Dicoumarol is antagonist to (A) Riboflavin (B) Retinol (C) Menadione (D) Tocopherol

Dicoumarol is antagonist to (A) Riboflavin (B) Retinol (C) Menadione (D) Tocopherol
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Answer : C
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Fat soluble vitamins are – (1) Tocopherol, Niacin, Cyanocobalamin (2) Calciferol, Carotene, Tocopherol (3) Ascorbic acid, Calciferol, Riboflavin (4) Thiamine, Carotene, Biotin

Description : Fat soluble vitamins are – (1) Tocopherol, Niacin, Cyanocobalamin (2) Calciferol, Carotene, Tocopherol (3) Ascorbic acid, Calciferol, Riboflavin (4) Thiamine, Carotene, Biotin

Last Answer : (2) Calciferol, Carotene, Tocopherol Explanation: Calciferol (Vitamin D): Tocopherols and tocotrienols (Vitamin E); Phylloquinone, menaquinones (Vitamin K); and Retinol, retinal, and four carotenoids including beta carotene (Vitamin Al are all fat soluble vitamins.

The vitamin most readily destroyed by heat is – (1) Riboflavin (2) Ascorbic acid (3) Tocopherol (4) Thiamine

Description : The vitamin most readily destroyed by heat is – (1) Riboflavin (2) Ascorbic acid (3) Tocopherol (4) Thiamine

Last Answer : (2) Ascorbic acid Explanation: Vitamin C (Ascorbic Acid) is the most easily destroyed vitamin. It is destroyed by oxygen, heat (above 70 degrees) and it leaks out into the cooking water because ... until we need them. Steaming and stir-frying are two methods that help conserve vitamin C content.

What is the chemical name of vitamin E? (1) Calciferol (2) Tocopherol (3) Riboflavin (4) Phylloquinone

Description : What is the chemical name of vitamin E? (1) Calciferol (2) Tocopherol (3) Riboflavin (4) Phylloquinone

Last Answer : (2) Tocopherol Explanation: Of the many different forms of vitamin E, gamma-tocopherol (γ-tocopherol) is the most common form found in the North American diet, but alpha-tocopherol (αtocopherol) is the most biologically active.

What is the chemical name of vitamin E? (1) Calciferol (2) Tocopherol (3) Riboflavin (4) Phylloquinone

Description : What is the chemical name of vitamin E? (1) Calciferol (2) Tocopherol (3) Riboflavin (4) Phylloquinone

Last Answer : (2) Tocopherol Explanation: Of the many different forms of vitamin E, gamma-tocopherol (γ-tocopherol) is the most common form found in the North American diet, but alpha-tocopherol (αtocopherol) is the most biologically active.

Pellagra disease is caused by the deficiency of (a) niacin (b) tocopherol (c) riboflavin (d) folic acid

Description : Pellagra disease is caused by the deficiency of (a) niacin (b) tocopherol (c) riboflavin (d) folic acid

Last Answer : (a) niacin

Which one of the following is correctly matched? (a) Vitamin E - Tocopherol (b) Vitamin D - Riboflavin (c) Vitamin B - Calciferol (d) Vitamin A - Thiamine

Description : Which one of the following is correctly matched? (a) Vitamin E - Tocopherol (b) Vitamin D - Riboflavin (c) Vitamin B - Calciferol (d) Vitamin A - Thiamine

Last Answer : (a) Vitamin E - Tocopherol

Which of the following vitamin does not have coenzyme activity (a) Folic Acid (b) Riboflavin (c) Biotin (d) Tocopherol (Vitamin E)

Description : Which of the following vitamin does not have coenzyme activity (a) Folic Acid (b) Riboflavin (c) Biotin (d) Tocopherol (Vitamin E)

Last Answer : (d) Tocopherol (Vitamin E)

Fat soluble vitamins are (1) Tocopherol, Niacin, Cyanocobalamin (2) Calciferol, Carotene, Tocopherol (3) Ascorbic acid, Calciferol, Riboflavin (4) Thiamine, Carotene, Biotin

Description : Fat soluble vitamins are (1) Tocopherol, Niacin, Cyanocobalamin (2) Calciferol, Carotene, Tocopherol (3) Ascorbic acid, Calciferol, Riboflavin (4) Thiamine, Carotene, Biotin

Last Answer : Calciferol, Carotene, Tocopherol

The vitamin most readily destroyed by heat is (1) Riboflavin (2) Ascorbic acid (3) Tocopherol (4) Thiamine

Description : The vitamin most readily destroyed by heat is (1) Riboflavin (2) Ascorbic acid (3) Tocopherol (4) Thiamine

Last Answer : Ascorbic acid

Which of the following is known as Vitamin B1? (1) Retinol (2) Thiamin (3) Riboflavin (4) Ascorbic Acid

Description : Which of the following is known as Vitamin B1? (1) Retinol (2) Thiamin (3) Riboflavin (4) Ascorbic Acid

Last Answer : (2) Thiamin Explanation: Thiamine also called vitamin B 1, named as the "thio-vitamine" ("sulfurcontaining vitamin") is a watersoluble vitamin of the B complex. First named aneurin for ... the generic descriptor name vitamin B 1. Its phosphate derivatives are involved in many cellular processes.

Which of the following is known as Vitamin B1 ? (1) Retinol (2) Thiamin (3) Riboflavin (4) Ascorbic Acid

Description : Which of the following is known as Vitamin B1 ? (1) Retinol (2) Thiamin (3) Riboflavin (4) Ascorbic Acid

Last Answer : Thiamin

A synthetic form of vitamin K is (A) Menadione (B) Farnoquinone (C) Phylloquinone (D) None of these

Description : A synthetic form of vitamin K is (A) Menadione (B) Farnoquinone (C) Phylloquinone (D) None of these

Last Answer : Answer : A

A water soluble form of vitamin K is (A) Phylloquinone (B) Farnoquinone (C) Menadione (D) None of these

Description : A water soluble form of vitamin K is (A) Phylloquinone (B) Farnoquinone (C) Menadione (D) None of these

Last Answer : Answer : C

Intestinal bacteria can synthesise (A) Phyllogquinone (B) Farnoquinone (C) Both (A) and (B) (D) Menadione VITAMINS 123

Description : Intestinal bacteria can synthesise (A) Phyllogquinone (B) Farnoquinone (C) Both (A) and (B) (D) Menadione VITAMINS 123

Last Answer : Answer : B

The anti-vitamin for para amino benzoic acid is (A) Aminopterin (B) Dicoumarol (C) INH (D) Sulphanomides

Description : The anti-vitamin for para amino benzoic acid is (A) Aminopterin (B) Dicoumarol (C) INH (D) Sulphanomides

Last Answer : Answer : D

An anti-vitamin for folic acid is (A) Aminopterin (B) Dicoumarol (C) Pyrithiamine (D) Isoniazid

Description : An anti-vitamin for folic acid is (A) Aminopterin (B) Dicoumarol (C) Pyrithiamine (D) Isoniazid

Last Answer : Answer : A

Prothrombin time is prolonged by administering (A) Vitamin K (B) Dicoumarol (C) Calcium (D) Prothrombin

Description : Prothrombin time is prolonged by administering (A) Vitamin K (B) Dicoumarol (C) Calcium (D) Prothrombin

Last Answer : Answer : B

The anti-vitamin for para amino benzoic acid is (A) Aminopterrin (B) Dicoumarol (C) INH (D) Sulphonamides

Description : The anti-vitamin for para amino benzoic acid is (A) Aminopterrin (B) Dicoumarol (C) INH (D) Sulphonamides

Last Answer : Answer : D

An anti-vitamin for folic acid is (A) Amethoptesin (B) Dicoumarol (C) Pyrithoamine (D) Isoniazid

Description : An anti-vitamin for folic acid is (A) Amethoptesin (B) Dicoumarol (C) Pyrithoamine (D) Isoniazid

Last Answer : Answer : A

The anti vitamin for para aminobenzoic acid is (A) Aminopterin (B) Dicoumarol (C) Sulphonamides (D) Thiopanic acid

Description : The anti vitamin for para aminobenzoic acid is (A) Aminopterin (B) Dicoumarol (C) Sulphonamides (D) Thiopanic acid

Last Answer : Answer : C

Prothrombin time is prolonged by administering (A) Vitamin K (B) Dicoumarol (C) Calcium (D) Prothrombin

Description : Prothrombin time is prolonged by administering (A) Vitamin K (B) Dicoumarol (C) Calcium (D) Prothrombin

Last Answer : Answer : A

A trace element having antioxidant function is (A) Selenium (B) Tocopherol (C) Chromium (D) Molybdenum

Description : A trace element having antioxidant function is (A) Selenium (B) Tocopherol (C) Chromium (D) Molybdenum

Last Answer : Answer : A

Which of the following statements regarding Vitamin A is true? (A) It is not an essential Vitamin (B) It is related to tocopherol (C) It is a component of rhodopsin (D) It is also known as Opsin

Description : Which of the following statements regarding Vitamin A is true? (A) It is not an essential Vitamin (B) It is related to tocopherol (C) It is a component of rhodopsin (D) It is also known as Opsin

Last Answer : Answer : C

Unpleasant odours and taste in a fat (rancidity) can be delayed or prevented by the addition of (A) Lead (B) Copper (C) Tocopherol (D) Ergosterol

Description : Unpleasant odours and taste in a fat (rancidity) can be delayed or prevented by the addition of (A) Lead (B) Copper (C) Tocopherol (D) Ergosterol

Last Answer : Answer : C

Menadione (vitamin K3) can produce kernicterus in neonates by: A. Inducing haemolysis B. Inhibiting glucuronidation of bilirubin C. Displacing plasma protein bound bilirubin D. Both ‘A’ and ‘B’ are correct

Description : Menadione (vitamin K3) can produce kernicterus in neonates by: A. Inducing haemolysis B. Inhibiting glucuronidation of bilirubin C. Displacing plasma protein bound bilirubin D. Both ‘A’ and ‘B’ are correct

Last Answer : D. Both ‘A’ and ‘B’ are correct

Choose the preparation(s) of vitamin K that should not be injected in the newborn: A. Phytonadione B. Menadione C. Menadione sod.diphosphate D. Both ‘B’ and ‘C’

Description : Choose the preparation(s) of vitamin K that should not be injected in the newborn: A. Phytonadione B. Menadione C. Menadione sod.diphosphate D. Both ‘B’ and ‘C’

Last Answer : D. Both ‘B’ and ‘C’

The following form of vitamin A is used in the visual cycle: (A) Retinol (B) Retinoic acid (C) Retinaldehyde (D) Retinyl acetate

Description : The following form of vitamin A is used in the visual cycle: (A) Retinol (B) Retinoic acid (C) Retinaldehyde (D) Retinyl acetate

Last Answer : Answer : C

Retina contains this photo sensitive pigment. (A) Rhodopsin (B) Opsin (C) Retinol (D) Malanin

Description : Retina contains this photo sensitive pigment. (A) Rhodopsin (B) Opsin (C) Retinol (D) Malanin

Last Answer : Answer : A

Retinol and Retinol binding protein are bound with this protein: (A) Albumin (B) Prealbumin (C) α-globulin (D) β-globulin

Description : Retinol and Retinol binding protein are bound with this protein: (A) Albumin (B) Prealbumin (C) α-globulin (D) β-globulin

Last Answer : Answer : B

Retina contains this photosensitive pigment: (A) Rhodopsin (B) Opsin (C) Retinol (D) Melanin

Description : Retina contains this photosensitive pigment: (A) Rhodopsin (B) Opsin (C) Retinol (D) Melanin

Last Answer : Answer : A

Retinol and retinol –binding protein (RBP) bound with this protein: (A) Albumin (B) Prealbumin (C) α2-globulin (D) β-globulin

Description : Retinol and retinol –binding protein (RBP) bound with this protein: (A) Albumin (B) Prealbumin (C) α2-globulin (D) β-globulin

Last Answer : Answer : B

Dictary deficiency of this vitamin leads to night blindness: (A) Retinol (B) Niacin (C) Ascorbic acid (D) Cholecalciferol VITAMINS 125

Description : Dictary deficiency of this vitamin leads to night blindness: (A) Retinol (B) Niacin (C) Ascorbic acid (D) Cholecalciferol VITAMINS 125

Last Answer : Answer : A

The non-protein part of rhodopsin is (A) Retinal (B) Retinol (C) Carotene (D) Repsin

Description : The non-protein part of rhodopsin is (A) Retinal (B) Retinol (C) Carotene (D) Repsin

Last Answer : Answer : A

Retinol is transported to the blood as retinol attached to (A) α1-globulin (B) α2-globulin (C) β-globulin (D) γ-globulin

Description : Retinol is transported to the blood as retinol attached to (A) α1-globulin (B) α2-globulin (C) β-globulin (D) γ-globulin

Last Answer : Answer : A

Retinal is reduced to retinol by retinene reductase in presence of the coenzyme (A) NAD+ (B) NADP+ (C) NADH + H+ (D) NADPH + H+

Description : Retinal is reduced to retinol by retinene reductase in presence of the coenzyme (A) NAD+ (B) NADP+ (C) NADH + H+ (D) NADPH + H+

Last Answer : Answer : C

One international Unit of vitamin A is the activity present in (A) 0.3 µg of β-Carotene (B) 0.3 µg of retinol (C) 0.6 µg of retinoic acid (D) All of these

Description : One international Unit of vitamin A is the activity present in (A) 0.3 µg of β-Carotene (B) 0.3 µg of retinol (C) 0.6 µg of retinoic acid (D) All of these

Last Answer : Answer : B

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 : Answer : A

Retinol isomerase is present in (A) Retina (B) Liver (C) Both (A) and (B) (D) None of these

Description : Retinol isomerase is present in (A) Retina (B) Liver (C) Both (A) and (B) (D) None of these

Last Answer : Answer : B

Conversion of all-trans-retinal into alltrans-retinol requires (A) NAD (B) NADH (C) NADP (D) NADPH

Description : Conversion of all-trans-retinal into alltrans-retinol requires (A) NAD (B) NADH (C) NADP (D) NADPH

Last Answer : Answer : D

Both Wernicke’s disease and beriberi can be reversed by administrating (A) Retinol (B) Thiamin (C) Pyridoxine (D) Vitamin B12

Description : Both Wernicke’s disease and beriberi can be reversed by administrating (A) Retinol (B) Thiamin (C) Pyridoxine (D) Vitamin B12

Last Answer : Answer : B

On exposure to light rhodopsin forms (A) All trans-retinal (B) Cis-retinal (C) Retinol (D) Retinoic acid

Description : On exposure to light rhodopsin forms (A) All trans-retinal (B) Cis-retinal (C) Retinol (D) Retinoic acid

Last Answer : Answer : A

Retinol is transported in blood bound to (A) Aporetinol binding protein (B) α2-Globulin (C) β-Globulin (D) Albumin

Description : Retinol is transported in blood bound to (A) Aporetinol binding protein (B) α2-Globulin (C) β-Globulin (D) Albumin

Last Answer : Answer : A

Retinol and retinal are interconverted requiring dehydrogenase or reductase in the presence of (A) NAD or NADP (B) NADH + H+ (C) NADPH (D) FAD

Description : Retinol and retinal are interconverted requiring dehydrogenase or reductase in the presence of (A) NAD or NADP (B) NADH + H+ (C) NADPH (D) FAD

Last Answer : Answer : A

Retinal is reduced to retinol in intestinal mucosa by a specific retinaldehyde reductase utilising (A) NADPH + H+ (B) FAD (C) NAD (D) NADH + H+

Description : Retinal is reduced to retinol in intestinal mucosa by a specific retinaldehyde reductase utilising (A) NADPH + H+ (B) FAD (C) NAD (D) NADH + H+

Last Answer : Answer : A

Non-protein part of rhodopsin is (A) Retinal (B) Retinol (C) Carotene (D) Repsin

Description : Non-protein part of rhodopsin is (A) Retinal (B) Retinol (C) Carotene (D) Repsin

Last Answer : Answer : A

Milk is poor in (A) Cholesterol (B) Retinol (C) Calcium (D) Iron

Description : Milk is poor in (A) Cholesterol (B) Retinol (C) Calcium (D) Iron

Last Answer : Answer : D

Milk is a good source of (A) Proteins, calcium and iron (B) Proteins, calcium and ascorbic acid (C) Proteins, lactose and retinol (D) Proteins, lactose and essential fatty acids

Description : Milk is a good source of (A) Proteins, calcium and iron (B) Proteins, calcium and ascorbic acid (C) Proteins, lactose and retinol (D) Proteins, lactose and essential fatty acids

Last Answer : Answer : C

What is dicoumarol? How does this substance act in the clotting process and what are some examples of its toxicity?

Description : What is dicoumarol? How does this substance act in the clotting process and what are some examples of its toxicity?

Last Answer : Dicoumarol is an anticoagulant drug. Due to its molecular structure dicoumarol competes with vitamin K for the binding to substrates blocking the formation of clotting factors and interrupting ... administered during pregnancy since they pass the placental barrier and can cause fetal hemorrhages.

A patient on dicoumarol treatment needs extraction. Which of the following is MOST valuable in evaluating surgical risks: A. Clotting time B. Bleeding time C. Prothrombin time D. Sedimentation rate E. Complete blood cell count

Description : A patient on dicoumarol treatment needs extraction. Which of the following is MOST valuable in evaluating surgical risks: A. Clotting time B. Bleeding time C. Prothrombin time D. Sedimentation rate E. Complete blood cell count

Last Answer : C. Prothrombin time

A diuretic which is an aldosterone antagonist is (A) Spironolactone (B) Ethacrynic acid (C) Acetazolamide (D) Chlorothiazide

Description : A diuretic which is an aldosterone antagonist is (A) Spironolactone (B) Ethacrynic acid (C) Acetazolamide (D) Chlorothiazide

Last Answer : Answer : A