Description : Very low density lipoproteins are relatively rich in (A) Cholesterol (B) Triacyl glycerol (C) Free fatty acids (D) Phospholipids
Last Answer : Answer : B
Description : Which are the cholesterol esters that enter cells through the receptor-mediated endocytosis of lipoproteins hydrolyzed? (A) Endoplasmin reticulum (B) Lysosomes (C) Plasma membrane receptor (D) Mitochondria
Last Answer : B
Last Answer : (B) Lysosomes
Description : The principal action of insulin in adipose tissue is to inhibit the activity of the (A) Hormone sensitive lipoprotein lipase (B) Glycerol phosphate acyltransferase (C) Acetyl-CoA carboxylase (D) Pyruvate dehydrogenase
Last Answer : Answer : A
Description : A non-functional plasma enzyme is (A) Psudocholinesterase (B) Lipoprotein lipase (C) Proenzyme of blood coagulation (D) Lipase
Last Answer : Answer : D
Description : An example of functional plasma enzyme is (A) Lipoprotein lipase (B) Amylase (C) Aminotransferase (D) Lactate dehydrogenase
Description : The following is true of bezafibrate except: A. It activates lipoprotein lipase B. It mainly lowers serum triglyceride level with smaller effect on LDL cholesterol level C. It increases the incidence of myopathy due to statins D. It tends to lower plasma fibrinogen level
Last Answer : C. It increases the incidence of myopathy due to statins
Description : Choose the correct statement(s) about actions of insulin: A. It favours translocation of glucose transporters from intracellular site to the plasma membrane B. It enhances transcription of lipoprotein ... vascular endothelium C. It increases production of the enzyme glucokinase D. All of the above
Last Answer : D. All of the above
Description : Intermediate in the denovo synthesis of triacyl glycerols include all the following except (A) Fatty acyl CoA (B) CDP diacyl glycerol (C) Glycerol-3-phosphate (D) Lysophosphatidic acid
Description : When the stired triacylglycerol is lipolysed in the adipose tissue blood levels of _____ increased. (A) FFA only (B) Glycerol only (C) Free fatty acids (FFA) and Glycerol (D) Triacyl glycero
Last Answer : Answer : C
Description : Adipose tissue which is a store house for triacyl glycerol synthesis the same using (A) The glycerol released by hydrolysis of triacyl glycerol (B) The glycerol-3-phosphate obtained in the metabolism of glucose (C) 2-phosphoglycerate (D) 3-phosphoglycerate
Description : Depot fats of mammalian cells comprise mostly of (A) Cholesterol (B) Cholesterol esters (C) Triacyl glycerol (D) Phospholipids
Description : Triacyl glycerol synthesis is enhanced by which hormone?
Last Answer : Insulin.
Description : Complete digestion of triacyl glycerol (triglyceride) in gastro intestinal tract needs what enzymes?
Last Answer : Pancreatic lipase, co-lipase, isomerase and bile salts
Description : 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 ... low melting points are composed of saturated fatty acids, causing them to be liquids at room temperature
Last Answer : Triacylglycerols with low melting points are composed of saturated fatty acids, causing them to be liquids at room temperature
Description : An important zinc containing enzyme is (A) Carboxypeptidase A (B) Isocitrate dehydrogenase (C) Cholinesterate (D) Lipoprotein lipase
Description : ‘Clearing factor’ is (A) Lipoprotein lipase (B) Crotonase (C) 7-dehydro cholesterol (D) β-sitosterol
Description : Non steroidal anti inflammatory drugs, such as aspirin act by inhibiting the activity of the enzyme: (A) Lipoxygenase (B) Cyclooxygenase (C) Phospholipase A2 (D) Lipoprotein lipase
Description : This interferes with cholesterol absorption (A) Lipoprotein lipase (B) Creatinase (C) 7-dehydrocholesterol (D) β-sitosterol
Description : Genetic deficiency of lipoprotein lipase causes hyperlipoproteinaemia of following type: (A) Type I (B) Type IIa (C) Type IIb (D) Type V
Description : Apolipoprotein C-II is an activator of (A) Lecithin cholesterola acyl transferase (B) Phospholipase C (C) Extrahepatic lipoprotein lipase (D) Hepatic lipoprotein lipase
Description : Lipoprotein lipase deficiency is associated with: 1) Abetalipoproteinaemia 2) Combined hyperlipidaemia 3) Familial combined hyperlipidaemia 4) Familial Hypercholesterolaemia 5) Marked Hypertriglyceridaemia
Last Answer : Answers-5 Lipoprotein lipase deficiency is autosomal recessive and associated with increased chylomicrons and marked hypertriglyceridaemia.
Description : δ-Cells of islet of langerhans of pancreas produce (A) Pancreatic polypeptide (B) Pancreatic lipase (C) Somatostatin (D) Steapsin
Description : The optimum pH of pancreatic lipase is (A) 2.0 (B) 4.0 (C) 6.0 (D) 8.0
Description : Example of an extracellular enzyme is (A) Lactate dehydrogenase (B) Cytochrome oxidase (C) Pancreatic lipase (D) Hexokinase
Description : Pancreatic lipase converts triacylglycerols into (A) 2, 3-Diacylglycerol (B) 1-Monoacylglycerol (C) 2-Monoacylglycerol (D) 3-Monoacylglycerol
Description : Pancreatic lipase requires for its activity: (A) Co-lipase (B) Bile salts (C) Phospholipids (D) All of these
Description : Pancreatic juice contains all of the following except (A) Trypsinogen (B) Lipase (C) Cholecystokinin (D) Chymnotrypsinogen
Description : What is the function of pancreatic lipase?
Last Answer : Partial hydrolysis of triacyl glycerol. The products are 2-mono acylglycerol (2-MAG) (?-monoglyceride) and two fatty acid molecule
Description : Which of the following regulates lipolysis in adipocytes? (A) Activation of fatty acid synthesis mediated by CAMP (B) Glycerol phosphorylation to prevent futile esterification of fatty acids (C) ... result of hormone stimulated increases in CAMP levels (D) Activation of CAMP production by Insulin
Description : Salivary lipase converts dietary triglycerides into (A) Diglycerides and fatty acids (B) Monoglycerides and fatty acids (C) Glycerol and fatty acids (D) All of these
Description : Adipose tissue lacks (A) Hormone-sensitive lipase (B) Glycerol kinase (C) cAMP-dependent protein kinase (D) Glycerol-3-phosphate dehydrogenase
Description : Which of the following lipoproteins would contribute to a measurement of plasma cholesterol in a normal person following a 12 hr fast? (A) High density lipoprotiens (B) Low density lipoproteins (C) Chylomicron (D) Chylomicron remnants
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 ‘free fatty acids’ (FFA) of plasma: (A) metabolically inert (B) mainly bound to β-lipoproteins (C) stored in the fat (D) mainly bound to serum albumin
Description : DNA is (A) Usually present in tissues as a nucleo protein and cannot be separated from its protein component (B) A long chain polymer in which the internucleotide linkages are of the diester type between C-3 ... linkages are between C-2' and C-5' (D) Hydrolyzed by weal alkali (pH9 to 100°C)
Description : A 65-year old patient has colon carcinoma metastatic to the liver and lungs. He has had a weight loss of 10 kg. Cytokine-dependent tumor cachexia is attributable to which of the ... is impaired e. Partial reversal of differentiated adipocytes to pre-adipocyte morphology and gene expression occurs
Last Answer : Answer: a, b, c, d, e Tumor cachexia appears to be mediated by TNFa. Lipopolysaccharide (LPS), as well as other cytokines, activate a variety of inflammatory cells, most ... chronic syndromes of anorexia, weight loss, and cachexia that are associated with both chronic infection and malignancy
Description : Six months after beginning atorvastatin, the patient's total and LDL cholesterol concentrations remained above normal and he continued to have anginal attacks despite good adherence to his antianginal ... Increased endocytosis of HDL by the liver (e) Increased lipid hydrolysis by lipoprotein lipase
Last Answer : Ans: C
Description : Pancreatic lipase acts upon-
Last Answer : Pancreatic lipase acts upon- A. Glycogen B. Triglycerides C. Dissacharides D. Polypeptides
Description : Fill in the blanks with appropriate options to complete the given equation `Fatsoverset(A)rarr.....B...underset("Lipase")overset("Pancreatic")rarr"Mon
Last Answer : Fill in the blanks with appropriate options to complete the given equation `Fatsoverset(A)rarr..... ... Diglycerides D. A- Lipase, B - Polyglycerides
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 : Which of the following options best represents the enzyme composition of pancreatic juice? (a) Amylase, Pepsin, Trypsinogen, Maltase (b) Peptidase, Amylase, Pepsin, Rennin (c) Lipase, Amylase, Trypsinogen, Procarbo- xypeptidase (d) Amylase, Peptidase, Trypsinogen, Rennin
Last Answer : (c) Lipase, Amylase, Trypsinogen, Procarbo- xypeptidase
Description : Pancreatic juice contains more than one enzyme. Which among the following combination is correct ? (1) Pepsin and Lipase (2) Amylase and Pepsin (3) Pepsin and Trypsin (4) Trypsin and Lipase
Last Answer : 4) Trypsin and Lipase
Description : Which of the following options best represents the enzyme composition of pancreatic juice ? (1) amylase, pepsin, trypsinogen, maltase (2) peptidase, amylase, pepsin, rennin (3) lipase, amylase, trypsinogen, procarboxypeptidase (4) amylase, peptidase, trypsinogen, rennin
Last Answer : (3) lipase, amylase, trypsinogen, procarboxypeptidase
Description : A good source of lipase is (a) Saliva (b) Bile (c) Gastric juice (d) Pancreatic juice .
Last Answer : (d) Pancreatic juice .
Description : Pancreatic lipase is activated by (a) HCI (b) CCK (c) Bite (d) All
Last Answer : (c) Bite
Description : Which of the following is absent in pancreatic juice: (a)Trypsin (b) Amylopsin (c) pepsin (d) Lipase
Last Answer : (c) pepsin
Description : Which of the following human digestive enzymes is incorrectly matched to its substrate? a) pepsin - protein b) trypsin - starch (pron: TRIP-sin) c) pancreatic amylase - starch (pron: AM-i-lase) d) lipase - fat e) maltase - maltose.
Last Answer : ANSWER: B -- TRYPSIN - STARCH
Description : The adipose tissue lacks the enzyme _____________. a. Glycerol Kinase. b. Lipase. c. Glycerol Synthetase. d. Pyrophosphatase.
Last Answer : a. Glycerol Kinase.
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