihydroxycholecalciferol (C) 24, 25-Dihydroxycholecalciferol (D) 7-Dehydrocholesterol

Last Answer : Answer : B

Calcitriol inhibits the conversion of (A) Cholesterol into 7-dehydrocholesterol (B) Cholecalciferol into 1-hydroxycholecalciferol (C) Cholecalciferol into 25-hydroxycholecalciferol (D) 25-Hydroxycholecalciferol into 1,25- dihydroxycholecalciferol

Description : Calcitriol inhibits the conversion of (A) Cholesterol into 7-dehydrocholesterol (B) Cholecalciferol into 1-hydroxycholecalciferol (C) Cholecalciferol into 25-hydroxycholecalciferol (D) 25-Hydroxycholecalciferol into 1,25- dihydroxycholecalciferol

Last Answer : Answer : D

The most active form of Vitamin D is (A) 25-Hydroxycholecalciferol (B) 1, 25-dihydroxycholecalciferol (C) 25-dihydroxyergocalciferol (D) None of these

Description : The most active form of Vitamin D is (A) 25-Hydroxycholecalciferol (B) 1, 25-dihydroxycholecalciferol (C) 25-dihydroxyergocalciferol (D) None of these

Last Answer : Answer : A

Parathormone is required for the conversion of (A) Cholecalciferol into 1-hydroxycholecalciferol (B) Cholecalciferol into 25-hydroxycholecalciferol (C) 25-Hydroxycholecalciferol into calcitriol (D) Cholesterol into 7-dehydrocholesterol

Description : Parathormone is required for the conversion of (A) Cholecalciferol into 1-hydroxycholecalciferol (B) Cholecalciferol into 25-hydroxycholecalciferol (C) 25-Hydroxycholecalciferol into calcitriol (D) Cholesterol into 7-dehydrocholesterol

Last Answer : Answer : C

A provitamin D synthesized in human beings is (A) Ergosterol (B) 7-Dehydrocholesterol (C) Cholecalciferol (D) 25-Hydroxycholecalciferol

Description : A provitamin D synthesized in human beings is (A) Ergosterol (B) 7-Dehydrocholesterol (C) Cholecalciferol (D) 25-Hydroxycholecalciferol

Last Answer : Answer : B

The structure shown below is of (A) Cholecalciferol (B) 25-Hydroxycholecalciferol (C) Ergocalciferol (D) 7-Dehydrocholesterol

Description : The structure shown below is of (A) Cholecalciferol (B) 25-Hydroxycholecalciferol (C) Ergocalciferol (D) 7-Dehydrocholesterol

Last Answer : Answer : A

A metabolite which is common to pathways of cholesterol biosynthesis from acetyl-CoA and cholecalciferol formation from cholesterol is (A) Zymosterol (B) Lumisterol (C) Ergosterol (D) 7 Dehydrocholesterol

Description : A metabolite which is common to pathways of cholesterol biosynthesis from acetyl-CoA and cholecalciferol formation from cholesterol is (A) Zymosterol (B) Lumisterol (C) Ergosterol (D) 7 Dehydrocholesterol

Last Answer : Answer : D

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.

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.

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.

What vitamin brand makes small calcium pills?

Description : What vitamin brand makes small calcium pills?

Last Answer : answer:We give my very old mother “Citracal Petites” because they are small. http://www.citracal.com/Product/Tablets-Caplets.aspx

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

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

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

‘Xanthurenic acid index’ is a reliable criterion for the deficiency of the vitamin (A) Pyridoxal (B) Thiamin (C) Pantothenic acid (D) Cobalamin

Description : ‘Xanthurenic acid index’ is a reliable criterion for the deficiency of the vitamin (A) Pyridoxal (B) Thiamin (C) Pantothenic acid (D) Cobalamin

Last Answer : (A) Pyridoxal

Magenta tongue is found in the deficiency of the vitamin (A) Riboflavin (B) Thiamin (C) Nicotinic acid (D) Pyridoxine

Description : Magenta tongue is found in the deficiency of the vitamin (A) Riboflavin (B) Thiamin (C) Nicotinic acid (D) Pyridoxine

Last Answer : (A) Riboflavin

Vitamin B1 coenzyme (TPP) is involved in (A) Oxidative decarboxylation (B) Hydroxylation (C) Transamination (D) Carboxylation

Description : Vitamin B1 coenzyme (TPP) is involved in (A) Oxidative decarboxylation (B) Hydroxylation (C) Transamination (D) Carboxylation

Last Answer : (A) Oxidative decarboxylation

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

Vitamin K is involved in posttranslational modification of the blood clotting factors by acting as cofactor for the enzyme (A) Carboxylase (B) Decarboxylase (C) Hydroxylase (D) Oxidase

Description : Vitamin K is involved in posttranslational modification of the blood clotting factors by acting as cofactor for the enzyme (A) Carboxylase (B) Decarboxylase (C) Hydroxylase (D) Oxidase

Last Answer : (A) Carboxylase

Creatinuria is caused due to the deficiency of vitamin (A) A (B) K (C) E (D) D

Description : Creatinuria is caused due to the deficiency of vitamin (A) A (B) K (C) E (D) D

Last Answer : (C) E

Carr-Price reaction is used to detect (A) Vitamin A (B) Vitamin D (C) Ascorbic acid (D) Vitamin E

Description : Carr-Price reaction is used to detect (A) Vitamin A (B) Vitamin D (C) Ascorbic acid (D) Vitamin E

Last Answer : (C) Ascorbic acid

Deficiency of Vitamin A causes (A) Xeropthalmia (B) Hypoprothrombinemia (C) Megaloblastic anemia (D) Pernicious anemia

Description : Deficiency of Vitamin A causes (A) Xeropthalmia (B) Hypoprothrombinemia (C) Megaloblastic anemia (D) Pernicious anemia

Last Answer : (A) Xeropthalmia

β-Carotene, precursor of vitamin A, is oxidatively cleaved by (A) β-Carotene dioxygenase (B) Oxygenase \ (C) Hydroxylase (D) Transferase

Description : β-Carotene, precursor of vitamin A, is oxidatively cleaved by (A) β-Carotene dioxygenase (B) Oxygenase \ (C) Hydroxylase (D) Transferase

Last Answer : (A) β-Carotene dioxygenase

Vitamin A or retinal is a (A) Steroid (B) Polyisoprenoid compound containing a cyclohexenyl ring (C) Benzoquinone derivative (D) 6-Hydroxychromane

Description : Vitamin A or retinal is a (A) Steroid (B) Polyisoprenoid compound containing a cyclohexenyl ring (C) Benzoquinone derivative (D) 6-Hydroxychromane

Last Answer : (B) Polyisoprenoid compound containing a cyclohexenyl ring

The normal serum concentration of 24,25- dihydroxycholecalciferol in ng/ml is (A) 8–20 (B) 25–50 (C) 1–5 (D) 60–100

Description : The normal serum concentration of 24,25- dihydroxycholecalciferol in ng/ml is (A) 8–20 (B) 25–50 (C) 1–5 (D) 60–100

Last Answer : Answer : C

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.

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

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

Last Answer : Well, I take renal multivitamins and vitamin D as prescribed by my physician, so I trust them well enough. As I said before I do not take herbal supplements.

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.

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?

Last Answer : How is a B12 vitamin a multivitamin? Is it B12 or a multivitamin?

Which vitamins do you use daily & why?

Description : Which vitamins do you use daily & why?

Last Answer : One A Day for Men. It’s a good overall multi-vitamin and it’s affordable. Has extra selenium which is good for the male reproductive system.

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?

Last Answer : Do you where glasses, If so when was the last time you got your eye’s checked out? In your case, is it that you can’t remember where you put your glasses?

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

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

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

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

Coenzyme A contains a nitrogenous base which is (A) Adenine (B) Guanine (C) Choline (D) Ethanolamine

Description : Coenzyme A contains a nitrogenous base which is (A) Adenine (B) Guanine (C) Choline (D) Ethanolamine

Last Answer : (A) Adenine