Which of the following statements is not true about triacylglycerols? (a) When solids and semisolids at room temperature, they are called fats. (b) When liquids at room temperature, they are called oils. (c) When hydrolyzed, they produce glycerol and carboxylate salts. (d) Triacylglycerols with low melting points are composed of saturated fatty acids, causing them to be liquids at room temperature

Which of the following statements is not true about triacylglycerols?
(a) When solids and semisolids at room temperature, they are called fats.
(b) When liquids at room temperature, they are called oils.
(c) When hydrolyzed, they produce glycerol and carboxylate salts.
(d) Triacylglycerols with low melting points are composed of saturated fatty
acids, causing them to be liquids at room temperature
by

1 Answer

Answer :

Triacylglycerols with low melting points are composed of saturated fatty
acids, causing them to be liquids at room temperature
by

Related questions

Bile, an emulsifier liquid, is made by the liver and later stored within the gallbladder and released in the duodenum. Bile is composed of bile salts, cholesterol and bile pigments. Bile salts are detergents, amphiphilic molecules, i.e., molecules with a polar water-soluble portion and a non-polar fat-soluble portion. This feature allows bile salts to enclose fats inside water-soluble micelles in a process called emulsification for them to be in contact with intestinal lipases, enzymes that break fats into simpler fatty acids and glycerol. Digestion System - Image Diversity: gallbladder

Description : Bile, an emulsifier liquid, is made by the liver and later stored within the gallbladder and released in the duodenum. Bile is composed of bile salts, cholesterol and bile pigments. ... enzymes that break fats into simpler fatty acids and glycerol. Digestion System - Image Diversity: gallbladder

Last Answer : What is the adnexal organ of the digestive system in which bile is stored?

Fats differ from waxes in that fats have : (a) More unsaturation (b) Higher melting points (c) A glycerol backbone (d) Longer fatty acids

Description : Fats differ from waxes in that fats have : (a) More unsaturation (b) Higher melting points (c) A glycerol backbone (d) Longer fatty acids

Last Answer : A glycerol backbone

Which of the following statements is not true about phospholipids? (a) They are similar to triacylglycerols except that the middle OH group of glycerol reacts with a phosphate rather than with a fatty acid. (b) They constitute a major component of cell membranes. (c) Phosphatidic acid is a phospholipid. (d) The C-2 carbon of glycerol in phosphoacylglycerols has the R configuration

Description : Which of the following statements is not true about phospholipids? (a) They are similar to triacylglycerols except that the middle OH group of glycerol reacts with a phosphate rather than with a ... is a phospholipid. (d) The C-2 carbon of glycerol in phosphoacylglycerols has the R configuration

Last Answer : They are similar to triacylglycerols except that the middle OH group of glycerol reacts with a phosphate rather than with a fatty acid

What is true of saturated fatty acids They have the maximum number of hydrogen atoms. They are liquids at room temperature. They have longer molecules with a bent shape. They make up most vegetable fa?

Description : What is true of saturated fatty acids They have the maximum number of hydrogen atoms. They are liquids at room temperature. They have longer molecules with a bent shape. They make up most vegetable fa?

Last Answer : What is the answer ?

Drying oils contain a fairly large proportion of – (1) fats (2) proteins (3) saturated fatty acids (4) unsaturated fatty acids

Description : Drying oils contain a fairly large proportion of – (1) fats (2) proteins (3) saturated fatty acids (4) unsaturated fatty acids

Last Answer : (4) unsaturated fatty acids Explanation: They contain a high percentage of "polyunsaturates" (polyunsaturated fatty acids). Most drying oils owe their drying properties to the presence of a large percentage of linolenic acid (which derives its name from "linseed"), which is highly unsaturated.

Drying oils contain a fairly large proportion of (1) fats (2) proteins (3) saturated fatty acids (4) unsaturated fatty acids

Description : Drying oils contain a fairly large proportion of (1) fats (2) proteins (3) saturated fatty acids (4) unsaturated fatty acids

Last Answer : unsaturated fatty acids

Fats as compared to oils have (A) More unsaturated glycerides of fatty acids (B) Less unsaturated glycerides of fatty acids (C) Much higher reactivity to oxygen (D) Lower melting point

Description : Fats as compared to oils have (A) More unsaturated glycerides of fatty acids (B) Less unsaturated glycerides of fatty acids (C) Much higher reactivity to oxygen (D) Lower melting point

Last Answer : (B) Less unsaturated glycerides of fatty acids

Triglycerides which are solids or semisolids at room temperature are called __________. (a) oil (b) fat (c) steroid (d) cholesterol

Description : Triglycerides which are solids or semisolids at room temperature are called __________. (a) oil (b) fat (c) steroid (d) cholesterol

Last Answer : fat

What are soaps? (1) Salts of silicates (2) Ester of heavy fatty acids (3) Sodium or potassium salts of heavier fatty acids (4) Mixture of glycerol and alcohol

Description : What are soaps? (1) Salts of silicates (2) Ester of heavy fatty acids (3) Sodium or potassium salts of heavier fatty acids (4) Mixture of glycerol and alcohol

Last Answer : (3) Sodium or potassium salts of heavier fatty acids

Soap is (a) a mixture of salts of fatty acids (b) a salt of glycerol (c) a mixture of ethers (d) a mixture of aromatic ethers

Description : Soap is (a) a mixture of salts of fatty acids (b) a salt of glycerol (c) a mixture of ethers (d) a mixture of aromatic ethers

Last Answer : a mixture of salts of fatty acids

Esters of fatty acids with higher alcohol other than glycerol are called as (A) Oils (B) Polyesters (C) Waxes (D) Terpenoids

Description : Esters of fatty acids with higher alcohol other than glycerol are called as (A) Oils (B) Polyesters (C) Waxes (D) Terpenoids

Last Answer : Answer : C

The enzyme that catalyse the changing of emulsified oils to fatty acids and glycerol is -

Description : The enzyme that catalyse the changing of emulsified oils to fatty acids and glycerol is -

Last Answer : The enzyme that catalyse the changing of emulsified oils to fatty acids and glycerol is - A. Pepsin B. Lipase C. Amylase D. Sucrose

Esters of fatty acids with higher alcohols other than glycerol are said to be (A) Waxes (B) Fats (C) Both (A) and (B) (D) None of these

Description : Esters of fatty acids with higher alcohols other than glycerol are said to be (A) Waxes (B) Fats (C) Both (A) and (B) (D) None of these

Last Answer : Answer : A

Which of the following best explains why the melting points of saturated fats increase with increasing molecular weight? (a) decreased hydrogen bonding (b) increased hydrogen bonding (c) decreased intermolecular van der Waal’s interactions (d) increased intermolecular van der Waal’s interactions

Description : Which of the following best explains why the melting points of saturated fats increase with increasing molecular weight? (a) decreased hydrogen bonding (b) increased hydrogen bonding (c) decreased intermolecular van der Waal’s interactions (d) increased intermolecular van der Waal’s interactions

Last Answer : increased intermolecular van der Waal’s interactions

Oils and fats are (a) Glyceryl esters of higher fatty acids (b) Acetyl esters of higher fatty acids (c) Ethyl esters of fatty acids (d) Methyl esters of fatty acids

Description : Oils and fats are (a) Glyceryl esters of higher fatty acids (b) Acetyl esters of higher fatty acids (c) Ethyl esters of fatty acids (d) Methyl esters of fatty acids

Last Answer : Ans:(a)

The process of neutralizing the fatty acids present in the oils or fats by adding sodium

Description : The process of neutralizing the fatty acids present in the oils or fats by adding sodium

Last Answer : hydroxide is called saponification.

Cerebrosides are composed of (A) Sphingosine, fatty acids, glycerol and phosphoric acid (B) Sphingosine, fatty acids, galactose (C) Glycerol, fatty acids, galactose (D) Glycerol, fatty acids, galactose, sphingol

Description : Cerebrosides are composed of (A) Sphingosine, fatty acids, glycerol and phosphoric acid (B) Sphingosine, fatty acids, galactose (C) Glycerol, fatty acids, galactose (D) Glycerol, fatty acids, galactose, sphingol

Last Answer : Answer : B

Sphingomyelins are composed of fatty acids, phosphoric acid and (A) Sphingosine and choline (B) Glycerol and sphingosine (C) Glycerol and Serine (D) Glycerol and Choline

Description : Sphingomyelins are composed of fatty acids, phosphoric acid and (A) Sphingosine and choline (B) Glycerol and sphingosine (C) Glycerol and Serine (D) Glycerol and Choline

Last Answer : Answer : A

Lecithins are composed of (A) Glycerol + Fatty acids + Phosphoric acid + Choline (B) Glycerol + Fatty acids + Phosphoric acid + Ethanolamine (C) Glycerol + Fatty acids + Phosphoric acid + Serine (D) Glycerol + Fatty acids + Phosphoric acid + Beaine

Description : Lecithins are composed of (A) Glycerol + Fatty acids + Phosphoric acid + Choline (B) Glycerol + Fatty acids + Phosphoric acid + Ethanolamine (C) Glycerol + Fatty acids + Phosphoric acid + Serine (D) Glycerol + Fatty acids + Phosphoric acid + Beaine

Last Answer : Answer : A

Vegetable oils contain large quantity of glycerides of unsaturated acids. When the vegetable oils contain high amount of saturated fatty acids, it is termed as __________ oil. (A) Drying (B) Semi-drying (C) Non-drying (D) None of these

Description : Vegetable oils contain large quantity of glycerides of unsaturated acids. When the vegetable oils contain high amount of saturated fatty acids, it is termed as __________ oil. (A) Drying (B) Semi-drying (C) Non-drying (D) None of these

Last Answer : (C) Non-drying

Fats and oils are (a) monoesters of glycerol (b) diesters of glycerol (c) triesters of glycerol (d) diesters of glycol

Description : Fats and oils are (a) monoesters of glycerol (b) diesters of glycerol (c) triesters of glycerol (d) diesters of glycol

Last Answer : triesters of glycerol

Consider the following statements: 1. Mercury metal exists as a liquid at room temperature. 2. The property of metals by which they can be beaten into thin sheets is called malleability 3. Neutral fats such as butter and vegetable oils are mostly triglycerides. 4. The size of an atom is of the order of 10 - 15 m. The correct statements are: (a) 1, 2 and 4 only (b) 1, 3 and 4 only (c) 2, 3 and 4 only (d) 1, 2 and 3 only

Description : Consider the following statements: 1. Mercury metal exists as a liquid at room temperature. 2. The property of metals by which they can be beaten into thin sheets is called malleability 3. Neutral fats such as butter and vegetable oils ... b) 1, 3 and 4 only (c) 2, 3 and 4 only (d) 1, 2 and 3 only

Last Answer : Ans:(d)

Which gas is used for converting vegetable oils into saturated fats? (1) H2 (2) O2 (3) Cl2 (4) SO2

Description : Which gas is used for converting vegetable oils into saturated fats? (1) H2 (2) O2 (3) Cl2 (4) SO2

Last Answer : (1) H2 Explanation: Hydrogenation - to treat with hydrogen - is a chemical reaction between molecular hydrogen (H2) and another compound or element, usually in the presence of a catalyst. ... oils are derived from polyunsaturated fatty acids (containing more than one carbon-carbon double bonds).

Which gas is used for converting vegetable oils into saturated fats ? (1) H2 (2) O2 (3) Cl2 (4) SO2

Description : Which gas is used for converting vegetable oils into saturated fats ? (1) H2 (2) O2 (3) Cl2 (4) SO2

Last Answer : H2

Which of the following statements is not true about fatty acids? (a) Fatty acids are carboxylic acids with long hydrocarbon side chains. (b) The double bonds in unsaturated fatty acids are always conjugated. (c) Most naturally occurring fatty acids contain even numbers of carbons and are unbranched. (d) Fatty acids can be saturated or unsaturated

Description : Which of the following statements is not true about fatty acids? (a) Fatty acids are carboxylic acids with long hydrocarbon side chains. (b) The double bonds in unsaturated fatty acids are always ... contain even numbers of carbons and are unbranched. (d) Fatty acids can be saturated or unsaturated

Last Answer : The double bonds in unsaturated fatty acids are always conjugated

Hydrometer measures the specific gravity of liquids based on the principles of buoyancy. Pycnometer is used to measure the specific gravity of (A) Powder & granular solids (B) Liquids (C) Low melting point semi-solids (D) All 'a', 'b' & 'c

Description : Hydrometer measures the specific gravity of liquids based on the principles of buoyancy. Pycnometer is used to measure the specific gravity of (A) Powder & granular solids (B) Liquids (C) Low melting point semi-solids (D) All 'a', 'b' & 'c

Last Answer : (D) All 'a', 'b' & 'c

A fractionating column is a glass apparatus used to (a) Separate magnetic solids from nonmagnetic solids (b) Separate a mixture in water (c) Separate two or more liquids (d) Extract oils from vegetable matter

Description : A fractionating column is a glass apparatus used to (a) Separate magnetic solids from nonmagnetic solids (b) Separate a mixture in water (c) Separate two or more liquids (d) Extract oils from vegetable matter

Last Answer : Ans:(c)

Which statement is false? (a) Many alkanes are soluble in water. (b) All alkanes have a lower density than water. (c) At room temperature some alkanes are liquids, some solids, some gases. (d) All alkanes burn

Description : Which statement is false? (a) Many alkanes are soluble in water. (b) All alkanes have a lower density than water. (c) At room temperature some alkanes are liquids, some solids, some gases. (d) All alkanes burn

Last Answer : Many alkanes are soluble in water

The triacyl glycerol present in plasma lipoproteins are hydrolyzed by (A) Linqual lipase (B) Pancreatic lipase (C) Colipase (D) Lipoprotein lipase

Description : The triacyl glycerol present in plasma lipoproteins are hydrolyzed by (A) Linqual lipase (B) Pancreatic lipase (C) Colipase (D) Lipoprotein lipase

Last Answer : Answer : D

What role does enzyme pepsin play? (1) It converts fats into acids (2) If converts fats into glycerol (3) It converts proteins into peptones (4) It converts starch into sugar

Description : What role does enzyme pepsin play? (1) It converts fats into acids (2) If converts fats into glycerol (3) It converts proteins into peptones (4) It converts starch into sugar

Last Answer : (3) It converts proteins into peptones Explanation: Pepsin is an endopeptidase that breaks down proteins into peptone and polypeptides. If is produced in the stomach and is one of the main digestive enzymes.

Chemically, fats are esters of long carbon-chain acids and which of the following: w) ethanol x) glycerol y) ethylene glycol z) sodium hydroxide

Description : Chemically, fats are esters of long carbon-chain acids and which of the following: w) ethanol x) glycerol y) ethylene glycol z) sodium hydroxide

Last Answer : ANSWER: X -- GLYCEROL

The process of converting liquid oil into solids saturated fats by passing hydrogen gas is

Description : The process of converting liquid oil into solids saturated fats by passing hydrogen gas is

Last Answer : called hydrogenation.

Assertion :- Bile helps in emulsification of fats. Reason `:-` During emulsification fat is brokendown into fatty acid and glycerol.

Description : Assertion :- Bile helps in emulsification of fats. Reason `:-` During emulsification fat is brokendown into fatty acid and glycerol.

Last Answer : Assertion :- Bile helps in emulsification of fats. Reason `:-` During emulsification fat is brokendown ... D. If both Assertion & Reason are false.

Glycerol released from adipose tissue by hydrolysis of triglycerides is mainly (A) Taken up by liver (B) Taken up by extrahepatic tissues (C) Reutilised in adipose tissue (D) Excreted from the body FATS AND FATTY ACID METABOLISM 85

Description : Glycerol released from adipose tissue by hydrolysis of triglycerides is mainly (A) Taken up by liver (B) Taken up by extrahepatic tissues (C) Reutilised in adipose tissue (D) Excreted from the body FATS AND FATTY ACID METABOLISM 85

Last Answer : Answer : A

Very low density lipoproteins are relatively rich in (A) Cholesterol (B) Triacyl glycerol (C) Free fatty acids (D) Phospholipids

Description : Very low density lipoproteins are relatively rich in (A) Cholesterol (B) Triacyl glycerol (C) Free fatty acids (D) Phospholipids

Last Answer : Answer : B

Unsaturated oils compared to saturated oils have (A) Lower melting point & higher reactivity to oxygen (B) Higher melting point & higher reactivity to oxygen (C) Lower melting point & lower reactivity to oxygen (D) Higher melting point & lower reactivity to oxygen

Description : Unsaturated oils compared to saturated oils have (A) Lower melting point & higher reactivity to oxygen (B) Higher melting point & higher reactivity to oxygen (C) Lower melting point & lower reactivity to oxygen (D) Higher melting point & lower reactivity to oxygen

Last Answer : (A) Lower melting point & higher reactivity to oxygen

The Iodine number of essential fatty acids of vegetable oils: (A) High (B) Very high (C) Very low (D) Low

Description : The Iodine number of essential fatty acids of vegetable oils: (A) High (B) Very high (C) Very low (D) Low

Last Answer : Answer : D

A phosphoglyceride is always made up of (a) a saturated or unsaturated fatty acid esterified to a glycerol molecule to which a phosphate group is also attached (b) a saturated or unsaturated fatty acid esterified to a phosphate group which is also attached to a glycerol molecule (c) only a saturated fatty acid esterified to a glycerol molecule to which a phosphate group is also attached (d) only an unsaturated fatty acid esterified to a glycerol molecule to which a phosphate group is also attached.

Description : A phosphoglyceride is always made up of (a) a saturated or unsaturated fatty acid esterified to a glycerol molecule to which a phosphate group is also attached (b) a saturated or unsaturated ... unsaturated fatty acid esterified to a glycerol molecule to which a phosphate group is also attached.

Last Answer : (a) a saturated or unsaturated fatty acid esterified to a glycerol molecule to which a phosphate group is also attached

Inorganic impurities causing water pollution is (A) Fats (B) Carbohydrates (C) Salts of metals (D) Protein

Description : Inorganic impurities causing water pollution is (A) Fats (B) Carbohydrates (C) Salts of metals (D) Protein

Last Answer : (C) Salts of metals

The greater acidity of carboxylic acids compared to alcohols arises primarily from : (a) the electron-donating effect of the hydroxyl group (b) the electron-withdrawing effect of the carboxyl oxygen (c) the acidity of α-hydrogens of carboxylic acids (d) the resonance stability associated with the carboxylate ion

Description : The greater acidity of carboxylic acids compared to alcohols arises primarily from : (a) the electron-donating effect of the hydroxyl group (b) the electron-withdrawing effect of the carboxyl ... of α-hydrogens of carboxylic acids (d) the resonance stability associated with the carboxylate ion

Last Answer : the resonance stability associated with the carboxylate ion

Which of the following vegetable oils does not contain essential fatty acids? (1) Sunflower oil (2) Mustard oil (3) Coconut oil (4) Gmundnut oil

Description : Which of the following vegetable oils does not contain essential fatty acids? (1) Sunflower oil (2) Mustard oil (3) Coconut oil (4) Gmundnut oil

Last Answer : (1) Sunflower oil Explanation: Fatty Acids are aliphatic carboxylic acid with varying hydrocarbon lengths at one end of the chain joined to terminal carboxyl (-COOH) group at the other end.

Which of the following vegetable oils does not contain essential fatty acids ? (1) Sunflower oil (2) Mustard oil (3) Coconut oil (4)Groundnut oil

Description : Which of the following vegetable oils does not contain essential fatty acids ? (1) Sunflower oil (2) Mustard oil (3) Coconut oil (4)Groundnut oil

Last Answer :  Sunflower oil

Are Saturated fats are typically liquid at room temperature.?

Description : Are Saturated fats are typically liquid at room temperature.?

Last Answer : Need answer

Water used for mixing of concrete should be free from (i)Oils (ii)Salts (iii)Acids [ A ] i [ B ] iii [ C ] i and iii [ D ] i, ii and iii

Description : Water used for mixing of concrete should be free from (i)Oils (ii)Salts (iii)Acids [ A ] i [ B ] iii [ C ] i and iii [ D ] i, ii and iii

Last Answer : [ D ] i, ii and iii

What causes unsaturated fatty acid to have different shape than saturated fats?

Description : What causes unsaturated fatty acid to have different shape than saturated fats?

Last Answer : what are accurate comparisons of bases found in robins as opposed to bases found in sparrows

The melting and boiling points of ionic solids are (a) High (b) Low (c) Very low (d) Of intermediate range

Description : The melting and boiling points of ionic solids are (a) High (b) Low (c) Very low (d) Of intermediate range

Last Answer : Ans:(a)

Membrane lipids of chillsensitive plants contain - (1) low proportion of saturated fatty acids. (2) low proportion of unsaturated fatty acids. (3) equal proportion of saturated and unsaturated fatty acids. (4) high proportion of unsaturated fatty acids.

Description : Membrane lipids of chillsensitive plants contain - (1) low proportion of saturated fatty acids. (2) low proportion of unsaturated fatty acids. (3) equal proportion of saturated and unsaturated fatty acids. (4) high proportion of unsaturated fatty acids.

Last Answer : (4) high proportion of unsaturated fatty acids. Explanation: The membranes of chill sensitive plants have been found to have about a 2:1 ratio of unsaturated to saturated fatty ... increases and the critical temperature decreases when chill-sensitive plants are acclimated to a low temperature.

Membrane lipids of chillsensitive plants contain (1) low proportion of saturated fatty acids. (2) low proportion of unsaturated fatty acids. (3) equal proportion of saturated and unsaturated fatty acids. (4) high proportion of unsaturated fatty acids.

Description : Membrane lipids of chillsensitive plants contain (1) low proportion of saturated fatty acids. (2) low proportion of unsaturated fatty acids. (3) equal proportion of saturated and unsaturated fatty acids. (4) high proportion of unsaturated fatty acids.

Last Answer : high proportion of unsaturated fatty acids.

. Sodium or potassium salts of fatty acids are called (a) Proteins (b) Terpenes (c) Carbohydrates (d) Soaps

Description : . Sodium or potassium salts of fatty acids are called (a) Proteins (b) Terpenes (c) Carbohydrates (d) Soaps

Last Answer : Soaps