Deterioration of food (rancidity) is due to presence of (A) Cholesterol (B) Vitamin E (C) Peroxidation of lipids (D) Phenolic compounds

Deterioration of food (rancidity) is due to presence of (A) Cholesterol (B) Vitamin E (C) Peroxidation of lipids (D) Phenolic compounds
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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

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The major storage form of lipids is (A) Esterified cholesterol (B) Glycerophospholipids (C) Triglycerides (D) Sphingolipids

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Last Answer : Answer: a, b, c, d The acute-phase response is a series of homeostatic responses of the organism to tissue injury in infection and inflammation. After an inflammatory stimulus occurs, a number ... 30% to 50% of the level before injury. The reason for the decrease in production is poorly understood

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Description : Which of the following statements are true of oxidants? A. In addition to their pathophysiologic roles in inflammation, injury, and infection, oxidants also have physiologic roles. B. Oxidants may ... involved the catalytic production of superoxide anion (O 2 ) by the enzyme xanthine oxidase.

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The green colour of the leaves is due to the presence of - (1) Proteins (2) Lipids (3) Chlorophyll (4) Carbohydrates

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The green colour of the leaves is due to the presence of (1) Proteins (2) Lipids (3) Chlorophyll (4) Carbohydrates

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Sakaguchi reaction is specific for (A) Guanidine group (B) Phenolic group (C) Carboxylic group (D) None of these

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Biuret test is specific for (A) Two peptide linkage (B) Phenolic group (C) Imidazole ring (D) None of these

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Last Answer : Answer : A

One of the following has a phenolic group: (A) Histidine (B) Hydroxy lysine (C) Seratonine (D) Hydroxy proline

Description : One of the following has a phenolic group: (A) Histidine (B) Hydroxy lysine (C) Seratonine (D) Hydroxy proline

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Riboflavin deficiency causes (A) Cheilosis (B) Loss of weight (C) Mental deterioration (D) Dermatitis

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Cholesterol is an example of (a) Membrane lipids (b) Triglycerides (c) Steroids (d) Adipose tissue

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What are Lipids? (1) Lipids are monosaccharides (2) Lipids do not provide energy to cells (3) Fruits are a good source of lipids (4) Cholesterol and trans fatty acids are types of Lipids

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What are the major groups of compounds classified under lipids? -Biology

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During prolonged fastings, in what sequence are the following organic compounds used up by the body ? (a) First carbohydrates, next fats and lastly proteins (b) First fats, next carbohydrates and lastly proteins (c) First carbohydrates, next proteins and lastly lipids (d) First proteins, next lipids and lastly carbohydrates

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Which of the following compounds will not be classified as lipids? (a) Fats (b) Waxes (c) Soaps (d) Oils

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Proteins are chains of _____ that sometimes function as _____. a. monosaccharaides; energy compounds b. lipids; structural materials c. amino acids; enzymes d. disaccharides; enzymes

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Last Answer : c. amino acids; enzymes

How do the lipids differ from the other organic compounds? a. They are the largest organic compounds. b. They are nonpolar compounds. c. They have no biological role. d. They are not used for energy storage.

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Last Answer : b. They are nonpolar compounds.

Cholesterol is a precursor in the biogenesis of (A) Vitamin A (B) Vitamin D (C) Vitamin E (D) None of these

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Last Answer : Answer : B

Cholesterol is a precursor in the biogenesis of (A) Vitamin A (B) Vitamin D (C) Vitamin E (D) None of these

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Last Answer : Answer : A

Requirement of vitamin E increases with the increasing intake of (A) Calories (B) Proteins (C) PUFA (D) Cholesterol

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Last Answer : Answer : C

Value, used to assess the degree of spoilage (rancidity) of a fat or oil

Description : Value, used to assess the degree of spoilage (rancidity) of a fat or oil

Last Answer : Ans. Acid Number/Value

The main cause of rancidity in of fats and foods is the oils - (1) hydrolysis (2) oxidation (3) clarification (4) reduction

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The method of protecting iron from rusting, by coating a thin layer of Zinc is called - (1) Galvanizing (2) rancidity (3) Alloy (4) Pulverizing

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What is meant by rancidity of oils?

Description : What is meant by rancidity of oils?

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“Rancidity produced in butter can be decreased by adding quinoline to the butter”. This statements shows that --------? A. Nothing is impossible B. Quinoline is an inhibitor (Answer) C. Quinoline is a catalyst D. Quinoline is an activator

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Last Answer : B. Quinoline is an inhibitor (Answer)

What is RANCIDITY ?

Description : What is RANCIDITY ?

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Rancidity of the fatty oil can be reduced by its (A) Decoloration (B) Hydrogenation (C) Oxidation (D) Purification

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Last Answer : (B) Hydrogenation

The yellow colour of urine is due to presence of – (1) Bile (2) Lymph (3) Cholesterol (4) Urochrorne

Description : The yellow colour of urine is due to presence of – (1) Bile (2) Lymph (3) Cholesterol (4) Urochrorne

Last Answer : (4) Urochrorne Explanation: The color of normal urine is usually light yellow to amber. Generally, the greater the solute volume the deeper the color. The yellow color of urine is due to the ... normal color can be caused by certain drugs and various vegetables such as carrots, beets, and rhubarb.

The yellow colour of urine is due to presence of (1) Bile (2) Lymph (3) Cholesterol (4) Urochrome

Description : The yellow colour of urine is due to presence of (1) Bile (2) Lymph (3) Cholesterol (4) Urochrome

Last Answer : Urochrome

Steroid hormones are synthesized from (A) Adenine (B) Protein (C) Vitamin (D) Cholesterol

Description : Steroid hormones are synthesized from (A) Adenine (B) Protein (C) Vitamin (D) Cholesterol

Last Answer : Answer : D

Vitamin C is required for the synthesis of (A) Bile acids from cholesterol (B) Bile salts from bile acids (C) Vitamin D from cholesterol (D) All of these

Description : Vitamin C is required for the synthesis of (A) Bile acids from cholesterol (B) Bile salts from bile acids (C) Vitamin D from cholesterol (D) All of these

Last Answer : Answer : A

A diet containing this fat is helpful in lowering the blood cholesterol level. (A) Unsaturated (B) Saturated (C) Vitamin enriched (D) Refined

Description : A diet containing this fat is helpful in lowering the blood cholesterol level. (A) Unsaturated (B) Saturated (C) Vitamin enriched (D) Refined

Last Answer : Answer : A

Lieberman-Burchard reaction is performed to detect (A) Cholesterol (B) Glycerol (C) Fatty acid (D) Vitamin D

Description : Lieberman-Burchard reaction is performed to detect (A) Cholesterol (B) Glycerol (C) Fatty acid (D) Vitamin D

Last Answer : Answer : A

Salkowski test is performed to detect (A) Glycerol (B) Cholesterol (C) Fatty acids (D) Vitamin D

Description : Salkowski test is performed to detect (A) Glycerol (B) Cholesterol (C) Fatty acids (D) Vitamin D

Last Answer : Answer : B

The precursor of bile salts, sex hormones and vitamin D is (A) Diosgenin (B) Cholesterol (C) Campesterol (D) Ergosterol

Description : The precursor of bile salts, sex hormones and vitamin D is (A) Diosgenin (B) Cholesterol (C) Campesterol (D) Ergosterol

Last Answer : Answer : B

Why are covalent compounds poor conductors of electricity? (1) Due to the presence of charged particles. (2) Due to the absence of charged particles. (3) Due to the presence of a triple bond. (4) None of the above

Description : Why are covalent compounds poor conductors of electricity? (1) Due to the presence of charged particles. (2) Due to the absence of charged particles. (3) Due to the presence of a triple bond. (4) None of the above

Last Answer : (2) Due to the absence of charged particles. Explanation: In a covalent compound, electrons are shared between atoms. This leaves no free electrons and hence there and no charged particles. This leads to covalent compounds being poor conductors of electricity.

Plexiglass (also called Lucite) because of its high optical transparency is used for making lenses. It is chemically (A) Polymethyl methacrylate (PMMA) (B) Polytetrafluroethylene (PTFE) (C) Polycarbonates (D) Phenolic resins

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Last Answer : (A) Polymethyl methacrylate (PMMA)

Which of the following polymers shows the highest anti-tacking properties? (A) Melamine formaldehyde resin (B) Phenolic resin (C) Epoxy resin (D) Alkyd resin

Description : Which of the following polymers shows the highest anti-tacking properties? (A) Melamine formaldehyde resin (B) Phenolic resin (C) Epoxy resin (D) Alkyd resin

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Polycondensation of saturated dicarboxylic acid with polyhydric alcohol produces (A) Epoxy resin (B) Polyamide (C) Alkyd resin (D) Phenolic resin

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Last Answer : (C) Alkyd resin

Condensation polymerisation of formaldehyde with __________ does not produce phenolic resin. (A) Resorcinol (B) Phenol (C) Para-cresol (D) Melamine

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Cation exchange resins used in water treatment is made from __________ resin. (A) Urea formaldehyde (B) Epoxy (C) Amino (D) Phenolic

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