How are phospholipids different from triglycerides? -Biology

How are phospholipids different from triglycerides? -Biology
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Which of the following gives a positive Ninhydrin test? (A) Reducing sugar (B) Triglycerides (C) α-amino acids (D) Phospholipids

Description : Which of the following gives a positive Ninhydrin test? (A) Reducing sugar (B) Triglycerides (C) α-amino acids (D) Phospholipids

Last Answer : Answer : C

Lovastatin and mevastatin lower (A) Serum triglycerides (B) Serum cholesterol (C) Serum phospholipids (D) All of these

Description : Lovastatin and mevastatin lower (A) Serum triglycerides (B) Serum cholesterol (C) Serum phospholipids (D) All of these

Last Answer : Answer : B

In adipose tissue, glycerol-3-phosphate required for the synthesis of triglycerides comes mainly from (A) Hydrolysis of pre-existing triglycerides (B) Hydrolysis of phospholipids (C) Dihydroxyacetone phosphate formed in glycolysis (D) Free glycerol

Description : In adipose tissue, glycerol-3-phosphate required for the synthesis of triglycerides comes mainly from (A) Hydrolysis of pre-existing triglycerides (B) Hydrolysis of phospholipids (C) Dihydroxyacetone phosphate formed in glycolysis (D) Free glycerol

Last Answer : Answer : C

Lipids are stored in the body mainly in the form of (A) Phospholipids (B) Glycolipids (C) Triglycerides (D) Fatty acids

Description : Lipids are stored in the body mainly in the form of (A) Phospholipids (B) Glycolipids (C) Triglycerides (D) Fatty acids

Last Answer : Answer : C

The major lipid in chylomicrons is (A) Triglycerides (B) Phospholipids (C) Cholesterol (D) Free fatty acids

Description : The major lipid in chylomicrons is (A) Triglycerides (B) Phospholipids (C) Cholesterol (D) Free fatty acids

Last Answer : Answer : A

Low density plasma proteins are rich in (A) Chylomicrons (B) Cholesterol (C) Triglycerides (D) Phospholipids

Description : Low density plasma proteins are rich in (A) Chylomicrons (B) Cholesterol (C) Triglycerides (D) Phospholipids

Last Answer : Answer : B

Are phospholipids lipids? -Biology

Description : Are phospholipids lipids? -Biology

Last Answer : answer:

What is the function of phospholipids ?

Description : What is the function of phospholipids ?

Last Answer : The function of phospholipids regulates the permeability and transport process of phospholipid cells. These act as ion carriers in the cell. Acts as a prosthetic group of several enzymes ; And plays a special role in blood clotting.

what are phospholipids

Description : what are phospholipids

Last Answer : Need Answer

How the phospholipids are arranged in the cell membrane?

Description : How the phospholipids are arranged in the cell membrane?

Last Answer : Two layers of phospholipids are arranged as a bilayer that formsthe basis of cell membrane structure. One layer has its hydrophilicheads neighbouring the surroundings whereas the other has ... the cytoplasm. The hydropholic fattyacid tails of both layers of phospholipid point towards thecentre.

How do phospholipids with unsaturated hydrocarbon chains affect membrane fluidity?

Description : How do phospholipids with unsaturated hydrocarbon chains affect membrane fluidity?

Last Answer : Need answer

Fatty liver is caused due to accumulation of (A) Fatty acids (B) Cholesterol (C) Phospholipids (D) Triacylglycerol

Description : Fatty liver is caused due to accumulation of (A) Fatty acids (B) Cholesterol (C) Phospholipids (D) Triacylglycerol

Last Answer : Answer : D

The common precursor in the biosynthesis of triacylglycerol and phospholipids is (A) 1, 2-Diacylglycerol phosphate (B) 1-Acylglycerol 3-phosphate (C) Glycerol 3-phosphate (D) Dihydroxyacetone phosphate

Description : The common precursor in the biosynthesis of triacylglycerol and phospholipids is (A) 1, 2-Diacylglycerol phosphate (B) 1-Acylglycerol 3-phosphate (C) Glycerol 3-phosphate (D) Dihydroxyacetone phosphate

Last Answer : Answer : A

Phospholipids occur in (A) Myelin sheath (B) Stabilizes chylomicrans (C) Erythrocyte membrane (D) All of these

Description : Phospholipids occur in (A) Myelin sheath (B) Stabilizes chylomicrans (C) Erythrocyte membrane (D) All of these

Last Answer : Answer : D

Which of the following is not a phospholipids? (A) Lecithin (B) Plasmalogen (C) Lysolecithin (D) Gangliosides

Description : Which of the following is not a phospholipids? (A) Lecithin (B) Plasmalogen (C) Lysolecithin (D) Gangliosides

Last Answer : Answer : D

Phospholipids are important cell membrane components since (A) They have glycerol (B) Form bilayers in water (C) Have polar and non-polar portions (D) Combine covalently with proteins

Description : Phospholipids are important cell membrane components since (A) They have glycerol (B) Form bilayers in water (C) Have polar and non-polar portions (D) Combine covalently with proteins

Last Answer : Answer : C

Across a membrane phospholipids act as carrier of (A) Organic compounds (B) Inorganic ions (C) Nucleic acids (D) Food materials

Description : Across a membrane phospholipids act as carrier of (A) Organic compounds (B) Inorganic ions (C) Nucleic acids (D) Food materials

Last Answer : Answer : B

Cholesterol, bile salts, vitamin D and sex hormones are (A) Mucolipids (B) Glycolipids (C) Phospholipids (D) Isoprenoid lipids

Description : Cholesterol, bile salts, vitamin D and sex hormones are (A) Mucolipids (B) Glycolipids (C) Phospholipids (D) Isoprenoid lipids

Last Answer : Answer : D

Which one of the following compounds is a key intermediate in the synthesis of both triacyl glycerols and phospholipids? (A) CDP Choline (B) Phosphatidase (C) Triacyl glyceride (D) Phosphatidyl serine

Description : Which one of the following compounds is a key intermediate in the synthesis of both triacyl glycerols and phospholipids? (A) CDP Choline (B) Phosphatidase (C) Triacyl glyceride (D) Phosphatidyl serine

Last Answer : Answer : B

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

CTP is required for the synthesis of (A) Fatty acids (B) Proteins (C) Phospholipids (D) Cholesterol

Description : CTP is required for the synthesis of (A) Fatty acids (B) Proteins (C) Phospholipids (D) Cholesterol

Last Answer : Answer : C

Phospholipids are important cell membrane components because (A) They have glycerol (B) They can form bilayers in water (C) They have both polar and non polar potions (D) They combine covalently with proteins

Description : Phospholipids are important cell membrane components because (A) They have glycerol (B) They can form bilayers in water (C) They have both polar and non polar potions (D) They combine covalently with proteins

Last Answer : Answer : C

Depot fats of mammalian cells comprise mostly of (A) Cholesterol (B) Cholesterol esters (C) Triacyl glycerol (D) Phospholipids

Description : Depot fats of mammalian cells comprise mostly of (A) Cholesterol (B) Cholesterol esters (C) Triacyl glycerol (D) Phospholipids

Last Answer : Answer : C

Phospholipids help the oxidation of (A) Glycerol (B) Fatty acids (C) Glycerophosphates(D) None of these

Description : Phospholipids help the oxidation of (A) Glycerol (B) Fatty acids (C) Glycerophosphates(D) None of these

Last Answer : Answer : B

The rate of fatty acid oxidation is increased by (A) Phospholipids (B) Glycolipids (C) Aminolipids (D) All of these

Description : The rate of fatty acid oxidation is increased by (A) Phospholipids (B) Glycolipids (C) Aminolipids (D) All of these

Last Answer : Answer : A

The combination of an amino alcohol, fatty acid and sialic acid form (A) Phospholipids (B) Sulpholipids (C) Glycolipids (D) Aminolipids

Description : The combination of an amino alcohol, fatty acid and sialic acid form (A) Phospholipids (B) Sulpholipids (C) Glycolipids (D) Aminolipids

Last Answer : Answer : C

All of the following statements about multiple sclerosis are true except (A) There is loss of phospholipids from white matter (B) There is loss of sphingolipids from white matter (C) There is loss of esterified cholesterol from white matter (D) White matter resembles gray matter in composition

Description : All of the following statements about multiple sclerosis are true except (A) There is loss of phospholipids from white matter (B) There is loss of sphingolipids from white matter (C) There is loss of esterified cholesterol from white matter (D) White matter resembles gray matter in composition

Last Answer : Answer : C

Sphingomyelins: (A) Phospholipids (B) Nitrolipids (C) Alcohols (D) None of these

Description : Sphingomyelins: (A) Phospholipids (B) Nitrolipids (C) Alcohols (D) None of these

Last Answer : Answer : A

Pancreatic lipase requires for its activity: (A) Co-lipase (B) Bile salts (C) Phospholipids (D) All of these

Description : Pancreatic lipase requires for its activity: (A) Co-lipase (B) Bile salts (C) Phospholipids (D) All of these

Last Answer : Answer : D

The highest phospholipids content is found in (A) Chylomicrons (B) VLDL (C) LDL (D) HDL

Description : The highest phospholipids content is found in (A) Chylomicrons (B) VLDL (C) LDL (D) HDL

Last Answer : Answer : D

In neutral fats, the unsaponificable matter includes (A) Hydrocarbons (B) Triacylglycerol (C) Phospholipids (D) Cholsesterol

Description : In neutral fats, the unsaponificable matter includes (A) Hydrocarbons (B) Triacylglycerol (C) Phospholipids (D) Cholsesterol

Last Answer : Answer : A

The importance of phospholipids as constituent of cell membrane is because they possess (A) Fatty acids (B) Both polar and nonpolar groups (C) Glycerol (D) Phosphoric acid

Description : The importance of phospholipids as constituent of cell membrane is because they possess (A) Fatty acids (B) Both polar and nonpolar groups (C) Glycerol (D) Phosphoric acid

Last Answer : Answer : B

Unsaturated fatty acids is known as (A) Non-essential fatty acids (B) Essential fatty acids (C) Cerebrosides (D) Phospholipids

Description : Unsaturated fatty acids is known as (A) Non-essential fatty acids (B) Essential fatty acids (C) Cerebrosides (D) Phospholipids

Last Answer : Answer : B

Amino acids provide the nitrogen for the synthesis of (A) The bases of the phospholipids (B) Uric acid (C) Glycolipids (D) Chondroitin sulphates

Description : Amino acids provide the nitrogen for the synthesis of (A) The bases of the phospholipids (B) Uric acid (C) Glycolipids (D) Chondroitin sulphates

Last Answer : Answer : A

Normal range of plasma total phospholipids is (A) 0.2–0.6 mmol/L (B) 0.9–2.0 mmol/L (C) 1.8–5.8 mmol/L (D) 2.8–5.3 mmol/L

Description : Normal range of plasma total phospholipids is (A) 0.2–0.6 mmol/L (B) 0.9–2.0 mmol/L (C) 1.8–5.8 mmol/L (D) 2.8–5.3 mmol/L

Last Answer : Answer : C

All the following processes occur rapidly in the membrane lipid bilayer except (A) Flexing of fatty acyl chains (B) Lateral diffusion of phospholipids (C) Transbilayer diffusion of phopholipids (D) Rotation of phospholipids around their long axes

Description : All the following processes occur rapidly in the membrane lipid bilayer except (A) Flexing of fatty acyl chains (B) Lateral diffusion of phospholipids (C) Transbilayer diffusion of phopholipids (D) Rotation of phospholipids around their long axes

Last Answer : C

Which of the following phospholipids is localized to a greater extent in the outer leaflet of the membrane lipid bilayer? (A) Choline phosphoglycerides (B) Ethanolamine phosphoglycerides (C) Inositol phosphoglycerides (D) Serine phosphoglycerides

Description : Which of the following phospholipids is localized to a greater extent in the outer leaflet of the membrane lipid bilayer? (A) Choline phosphoglycerides (B) Ethanolamine phosphoglycerides (C) Inositol phosphoglycerides (D) Serine phosphoglycerides

Last Answer : A

Platelet activating factor is: a. Generated by the action of phospholipase A2 on membrane phospholipids b. Antiinflammatory in most of its actions c. Synthesized by endothelial and other cells d. Exerts a variety of biologic effects which are platelet-independent

Description : Platelet activating factor is: a. Generated by the action of phospholipase A2 on membrane phospholipids b. Antiinflammatory in most of its actions c. Synthesized by endothelial and other cells d. Exerts a variety of biologic effects which are platelet-independent

Last Answer : Answer: a, c, d Like the eicosanoids, platelet-activating factor (PAF) is not stored in cells but is rapidly produced during inflammation. PAF exerts a variety of biologic effects ... and LTB4. There is considerable overlap and redundancy in the effects produced by PAF and eicosanoids

Phosphorous is an essential component of a. Nucleotides b. Nucleic acids c. Phospholipids and Heichoic acids d. All the above

Description : Phosphorous is an essential component of a. Nucleotides b. Nucleic acids c. Phospholipids and Heichoic acids d. All the above

Last Answer : Ans: D

What are the respective functions of phospholipids ?

Description : What are the respective functions of phospholipids ?

Last Answer : proteins and carbohydrates of the cell membrane? Membrane phospholipids have structural function they form the bilipid membrane that constitutes the cell membrane itself. Membrane proteins have several ... blood group system), immune modulation functions, pathogen sensitization functions, etc.

Explain in brief about leukotrienes and prostaglandins Leukotrienes and prostaglandins are formed only when the mast cell undergo degranulation and enzymatic break down of phospholipids in the plasma membrane ?

Description : Explain in brief about leukotrienes and prostaglandins Leukotrienes and prostaglandins are formed only when the mast cell undergo degranulation and enzymatic break down of phospholipids in the plasma membrane ?

Last Answer : The effects produced by them are more pronounced and long lasting than histamine. Leukotrienes mediate mucous production and bronchoconstriction. Prostaglandin D2 causes bronchoconstriction.

How phospholipids are classified?

Description : How phospholipids are classified?

Last Answer : 1. Nitrogen containing glycero phosphatides, 2. Non-nitrogen containing glycero phosphatides, 3. Plasmalogens, 4. Phospho sphingosides 5. Glycosphingolipids 6. Sulpholipids.

According to fluid mosaic model, plasma membrane is composed of (a) phospholipids and oligosaccharides (b) phospholipids and hemicellulose (c) phospholipids and integral proteins (d) phospholipids, extrinsic proteins and intrinsic proteins.

Description : According to fluid mosaic model, plasma membrane is composed of (a) phospholipids and oligosaccharides (b) phospholipids and hemicellulose (c) phospholipids and integral proteins (d) phospholipids, extrinsic proteins and intrinsic proteins.

Last Answer : (d) phospholipids, extrinsic proteins and intrinsic proteins.

In fluid mosaic model of plasma membrane (a) upper layer is non-polar and hydrophilic (b) upper layer is polar and hydrophobic (c) phospholipids form a bimolecular layer in middle part (d) proteins form a middle layer.

Description : In fluid mosaic model of plasma membrane (a) upper layer is non-polar and hydrophilic (b) upper layer is polar and hydrophobic (c) phospholipids form a bimolecular layer in middle part (d) proteins form a middle layer.

Last Answer : (c) phospholipids form a bimolecular layer in middle part

Which one of the following is not a constituent of cell membrane? (a) Glycolipids (b) Proline (c) Phospholipids (d) Cholesterol

Description : Which one of the following is not a constituent of cell membrane? (a) Glycolipids (b) Proline (c) Phospholipids (d) Cholesterol

Last Answer : (b) Proline

The plasma membrane consists mainly of (a) phospholipids embedded in a protein bilayer (b) proteins embedded in a phospholipid bilayer (c) proteins embedded in a polymer of glucose molecules (d) proteins embedded in a carbohydrate bilayer

Description : The plasma membrane consists mainly of (a) phospholipids embedded in a protein bilayer (b) proteins embedded in a phospholipid bilayer (c) proteins embedded in a polymer of glucose molecules (d) proteins embedded in a carbohydrate bilayer

Last Answer : (b) proteins embedded in a phospholipid bilayer

Select the correct matching in the following pairs. (a) Rough ER – Synthesis of glycogen (b) Rough ER – Oxidation of fatty acids (c) Smooth ER – Oxidation of phospholipids (d) Smooth ER – Synthesis of lipids

Description : Select the correct matching in the following pairs. (a) Rough ER – Synthesis of glycogen (b) Rough ER – Oxidation of fatty acids (c) Smooth ER – Oxidation of phospholipids (d) Smooth ER – Synthesis of lipids

Last Answer : (d) Smooth ER – Synthesis of lipids

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

.Which is most likely to be exposed on the surface of a gram-negative bacterium? A.Pore protein (porin) B.Protein involved in energy generation C.Lipoteichoic acid D.Phospholipids

Description : .Which is most likely to be exposed on the surface of a gram-negative bacterium? A.Pore protein (porin) B.Protein involved in energy generation C.Lipoteichoic acid D.Phospholipids

Last Answer : A.Pore protein (porin)

Which is most likely to be exposed on the surface of a gram-negative bacterium? A- Pore protein (porin) B- Protein involved in energy generation C- .Lipoteichoic acid D- Phospholipids

Description : Which is most likely to be exposed on the surface of a gram-negative bacterium? A- Pore protein (porin) B- Protein involved in energy generation C- .Lipoteichoic acid D- Phospholipids

Last Answer : Pore protein (porin)