Description : Triglycerides present in adipose tissue are hydrolysed by what enzyme?
Last Answer : Hormone sensitive lipase.
Description : Which one of the following statements is true regarding digestion and absorption of food in humans? (a) Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions ... amylase in our mouth. (d) Oxyntic cells in our stomach secrete the proenzyme pepsinogen.
Last Answer : (a) Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na
Description : Major lipid class present in chylomicrons is (a) Endogenous triglycerides (b) Cholesterol esters (c) Dietary triglycerides (d) All of the above
Last Answer : Ans: C
Description : Triglycerides are transported from liver to extrahepatic tissues by (A) Chylomicrons (B) VLDL (C) HDL (D) LDL
Last Answer : Answer : B
Description : The major lipid in chylomicrons is (A) Triglycerides (B) Phospholipids (C) Cholesterol (D) Free fatty acids
Last Answer : Answer : A
Description : Low density plasma proteins are rich in (A) Chylomicrons (B) Cholesterol (C) Triglycerides (D) Phospholipids
Description : Chylomicrons are present in fasting blood samples in hyperlipoproteinaemia of following types: (A) Types I and IIa (B) Types IIa and IIb (C) Types I and V (D) Types IV and V
Last Answer : Answer : C
Description : Apolipoprotiens C-I, C-II and C-III are present in all of the following except (A) Chylomicrons (B) VLDL (C) LDL (D) HDL
Description : Apolipoproteins C-I, C-II and C-III are present in (A) Chylomicrons (B) VLDL (C) HDL (D) All of these
Last Answer : Answer : D
Description : Apolipoprotein B-100 is present in (A) Chylomicrons (B) VLDL only (C) LDL only (D) VLDL and LDL
Description : Apolipoprotein B-48 is present in (A) Chylomicrons (B) VLDL (C) LDL (D) HDL
Description : Apolipoproteins A-I and A-II are present in (A) LDL only (B) LDL and VLDL (C) HDL only (D) HDL and chylomicrons
Description : Which of the following statements about nucleic acid is most correct? (A) Both pentose nucleic acid and deoxypentose nucleic acid contain the same pyrimidines (B) Both pentose nucleic acid and deoxypentose ... (C) RNA contains cytosine and thymine (D) DNA and RNA are hydrolysed by weak alkali
Description : Current concepts concerning the intestinal absorption of triacylglycerols are that (A) They must be completely hydrolysed before the constituent fatty acids can be absorbed (B) They are hydrolysed partially ... portal blood (D) In the absence of bile the hydrolysis of triacyl glycerols is absorbed
Description : The bond in proteins that is not hydrolysed under usual conditions of denaturation: (A) Hydrophobic bond (B) Hydrogen bond (C) Disulphide bond (D) Peptide bonds
Description : Cerebonic acid is present in (A) Triglycerides (B) Cerebrosides (C) Esterified cholestrol (D) Sphingomyelin
Description : Which of the following lipoproteins would contribute to a measurement of plasma cholesterol in a normal individual following a 12 hr fast? (A) Chylomicrons (B) VLDL (C) Both VLDL and LDL (D) LDL
Description : The major source of cholesterol in arterial smooth muscle cells is from (A) IDL (B) LDL (C) HDL (D) Chylomicrons FATS AND FATTY ACID METABOLISM 101
Description : This lipoprotein removes cholesterol from the body (A) HDL (B) VLDL (C) IDL (D) Chylomicrons
Description : Most animal tissues contain appreciable amounts of lipid, when in the form of depot fat it consists largely of (A) Cholesterol ester (B) Phosphatides (C) Chylomicrons (D) Triacylglycerol
Description : The class of lipoproteins having a beneficial effect in atherosclerosis is (A) Low density of lipoproteins (B) very low density lipoproteins (C) High density lipoproteins (D) Chylomicrons
Description : Nascent HDL of intestinal origin acquires Apo C and Apo E from (A) Chylomicrons (B) VLDL (C) LDL (D) HDL of the hepatic origin
Description : VLDL remnant may be converted into (A) VLDL (B) LDL (C) HDL (D) Chylomicrons
Description : Elevated plasma level of the following projects against atherosclerosis: (A) Chylomicrons (B) VLDL (C) HDL (D) LDL
Description : Cholesterol is transported from liver to extrahepatic tissues by (A) Chylomicrons (B) VLDL (C) HDL (D) LDL
Description : The lipoprotein richest in cholesterol is (A) Chylomicrons (B) VLDL (C) LDL (D) HDL
Description : The highest phospholipids content is found in (A) Chylomicrons (B) VLDL (C) LDL (D) HDL
Description : Familial hypertriaacylglycerolemia is associated with (A) Over production of VLDL (B) Increased LDL concentration (C) Increased HDL concentration (D) Slow clearance of chylomicrons
Description : Which of the following is a characteristic feature of familial hypercholesterolaemia? 1) Autosomal dominant inheritance 2) elevated chylomicrons 3) hypertriglyceridaemia 4) increased expression of LDL receptors 5) Palmar xanthomas
Last Answer : Answers-1 Familial hypercholesterolaemia is an autosomal dominant condition manifest by increased LDL concentrations (not chylomicrons) due to constitutional abnormalities and reduced numbers of ... are characteristic and the condition is associated with a premature cardiovascular mortality.
Description : With respect to lipoprotein transport and metabolism in the body, the following statements are correct EXCEPT: 1) Arterial walls contain cells with LDL receptors. 2) Cholesterol is required for the ... is assembled in the extracellular space. 5) VLDL transformation to LDL occurs in adipose tissue.
Last Answer : Answers-3 Chylomicrons are formed in the gut from exogenous triacylglycerols and cholesterol. They are released into the lymph and thereby enter the blood.They are not formed in the liver.
Description : Hydrolysis of ester in catalysed by acid. Rate of hydrolysis of ester were obtained initially and after some ester has been hydrolysed as `R_(0)` and
Last Answer : Hydrolysis of ester in catalysed by acid. Rate of hydrolysis of ester were obtained initially and after some ... 0) gt R_(t)` D. Cannot be determined
Description : The most easily hydrolysed molecule under `S_(N^(1))` condition is:
Last Answer : The most easily hydrolysed molecule under `S_(N^(1))` condition is: A. allyl chloride B. benzyl chloride C. ethyl chloride D. isopropyl chloride
Description : Which one of the following halogen compounds is difficult to be hydrolysed by `S_(N^(1))` mechanism?
Last Answer : Which one of the following halogen compounds is difficult to be hydrolysed by `S_(N^(1)) ... B. Isopropyl chloride C. Benzyl chloride D. Chlorobenzene
Description : Which of the following alkyl halides is hydrolysed by `S_(N^(1))` mechanism?
Last Answer : Which of the following alkyl halides is hydrolysed by `S_(N^(1))` mechanism? A. `CH_(3)Cl` B. `CH_(3)CH_(2)Cl` ... (2)CH_(2)Cl` D. `(CH_(3))_(3)"CCl"`
Description : Which is/are hydrolysed by water ?
Last Answer : Which is/are hydrolysed by water ? A. `XeF_(2)` B. `XeF_(4)` C. `XeF_(6)` D. `XeOF_(4)`
Description : Which one of the following is/are cannot be hydrolysed?
Last Answer : Which one of the following is/are cannot be hydrolysed? A. `TeF_(6)` B. `SF_(6)` C. `NCl_(3)` D. `NF_(3)`
Description : Assertion:- `SF_(6)` cannot be hydrolysed but `SF_(4)` can be. Reason:- Six F atoms in `SF_(6)` prevent the attack of `H_(2)O` on sulphur atom of `SF_
Last Answer : Assertion:- `SF_(6)` cannot be hydrolysed but `SF_(4)` can be. Reason:- Six F atoms in ` ... D. Statement-I is not correct and Statement-II is correct
Description : Which of the following is most easily hydrolysed?
Last Answer : Which of the following is most easily hydrolysed? A. `SF_(6)` B. `NF_(3)` C. `CCl_(4)` D. `TeF_(6)`
Description : A 50% solution of sulphuric acid is subjected to electrolyte oxidation and the product is hydrolysed.
Last Answer : Write balanced chemical equations : A 50% solution of sulphuric acid is subjected to electrolyte oxidation and the product is hydrolysed.
Description : During electrolysis, the cations and anions of the electrolyte are 1. Discharged 2. Hydrolysed 3. In motion 4. Hydrated The correct answers are: (a) 1 and 3 (b) 2 and 4 (c) 3 and 4 (d) 1 and 2
Last Answer : Ans:(a)
Description : When RNA in hydrolysed there is no relationship among the quantities of four bases obtained like DNA. What does this fact indicate about structure of RNA ?
Last Answer : Ans. This indicate that RNA has a single strand structure.
Description : If for some reason the parietal cells of the gut epithelium become partially non-functional, what is likely to happen? (a) The pancreatic enzymes and specially the trypsin and lipase will ... more effective. (d) Proteins will not be adequately hydrolysed by pepsin into proteoses and peptones.
Last Answer : (d) Proteins will not be adequately hydrolysed by pepsin into proteoses and peptones.
Description : Poisons like cyanide inhibit Na+ efflux and K+ influx during cellular transport. This inhibitory effect is reversed by an injection of ATP. This demonstrates that (a) ATP is the carrier protein in the ... is hydrolysed by ATPase to release energy (d) Na+-K+ exchange pump operates in the cell.
Last Answer : (b) energy for Na+-K+ exchange pump comes from ATP
Description : Fatty acids are a major energy source for the body. Which of the following statement(s) is/are true concerning the use of fatty acids as an energy source? a. Fatty acids are stored in ... 25% of total nonprotein caloric needs supplied via total parenteral nutrition should be in the form of fat
Last Answer : Answer: a, b, d In most tissues, fatty acids are readily oxidized for energy. They are especially important energy sources for the heart, liver and skeletal muscle. In ... administered to patients receiving total parenteral nutrition should comprise about 5-30% of total nonprotein caloric needs
Description : Which of the following gives a positive Ninhydrin test? (A) Reducing sugar (B) Triglycerides (C) α-amino acids (D) Phospholipids
Description : Glycerol-3-phosphate for the synthesis of triglycerides in adipose tissue is derived from (A) Phosphatidic acid (B) Diacylglycerol (C) Glycerol (D) Glucose
Description : In the biosynthesis of triglycerides from glycerol 3-phosphate and acyl-CoA, the first intermediate formed is (A) 2-Monoacylglycerol (B) 1, 2-Diacylglycerol (C) Lysophosphatidic acid (D) Phosphatidic acid
Description : Lovastatin and mevastatin lower (A) Serum triglycerides (B) Serum cholesterol (C) Serum phospholipids (D) All of these