Description : Which of one ring in the structure of the following is aromatic? (A) Androgens (B) Estrogens (C) Cholesterol (D) Bile acids
Last Answer : Answer : B
Description : The principal rate limiting step in the biosynthesis of bile acids is at the (A) 7-Hydroxylase reaction (B) 12 α-Hydroxylase reaction (C) Conjugation reaction (D) Deconjugation reaction
Last Answer : Answer : A
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 : 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 : Ascorbic acid is required to synthesise all of the following except (A) Collagen (B) Bile acids (C) Bile pigments (D) Epinephrine
Last Answer : Answer : C
Description : A compound normally used to conjugate bile acids is (A) Serine (B) Glycine (C) Glucoronic acid (D) Fatty acid
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 : 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 : The basic amino acids are (A) Lysine (B) Bile acids (C) Glycine (D) Alanine
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
Description : What is the function of bile acids?
Last Answer : They are the major route of excretion of cholesterol and they are required for absorption of triacyl glycerol.
Description : Give examples of derived amino acids.
Last Answer : Hydroxy proline, hydroxy lysine, ornithine, cit- rulline, homocysteine.
Description : Prostaglandins are derived from what substance?
Last Answer : Prostaglandins are derived from the PUFA. The Series 2 (with two double bonds) are derived from arachidonic acid. All naturally occurring PGs belong to the 2-series.
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?
Last Answer : (A) Bile Salts
Description : On average red blood cells live around 120 days. The spleen is the main organ where old red blood cells are destroyed. During the red blood cell destruction the heme groups turn into bilirubin and this substance is then captured by the liver and later excreted in the bowels as part of the bile.
Last Answer : What are the functions of the spleen?
Description : Sulphur containing amino acids after catabolism produces a substance which is excreted: (A) SO2 (B) HNO3 (C) H2SO4 (D) H3PO4
Description : Which statement is NOT true about non-steroid (peptide) hormones? A) They are derived from peptides, proteins, polypeptides, and derivatives of amino acids. B) They bind to receptors on the cell surface. ... They create an enzyme cascade effect. E) They enter the cell in order to have an effect.
Last Answer : E) They enter the cell in order to have an effect.
Description : Aromatic compounds are generally derived from what substance?
Last Answer : ANSWER: BENZENE
Description : An extracellular fluid having a higher concentration of chloride than serum is (A) Bile (B) Sweat (C) CSF (D) Pancreatic juice
Description : Bile pigments are not present in urine in (A) Haemolytic jaundice (B) Hepatic jaundice (C) Obstructive jaundice (D) Rotor’s syndrome
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
Description : Bile salts make emulsification with fat for the action of (A) Amylose (B) Lipase (C) Pepsin (D) Trypsin
Description : Gastric lipae is activated in the presence of (A) Bile salts (B) Cu++ (C) K+ (D) Na+
Description : The pancreatic amylase activity is increased in the presence of (A) Hydrochloric acid (B) Bile salts (C) Thiocyanate ions (D) Calcium ions
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
Last Answer : Answer : D
Description : Bile is produced by (A) Liver (B) Gall-bladder (C) Pancreas (D) Intestine
Description : Cholesterol, bile salts, vitamin D and sex hormones are (A) Mucolipids (B) Glycolipids (C) Phospholipids (D) Isoprenoid lipids
Description : Cholesterol is excreted as such into ________. (A) Urine (B) Faeces (C) Bile (D) Tears FATS AND FATTY ACID METABOLISM 99
Description : Main metabolic end product of cholesterol: (A) Coprosterol (B) 5-pregnenolone (C) Bile acid (D) Glycine
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 : Serum albumin: globulin ratio is altered in (A) Gilbert’s disease (B) Haemolytic jaundice (C) Viral hepatitis (D) Stones in bile duct
Description : In haemolytic jaundice, urine shows (A) Absence of bile pigments and urobilinogen (B) Presence of bile pigments and urobilinogen (C) Absence of bile pigments and presence of urobilinogen (D) Presence of bile pigments and absence of urobilinogen FATS AND FATTY ACID METABOLISM 91
Description : In obstructive jaundice, urine shows (A) Absence of bile pigments and urobilinogen (B) Presence of bile pigments and urobilinogen (C) Absence of bile pigments and presence of urobilinogen (D) Presence of bile pigments and absence of urobilinogen
Description : Bile pigments are absent and urobilinogen increased in urine in (A) Haemolytic jaundice (B) Hepatocellular jaundice (C) Obstructive jaundice (D) Rotor’s syndrome
Description : Bile pigments are present and urobilinogen absent in urine in (A) Haemolytic jaundice (B) Hepatocellular jaundice (C) Obstructive jaundice (D) Crigler-Najjar syndrome
Description : Co-lipase is a (A) Bile salt (B) Vitamin (C) Protein (D) Phospholipid
Description : Pancreatic lipase requires for its activity: (A) Co-lipase (B) Bile salts (C) Phospholipids (D) All of these
Description : A digestive secretion that does not contain any digestive enzyme is (A) Saliva (B) Gastric juice (C) Pancreatic juice (D) Bile
Description : A complete absence of fecal urobilinogen is strongly suggestive of (A) Obstruction of bile duct (B) Hemolytic jaundice (C) Intrahepatic cholestasis (D) Malignant obstructive disease
Description : The precursor of bile salts, sex hormones and vitamin D is (A) Diosgenin (B) Cholesterol (C) Campesterol (D) Ergosterol
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
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
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.