Description : Absorption of phosphorous from diet is favoured by (A) Moderate amount of fat (B) Acidic environment (C) High calcium content (D) High phytic acid
Last Answer : Answer : B
Description : Calcitriol facilitates calcium absorption by increasing the synthesis of the following in intestinal mucosa: (A) Calcium Binding Protein (B) Alkaline Phosphatase (C) Calcium-dependent ATPase (D) All of these
Last Answer : Answer : D
Description : Vitamin D absorption is increased in (A) Acid pH of intestine (B) Alkaline pH of intestine (C) Impaired fat absorption (D) Contents of diet
Last Answer : Answer : A
Description : Iron absorption is hampered by (A) Ascorbic acid (B) Succinic acid (C) Phytic acid (D) Amino acid
Last Answer : Answer : C
Description : The hydrogen bonds between peptide linkages of a protein molecules are interfered by (A) Guanidine (B) Uric acid (C) Oxalic acid (D) Salicylic acid
Description : Intestinal absorption of magnesium is increased in (A) Calcium deficient diet (B) High calcium diet (C) High oxalate diet (D) High phytate diet
Description : Characteristics of Vitamin D and its metabolites include which one of the following? (a) Act to decrease serum levels of calcium (b) Activation of their Vitamin D receptors increases cellular CAMP ... Vitamin D increase renal excretion of calcium (e) Vitamin D deficiency results in Pager's disease
Last Answer : Ans: C
Description : PTH causes all of the following except (A) Increased intestinal absorption of calcium (B) Increased intestinal absorption of phosphate (C) Increased tubular reabsorption of calcium (D) Increased tubular reabsorption of phosphate
Description : Intestinal absorption of zinc is retarded by (A) Calcium (B) Cadmium (C) Phytate (D) All of these
Description : A high plasma calcium level decreases intestinal absorption of calcium by (A) Stimulating the secretion of parathormone (B) Inhibiting the secretion of parathormone (C) Decreasing the synthesis of cholecalciferol (D) Inhibiting the secretion of thyrocalcitonin
Description : Intestinal absorption of calcium occurs by (A) Active takeup (B) Simple diffusion (C) Facilitated diffusion (D) Endocytosis
Description : Absorption of calcium is increased on a (A) High protein diet (B) Low protein diet (C) High fat diet (D) Low fat diet
Description : Vitamin C enhances the intestinal absorption of (A) Potassium (B) Iodine (C) Iron (D) None of these
Description : The hydrogen bonds between peptide linkages are interfered by (A) Guanidine (B) Uric acid (C) Salicylic acid (D) Oxalic acid
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 : Use of an artificial kidney during hemodialysis may result in (A) Nitrogenous waste build-up in the body (B) Non-elimination of excess potassium ions (C) Reduced absorption of calcium ions from gastro-intestinal tract (D) ... are correct. (c) (B) and (C) are correct. (d) (C) and (D) are correct.
Last Answer : d) (C) and (D) are correct.
Description : Alkaline phosphatase is present in (A) Liver (B) Bones (C) Intestinal mucosa (D) All of these
Description : Absorption of Griseofulvin increases with --------------diet. a) Carbohydrate b) Fatty c) protein d) vitamin
Last Answer : b) Fatty
Description : Calcium absorption is inferred by (A) Fatty acids (B) Amino acids (C) Vitamin D (D) Vitamin B12
Description : Calcium absorption is increased by (A) Vitamin D (B) Vitamin C (C) Vitamin K (D) Vitamin E
Description : Absorption of calcium decreases if there is high concentration in the diet of (A) Copper (B) Sodium (C) Magnesium (D) Cadmium
Description : Iron absorption is hampered by (A) In achlorhydria (B) When ferritin content of intestinal mucosa is low (C) When saturation of plasma transferring is low (D) When erythropoietic activity is increased
Description : Intestinal absorption of chromium is shared with (A) Mn (B) Mg (C) Ca (D) Zn
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 : The harmone acting directly on intestinal mucosa and stimulating glucose absorption is (A) Insulin (B) Glucagon (C) Thyroxine (D) Vasopressin
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 percentage of nitrogen retained in the body after absorption of diet represents (A) Digestibility coefficient of proteins (B) Biological value of proteins (C) Protein efficiency ratio (D) Net protein utilisation
Description : Which of the following vitamins help in the absorption of calcium? (1) Vitamin A (2) Vitamin D (3) Vitamin B (4) Vitamin C
Last Answer : (2) Vitamin D Explanation: Vitamin D is essential in helping the body absorb and use calcium; in fact, the body cannot absorb calcium at all without some vitamin D. Vitamin D helps our ... calcium from the food we eat and helps build stronger bones, partly by increasing the absorption of calcium.
Description : The following are true about calcium regulating hormones: a. calcitonin increases the plasma calcium concentration b. vitamin D is produced in the skin c. vitamin D is metabolized to its active form in the liver and kidney. d. vitamin D increases calcium absorption from the gut
Last Answer : vitamin D increases calcium absorption from the gut
Description : Decrease in absorption of which of the following vitamins in the geriatric patient results in pernicious anemia? a) B12 Vitamin B12 requires the intrinsic factor secreted by the gastric mucosa for ... results in an inability to absorb calcium. d) B6 Vitamin B6 affects neuromuscular function.
Last Answer : a) B12 Vitamin B12 requires the intrinsic factor secreted by the gastric mucosa for absorption.
Last Answer : Vitamin D
Description : 25-Hydroxylation of vitamin D occurs in (A) Skin (B) Liver (C) Kidneys (D) Intestinal mucosa
Description : Deficiency of vitamin B12 can occur because of (A) Decreased intake of vitamin B12 (B) Atrophy of gastric mucosa (C) Intestinal malabsorption (D) All of these
Description : Absorption of Vitamin B12 requires the presence of (A) Pepsin (B) Hydrochloric acid (C) Intrinsic factor (D) Boh (B) and (C)
Description : The Instrinisic Factor (HCl and mucoproteins) present in the gastric juice help in the absorption of (A) Vitamin B2 (B) Tocopherols (C) Folic acid (D) Vitmain B12
Description : A 19 year-old female is referred following a visit to the dentist where marked erosion of her teeth was noted. She was entirely asymptomatic and her only medication was the oral contraceptive pill ... ) Bulimia nervosa 2) Conn's syndrome 3) Laxative abuse 4) Pregnancy 5) Primary hypoparathyroidism
Last Answer : Answers-5 This patient has tooth erosion associated with hypokalaemic metabolic alkalosis and hypocalcaemia. This suggests a diagnosis of hypoparathyroidism. Conn's is unlikely in this age group, is ... raised alkaline phosphatase would not be expected. Early pregnancy would not fit this picture.
Description : Serum biochemistry of a 60 year old man revealed calcium of 1.98 mmol/l and phosphate of 0.55 mmol/l with an alkaline phosphatase of 450 IU/l.Which among the following mosts suits ... biochemistry? 1) Osteoporosis 2) Osteomalacia 3) Pagets Disease 4) Secondary Hyperparathyroidism 5) Renal failure
Last Answer : Answers-2 Osteomalacia is associated with low calcium and phosphate with raised alkaline phosphatase. Serum biochemistry is normal in osteoporosis. Pagets disease is associated with normal ... renal failure when tertiary hyperparathyroidism sets in there is low calcium with raised phosphate.
Description : All the following statements about ceruloplasmin are correct except (A) It is a copper-containing protein (B) It possesses oxidase activity (C) It is synthesised in intestinal mucosa (D) Its plasma level is decreased inWilson’s disease
Description : From dietary protein as well as from the urea present in fluids secreted into the gastrointestinal tract intestinal bacteria produce (A) Carbondioxide (B) Ammonia (C) Ammonium sulphate (D) Creatine
Description : More than half of the protein of the liver and intestinal mucosa are broken down and resynthesised in (A) 10 days (B) 12 days (C) 15 days (D) 18 days
Description : Kwashiorkor results from (A) Vitamin A deficiency (B) Vitamin D deficiency (C) Deficiency of minerals in diet (D) Protein and caloric deficiency in diet
Description : The greatest buffering capacity at physiologic pH would be provided by a protein rich in which of the following amino acids ? (A) Lysine (B) Histidine (C) Aspartic acid (D) Valine
Description : Protein content of cereals ranges from (a) 8-12% (b) 12-15% (c) 15-20% (d) 20-25%
Last Answer : (a) 8-12%
Description : Generally, cereals are deficient in – a) Protein b) Tryptophan c) Methionine d) Lysine
Last Answer : a) Protein
Description : A lipotropic factor is (A) Choline (B) Palmitic acid (C) Calcium (D) Vitamin C
Description : Consumption of raw eggs can cause deficiency of (A) Calcium (B) Lipoic acid (C) Biotin (D) Vitamin A
Description : Which of the following concerning the pH of urine is correct? 1) is a useful indicator of the acid/base balance of the blood 2) rises on a vegetarian diet 3) is determined by the concentration of ... lower than 5.5 in renal tubular acidosis 5) would be above 7.0 after prolonged and severe vomiting
Last Answer : Answers-2 c - excretion of ammonium occurs when an acid urine is produced but the pH of urine is of course determined by the concentration of H+ ions d-unable to lower the pH to ... and distal nephron and this perpetuates the metabolic alkalosis until the fluid balance is restored with IV fluids.
Description : After digestion the next step is absorption done by cells of the mucous membrane of the intestine. For this task a large absorption surface is an advantage. How is it possible in the small internal space of the body of a pluricellular organism to present a large intestinal surface?
Last Answer : Evolution tried to solve this problem in two ways. The simplest is the long and tubular shape of the bowels (approximately eight meters in extension), making possible that numerous ... function of increasing the absorption surface too. Digestion System - Image Diversity: intestinal villi microvilli
Description : From the internal surface to the external surface, the digestive tube wall is made of mucosa (epithelial tissue responsible for the intestinal absorption), submucosa (connective tissue beneath the ... within the abdominal cavity. Digestion System - Image Diversity: histology of the digestive tube
Last Answer : What is the location of the salivary glands in humans?
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