Biological activity of tocopherols has been attributed in part to their action as (A) Antioxidant (B) Anticoagulents (C) Provitamin (D) Carriers in electron transport system

Biological activity of tocopherols has been attributed in part to their action as (A) Antioxidant (B) Anticoagulents (C) Provitamin (D) Carriers in electron transport system
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The activity of tocopherols is destroyed by (A) Oxidation (B) Reduction (C) Conjugation (D) All of these

Description : The activity of tocopherols is destroyed by (A) Oxidation (B) Reduction (C) Conjugation (D) All of these

Last Answer : Answer : A

The activity of tocopherols is destroyed by (A) Commercial cooking (B) Reduction (C) Conjugation (D) All of these

Description : The activity of tocopherols is destroyed by (A) Commercial cooking (B) Reduction (C) Conjugation (D) All of these

Last Answer : Answer : A

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

Provitamin D3 is (A) Cholecalciferol (B) Ergosterol (C) 7-Dehydrocholesterol (D) Ergocaliferol

Description : Provitamin D3 is (A) Cholecalciferol (B) Ergosterol (C) 7-Dehydrocholesterol (D) Ergocaliferol

Last Answer : Answer : C

All the following statements about steroid hormones are true except (A) They are hydrophobic (B) They require carriers to transport them in circulation (C) Their receptors are intracellular (D) They require cyclic AMP as second messenger

Description : All the following statements about steroid hormones are true except (A) They are hydrophobic (B) They require carriers to transport them in circulation (C) Their receptors are intracellular (D) They require cyclic AMP as second messenger

Last Answer : Answer : D

Tocopherols prevent the oxidation of (A) Vitamin A (B) Vitamin D (C) Vitamin K (D) Vitamin C

Description : Tocopherols prevent the oxidation of (A) Vitamin A (B) Vitamin D (C) Vitamin K (D) Vitamin C

Last Answer : Answer : A

The tocopherols prevent the oxidation of (A) Vitamin A (B) Vitamin D (C) Vitamin K (D) Vitamin C

Description : The tocopherols prevent the oxidation of (A) Vitamin A (B) Vitamin D (C) Vitamin K (D) Vitamin C

Last Answer : Answer : A

The methyl groups in the aromatic nucleus of a tocopherols are (A) 2 (B) 3 (C) 4 (D) 5

Description : The methyl groups in the aromatic nucleus of a tocopherols are (A) 2 (B) 3 (C) 4 (D) 5

Last Answer : Answer : B

Some tocopherols are (A) Terpenoid in structure (B) Dional in structure (C) Isoprenoid in structure (D) Farnesyl in structure

Description : Some tocopherols are (A) Terpenoid in structure (B) Dional in structure (C) Isoprenoid in structure (D) Farnesyl in structure

Last Answer : Answer : A

Tocopherols prevent the oxidation of (A) Vitamin A (B) Vitamin D (C) Vitamin K (D) Vitamin C

Description : Tocopherols prevent the oxidation of (A) Vitamin A (B) Vitamin D (C) Vitamin K (D) Vitamin C

Last Answer : Answer : A

The Instrinisic Factor (HCl and mucoproteins) present in the gastric juice help in the absorption of (A) Vitamin B2 (B) Tocopherols (C) Folic acid (D) Vitmain B12

Description : The Instrinisic Factor (HCl and mucoproteins) present in the gastric juice help in the absorption of (A) Vitamin B2 (B) Tocopherols (C) Folic acid (D) Vitmain B12

Last Answer : Answer : D

Rancidity of butter is prevented by the addition of (A) Vitamin D (B) Tocopherols (C) Presence of priotin (D) Presence of ‘Cu’ FATS AND FATTY ACID METABOLISM 97

Description : Rancidity of butter is prevented by the addition of (A) Vitamin D (B) Tocopherols (C) Presence of priotin (D) Presence of ‘Cu’ FATS AND FATTY ACID METABOLISM 97

Last Answer : Answer : B

Features of atorvastatin include the following: A. Dose to dose most potent HMG-CoA reductase inhibitor B. Higher ceiling of LDL-cholesterol lowering action than lovastatin C. Antioxidant property D. All of the above

Description : Features of atorvastatin include the following: A. Dose to dose most potent HMG-CoA reductase inhibitor B. Higher ceiling of LDL-cholesterol lowering action than lovastatin C. Antioxidant property D. All of the above

Last Answer : D. All of the above

The electron transport chain within the inner mitochondrial membrane creates a gradient of ____________ across the inner membrane which is utilized to drive the activity of ATP synthase and the generation of ATP.

Description : The electron transport chain within the inner mitochondrial membrane creates a gradient of ____________ across the inner membrane which is utilized to drive the activity of ATP synthase and the generation of ATP.

Last Answer : Hydrogen (H+ ions) or protons

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

A nonspecific intracellular antioxidant is (A) Chromium (B) Magnesium (C) Selenium (D) Nickel

Description : A nonspecific intracellular antioxidant is (A) Chromium (B) Magnesium (C) Selenium (D) Nickel

Last Answer : Answer : C

Which is a pro vitamin or vitamin that has antioxidant properties? (A) Beta carotene (B) Vitamin E (C) Vitamin C (D) Vitamin D

Description : Which is a pro vitamin or vitamin that has antioxidant properties? (A) Beta carotene (B) Vitamin E (C) Vitamin C (D) Vitamin D

Last Answer : Answer : B

Which of the vitamins is a potent antioxidant of Vitamin A? (A) Vitamin C (B) Vitamin E (C) Vitamin K (D) Vitamin D

Description : Which of the vitamins is a potent antioxidant of Vitamin A? (A) Vitamin C (B) Vitamin E (C) Vitamin K (D) Vitamin D

Last Answer : Answer : B

This Vitamin acts as antioxidant: (A) Vitamin A (B) Vitamin D (C) Vitamin E (D) Vitamin K

Description : This Vitamin acts as antioxidant: (A) Vitamin A (B) Vitamin D (C) Vitamin E (D) Vitamin K

Last Answer : Answer : C

This vitamin is a potent antioxidant of vitamin A: (A) Vitamin C (B) Vitamin E (C) Vitamin K (D) Vitamin D

Description : This vitamin is a potent antioxidant of vitamin A: (A) Vitamin C (B) Vitamin E (C) Vitamin K (D) Vitamin D

Last Answer : Answer : B

This vitamin acts as antioxidant. (A) Vitamin A (B) Vitamin D (C) Vitamin E (D) Vitamin K

Description : This vitamin acts as antioxidant. (A) Vitamin A (B) Vitamin D (C) Vitamin E (D) Vitamin K

Last Answer : Answer : B

The most important natural antioxidant is (A) Vitamin D (B) Vitamin E (C) Vitamin B12 (D) Vitamin K

Description : The most important natural antioxidant is (A) Vitamin D (B) Vitamin E (C) Vitamin B12 (D) Vitamin K

Last Answer : Answer : B

What molecules are the main electron carriers of the Krebs cycle?

Description : What molecules are the main electron carriers of the Krebs cycle?

Last Answer : NADH and FADH2

The theory of interionic attraction attributed to Debye and Hückel: w) was disproved by Arrhenius x) accounts quantitatively for the attraction between ions in dilute aqueous solutions y) does not account for kindered "ion-activity" z) accounts for intra-molecular polar bonds

Description : The theory of interionic attraction attributed to Debye and Hückel: w) was disproved by Arrhenius x) accounts quantitatively for the attraction between ions in dilute aqueous solutions y) does not account for kindered "ion-activity" z) accounts for intra-molecular polar bonds

Last Answer : ANSWER: X -- ACCOUNTS QUANTITATIVELY FOR THE ATTRACTION BETWEEN IONS IN DILUTE AQUEOUS SOLUTIONS

Which transmembrane movement involves carriers? a. facilitated diffusion b. active transport c. both d. none of them

Description : Which transmembrane movement involves carriers? a. facilitated diffusion b. active transport c. both d. none of them

Last Answer : both

Epileptiform convulsion in human infants have been attributed to the deficiency of the vitamin (A) B1 (B) B2 (C) B6 (D) B12

Description : Epileptiform convulsion in human infants have been attributed to the deficiency of the vitamin (A) B1 (B) B2 (C) B6 (D) B12

Last Answer : Answer : C

In countries with a negative natural increase rate such as former states of the Soviet Union the high crude death rate has been attributed in part to?

Description : In countries with a negative natural increase rate such as former states of the Soviet Union the high crude death rate has been attributed in part to?

Last Answer : What is the answer ?

Catalyst carriers (A) Have very high selectivity (B) Increase the activity of a catalyst (C) Provide large surface area with a small amount of active material (D) Inhibit catalyst poisoning

Description : Catalyst carriers (A) Have very high selectivity (B) Increase the activity of a catalyst (C) Provide large surface area with a small amount of active material (D) Inhibit catalyst poisoning

Last Answer : (C) Provide large surface area with a small amount of active material

Biological activity of gastrin is present in the (A) Four N-terminal amino acids (B) Four C-terminal amino acids (C) Five N-terminal amino acids (D) Five C-terminal amino acids

Description : Biological activity of gastrin is present in the (A) Four N-terminal amino acids (B) Four C-terminal amino acids (C) Five N-terminal amino acids (D) Five C-terminal amino acids

Last Answer : Answer : B

Amino acid residues which are essential for the biological activity of PTH are (A) N-terminal 34 amino acids (B) N-terminal 50 amino acids (C) C-terminal 34 amino acids (D) C-terminal 50 amino acids

Description : Amino acid residues which are essential for the biological activity of PTH are (A) N-terminal 34 amino acids (B) N-terminal 50 amino acids (C) C-terminal 34 amino acids (D) C-terminal 50 amino acids

Last Answer : Answer : A

Biological activity of ACTH requires (A) 10-N-terminal amino acid (B) 24-N-terminal amino acid (C) 24-C-terminal amino acid (D) 15-C-terminal amino acid

Description : Biological activity of ACTH requires (A) 10-N-terminal amino acid (B) 24-N-terminal amino acid (C) 24-C-terminal amino acid (D) 15-C-terminal amino acid

Last Answer : Answer : B

One international unit (I.U) of vitamin D is defined as the biological activity of (A) 0.025 µg of cholecalciferol (B) 0.025 µg of 7-dehydrocholecalciferol (C) 0.025 µg of ergosterol (D) 0.025 µg of ergocalciferol VITAMINS 113

Description : One international unit (I.U) of vitamin D is defined as the biological activity of (A) 0.025 µg of cholecalciferol (B) 0.025 µg of 7-dehydrocholecalciferol (C) 0.025 µg of ergosterol (D) 0.025 µg of ergocalciferol VITAMINS 113

Last Answer : Answer : A

All the following compounds are members of the electron transport chain except (A) Ubiquinone (B) Carnitine (C) NAD (D) FAD

Description : All the following compounds are members of the electron transport chain except (A) Ubiquinone (B) Carnitine (C) NAD (D) FAD

Last Answer : Answer : B

An uncoupler of oxidative phosphorylation such as dinitrophenol (A) Inhibits electron transport and ATP synthesis (B) Allow electron transport to proceed without ATP synthesis (C) Inhibits electron transport without impairment of ATP synthesis (D) Specially inhibits cytochrome b

Description : An uncoupler of oxidative phosphorylation such as dinitrophenol (A) Inhibits electron transport and ATP synthesis (B) Allow electron transport to proceed without ATP synthesis (C) Inhibits electron transport without impairment of ATP synthesis (D) Specially inhibits cytochrome b

Last Answer : B

The transport of a pair of electrons from NADH to O2 via the electron transport chain produces (A) –52,580 cal (B) –50,580 cal (C) 21,900 cal (D) +52,580 cal

Description : The transport of a pair of electrons from NADH to O2 via the electron transport chain produces (A) –52,580 cal (B) –50,580 cal (C) 21,900 cal (D) +52,580 cal

Last Answer : D

Electron transport and phosphorylation can be uncoupled by compounds that increase the permeability of the inner mitochondrial membrane to (A) Electrons (B) Protons (C) Uncouplers (D) All of these

Description : Electron transport and phosphorylation can be uncoupled by compounds that increase the permeability of the inner mitochondrial membrane to (A) Electrons (B) Protons (C) Uncouplers (D) All of these

Last Answer : B

Enzymes catalyzing electron transport are present mainly in the (A) Ribosomes (B) Endoplasmic reticulum (C) Lysosomes (D) Inner mitochondrial membrane

Description : Enzymes catalyzing electron transport are present mainly in the (A) Ribosomes (B) Endoplasmic reticulum (C) Lysosomes (D) Inner mitochondrial membrane

Last Answer : D

Hypolipidemic drugs reduce serum cholesterol and triacylglycerol. The effect of clofibrate is attributed to (A) Block in absorption from G.I.T. (B) Decrease in secretion of triacylglycerol and cholesterol containing VLDL by liver (C) Block in the reabsorption of bile acids (D) Decreased synthesis of cholesterol

Description : Hypolipidemic drugs reduce serum cholesterol and triacylglycerol. The effect of clofibrate is attributed to (A) Block in absorption from G.I.T. (B) Decrease in secretion of triacylglycerol and cholesterol ... by liver (C) Block in the reabsorption of bile acids (D) Decreased synthesis of cholesterol

Last Answer : Answer : B

Many blue-green algae occur in thermal springs (hot-water springs). The temperature tolerance of these algae have been attributed to their (a) mitochondrial structure (b) importance of homopolar bonds in their proteins (c) cell wall structure (d) modern cell organization.

Description : Many blue-green algae occur in thermal springs (hot-water springs). The temperature tolerance of these algae have been attributed to their (a) mitochondrial structure (b) importance of homopolar bonds in their proteins (c) cell wall structure (d) modern cell organization.

Last Answer : (c) cell wall structure

not a contrivance to install any particular party in power as has been done in some countries. Who should be in power is left to be determined by the people, as it must be, if the system is to satisfy thetest of democracy'. The above passage from Constituent Assembly debates is attributed to - (1) Pandit Jawaharlal Nehru (2) Dr B R Ambedkar (3) Maulana Abdul Kalam Azad (4) Acharya J B Kriplani

Description : not a contrivance to install any particular party in power as has been done in some countries. Who should be in power is left to be determined by the people, as it must be, if the system is to ... Pandit Jawaharlal Nehru (2) Dr B R Ambedkar (3) Maulana Abdul Kalam Azad (4) Acharya J B Kriplani

Last Answer : (2) Dr B R Ambedkar Explanation: On 29 August 1947, the Drafting Committee was appointed with Dr B. R. Ambedkar as the Chairman along with six other members assisted by a constitutional advisor ... 4 November 1947. This is Ambedkar's second argument rested on the legitimacy of the democratic system.

What should i look for before purchasing an antioxidant supplement?

Description : What should i look for before purchasing an antioxidant supplement?

Last Answer : Before purchasing an antioxidant supplement, you should find out whether the supplement is FDA approved. Another thing you should look for is previous users of the supplements.

What are the benefits of adding an antioxidant supplement to your diet?

Description : What are the benefits of adding an antioxidant supplement to your diet?

Last Answer : Antioxidants destroy harmful agents called free radicals, which cause the effects of aging.

Honey that has high concentration of sugar does not decay because (1) Bacteria cannot survive in an active state as it is totally deprived of oxygen (2) It contains natural antioxidant that prevents bacterial attack (3) Bacteria cannot survive in an active state in a solution of high osmotic strength as water is drawn out (4) None of these

Description : Honey that has high concentration of sugar does not decay because (1) Bacteria cannot survive in an active state as it is totally deprived of oxygen (2) It contains natural antioxidant that prevents bacterial ... state in a solution of high osmotic strength as water is drawn out (4) None of these

Last Answer : (3) Bacteria cannot survive in an active state in a solution of high osmotic strength as water is drawn out Explanation: The reason why bacteria does not grow in high concentration of sugar ... measure of unbound, free water molecules in the food that is necessary for microbial survival and growth.

Tetra ethyle lead (TEL) is - (1) a catalyst in burning fossil fuel (2) an antioxidant (3) areductant (4) an antiknock compound

Description : Tetra ethyle lead (TEL) is - (1) a catalyst in burning fossil fuel (2) an antioxidant (3) areductant (4) an antiknock compound

Last Answer : (4) an antiknock compound Explanation: Tetraethyl lead was extensively used as an additive to gasoline, wherein it served as an effective antiknock agent and prevented exhaust valve and seat wear. ... needed. Typical formulations called for 1 part of prepared TEL to 1260 parts untreated gasoline.

Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxidant used in rubber? (A) Carbon (B) Alkylated diphenyl amine (C) Thiokol (D) Magnesium

Description : Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxidant used in rubber? (A) Carbon (B) Alkylated diphenyl amine (C) Thiokol (D) Magnesium

Last Answer : (B) Alkylated diphenyl amine

Phenols are added in gasoline to (A) Improve the octane number(B) Act as an antioxidant(C) Reduce its viscosity(D) Increase its pour point

Description : Phenols are added in gasoline to (A) Improve the octane number (B) Act as an antioxidant (C) Reduce its viscosity (D) Increase its pour point

Last Answer : (B) Act as an antioxidant

The role of borax in cold creams is (A) anti-microbial agent (B) to provide fine particles to polish skin (C) in-situ emulsifier (D) antioxidant

Description : The role of borax in cold creams is (A) anti-microbial agent (B) to provide fine particles to polish skin (C) in-situ emulsifier (D) antioxidant

Last Answer : (A) anti-microbial agent

Select the β-adrenergic blocker that has additional α1 blocking, vasodilator and antioxidant properties: A. Carvedilol B. Celiprolol C. Acebutolol D. Metoprolol

Description : Select the β-adrenergic blocker that has additional α1 blocking, vasodilator and antioxidant properties: A. Carvedilol B. Celiprolol C. Acebutolol D. Metoprolol

Last Answer : A. Carvedilol

Select the β -adrenergic blocker that has additional α 1 blocking, vasodilator and antioxidant properties: A. Carvedilol B. Celiprolol C. Acebutolol D. Metoprolol

Description : Select the β -adrenergic blocker that has additional α 1 blocking, vasodilator and antioxidant properties: A. Carvedilol B. Celiprolol C. Acebutolol D. Metoprolol

Last Answer : A. Carvedilol

Best Natural Antioxidant Spice

Description : Best Natural Antioxidant Spice

Last Answer : Best Natural Antioxidant Spice - Cloves Researchers have identified cloves (Syzygium aromaticum) as the best natural antioxidant spice, because they contain high levels of phenolic compounds, as well as ... used in a Mediterranean diet . Flavour and Fragrance Journal 25, 13-19, February 2010.