Description : The surface tension in intestinal lumen between fat droplets and aqueous medium is decreased by (A) Bile Salts (B) Bile acids (C) Conc. H2SO4 (D) Acetic acid
Last Answer : (A) Bile Salts
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?
Description : In Wilson’s disease (A) Copper fails to be excreted in the bile (B) Copper level in plasma is decreased (C) Ceruloplasmin level is increased (D) Intestinal absorption of copper is decreased
Last Answer : Answer : A
Description : Intestinal bacteria can grow in the presence of __________whereas nonintestinal bacteria are A.bile salts B.low concentration of various dyes C.sugars D.low levels of nitrogen
Last Answer : A.bile salts
Description : Select the hypocholesterolemic drug which interferes with intestinal absorption of bile salts and cholesterol, and secondarily increases cholesterol turnover in the liver: A. Gemfibrozil B. Cholestyramine C. Lovastatin D. Bezafibrate
Last Answer : B. Cholestyramine
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
Last Answer : Answer : B
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
Description : Bile salts make emulsification with fat for the action of (A) Amylose (B) Lipase (C) Pepsin (D) Trypsin
Description : Hypolipidemic drugs reduce serum cholesterol and triacylglycerol. The effect of clofibrate is attributed to (A) Block in absorption from G.I.T. (B) Decrease in secretion of triacylglycerol and cholesterol ... by liver (C) Block in the reabsorption of bile acids (D) Decreased synthesis of cholesterol
Description : The aqueous solution of which acids is called Vinegar - (1) Citric acid (2) Hydrochloric acid (3) Acetic acid (4) Oxalic acid
Last Answer : (3) Acetic acid Explanation: Vinegar is an aqueous solution of acetic acid and trace chemicals that may include flavorings. Vinegar typically contains 5–20% acetic acid by volume.
Description : Saponification number is (A) mg of KOH required to saponify one gm of fat or oil (B) mg of KOH required to neutralize free fatty acids of one gms of fat (C) mg of KOH required to neutralize the acetic acid obtained by saponification of one gm of fat after it has been acetylated (D) None of these
Last Answer : Answer : C
Description : Emulsification of fat is carried out by (a) bile pigments (b) bile salts (c) HCl (d) pancreatic juice
Last Answer : b) bile salts
Description : Fat digestion is diffcult due to absence of (a) Bile salts (b) Bile pigments (c) Cholesterol (d) All
Last Answer : (a) Bile salts
Description : Emulsification of fat is brought about by (a) Bile pigments (b) Bile salts (c) Pancreatic juice (d) HCl
Last Answer : (b) Bile salts
Description : The pancreatic amylase activity is increased in the presence of (A) Hydrochloric acid (B) Bile salts (C) Thiocyanate ions (D) Calcium ions
Description : Oil of Wintergreen (Methyl salicylate) is obtained by treating salicylic acid with (a) Methane at 150°C (b) CH3OH and conc. H2SO4 (c) Methyl chloride (d) NaOH and then CH3OH
Last Answer : CH3OH and conc. H2SO4
Description : Spherical shape of mercury droplets is due to its (A) High viscosity (B) Low surface tension (C) High density (D) High surface tension
Last Answer : Option D
Description : Surfactants.................................. the surface tension of spray droplets a). do not affect b). decrease c). increase d). All
Last Answer : b). decrease
Description : From the intestinal lumen through to the tissues - what is the route of nutrients after digestion?
Last Answer : Monosaccharides, amino acids, mineral salts and water are absorbed by the intestinal epithelium and collected by capillary vessels of the intestinal villi. From the capillaries, nutrients go to the ... returns to the heart where it is pumped to the tissues distributing nutrients and oxygen.
Description : Which type of diarrhea is caused by increased production and secretion of water and electrolyes by the intestinal mucosa into the intestinal lumen? a) Secretory diarrhea Secretory diarrhea is usually ... bowel. d) Diarrheal disease The most common cause of diarrheal disease is contaminated food.
Last Answer : a) Secretory diarrhea Secretory diarrhea is usually high volume diarrhea and is caused by increased production and secretion of water and electrolytes by the intestinal mucosa into the intestinal lumen.
Description : Tricyclic antidepressants can alter the oral absorption of many drugs by: A. Complexing with the other drug in the intestinal lumen B. Altering gut motility C. Altering gut flora D. Damaging gut mucosa
Last Answer : B. Altering gut motility
Description : Secretin causes all of the following except (A) Secretion of pancreatic juice (B) Secretion of bile (C) Inhibition of gastric secretion (D) Stimulation of intestinal motility
Last Answer : Answer : D
Description : Brass container is suitable for storing (A) Aqueous ammonia (B) Beer (C) H2SO4 (95%) (D) Phosphoric acid (95%)
Last Answer : (B) Beer
Description : Lead pipes are not safe for carrying drinking water because water containing dissolved oxygen attacks lead thereby forming poisonous Pb (OH)2 . Lead pipes are readily corroded by (A) Dilute HCI (B) Acetic acid (C) Concentrated H2SO4 (D) None of these
Last Answer : (B) Acetic acid
Description : Lead pipes are not safe for carrying drinking water, because water, containing dissolved oxygen attacks lead thereby forming poisonous Pb(OH)2 . Lead pipes are readily corroded by (A) Dilute HCl (B) Acetic acid (C) Concentrated H2SO4 (D) None of these
Description : Ethyl alcohol reacts with concentrated H2SO4 at 140°C to form (a) Acetone (b) Ethylene (c) Diethyl ether (d) Acetic acid
Last Answer : Diethyl ether
Description : Gastric lipae is activated in the presence of (A) Bile salts (B) Cu++ (C) K+ (D) Na+
Description : Conversion of β-carotene into retinal requires the presence of (A) β-Carotene dioxygenase (B) Bile salts (C) Molecular oxygen (D) All of these
Description : Cholesterol, bile salts, vitamin D and sex hormones are (A) Mucolipids (B) Glycolipids (C) Phospholipids (D) Isoprenoid lipids
Description : All the following statements about obstructive jaundice are true except (A) Prothrombin time may be prolonged due to impaired absorption of vitamin K (B) Serum alkaline phosphatase may be raised ... systemic circulation due to biliary obstruction (D) There is no defect in conjugation of bilirubin
Description : All the following statements about obstructive jaundice are true except (A) Conjugated bilirubin in serum is normal (B) Total bilirubin in serum is raised (C) Bile salts are present in urine (D) Serum alkaline phosphatase is raised
Description : Pancreatic lipase requires for its activity: (A) Co-lipase (B) Bile salts (C) Phospholipids (D) All of these
Description : The precursor of bile salts, sex hormones and vitamin D is (A) Diosgenin (B) Cholesterol (C) Campesterol (D) Ergosterol
Description : Trypsinogen is converted to active trypsin by (A) Enterokinase (B) Bile salts (C) HCl (D) Mg++
Description : Pepsinogen is converted to active pepsin by (A) HCl (B) Bile salts (C) Ca++ (D) Enterokinase
Description : Rothera test is not given by (A) β-hydroxy butyrate (B) bile salts (C) Glucose (D) None of these
Last Answer : A
Description : How are bile salts formed?
Last Answer : Bile acids conjugated with taurine or glycine.
Description : What is enterohepatic circulation of bile salts?
Last Answer : They are separately reabsorbed from the ileum and returned to the liver to be re-excreted again to gut.
Description : What happens to the bile salts of micelle?
Last Answer : The bile salts are left behind.
Description : What is the chemical name of bile salts?
Last Answer : Sodium glycocholate and sodium taurocholate.
Description : How bile salts help in the absorption of dietary lipids?
Last Answer : By emulsifying the lipids and producing micelles of lipids.
Description : Aquaregia is a mixture of the following in the ratio 1 : 3 by volume– (1) cone. HNO3 and cone. HCL (2) conc. HNO3 and conc. H2SO4 (3) dil. HCl and dil. HNO3 (4) cone. HCl and cone. HNO3
Last Answer : (3) dil. HCl and dil. HNO3 Explanation: Aqua regia or nitro-hydrochloric acid is a highly corrosive mixture of acids which is formed by freshly mixing concentrated Nitric acid (HNO3) and Hydrochloric acid (HCl), optimally in a volume ratio of 1:3. It is used in dissolving gold.
Description : DDT is prepared by the reaction of chlorobenzene with (in the presence of conc. H2SO4) (a) Chloral (b) Chlorine (c) Chloroform (d) Carbon tetrachloride
Last Answer : Chloral
Description : Which is the best reagent to accomplish the following conversion? (a) Conc. H2SO4 (b) Na (c) Conc. HCl (d) Mg, then H2O
Last Answer : Mg, then H2O
Description : Ascorbic acid is required to synthesise all of the following except (A) Collagen (B) Bile acids (C) Bile pigments (D) Epinephrine
Description : A compound normally used to conjugate bile acids is (A) Serine (B) Glycine (C) Glucoronic acid (D) Fatty acid
Description : Cholesterol is the precursor for the biosynthesis of (A) fatty acid (B) prostaglandins (C) bile acids (D) sphingmyelin
Description : In human and other ureotelic organisms, the end product of amino acid nitrogen metabolism: (A) Bile acids (B) Ketone bodies (C) Urea (D) Barium sulphate
Description : Synthetic detergents are prepared from (1) potassium salts of higher fatty-acids (2) sodium salts of higher fat acids (3) hydrocarbons of petroleum (4) glycerides
Last Answer : (3) hydrocarbons of petroleum Explanation: Synthetic detergents are prepared from hydrocarbons of petroleum. They are sodium salts of long chain benzene sulphonic acids or sodium salts of long chain ... are soluble in water. Therefore cleansing action of detergents remains unaffected in hard water.