Description : 25-hydroxylation of Vitamin D3 takes place in (A) Liver (B) Kidneys (C) Intestines (D) Pancreas
Last Answer : Answer : A
Description : 1-hydroxylation of 25-hydroxy Vitamin D3 takes place in (A) Liver (B) Kidneys (C) Intestine (D) Pancreas
Last Answer : Answer : B
Description : 25-hydroxylation of vitamin D3 takes place in (A) Liver (B) Kidneys (C) Intestine (D) Pancreas
Description : 1-hydroxylation of 25-OH vitamin D3 takes place in (A) Liver (B) Kidneys (C) Intestine (D) Pancreas
Description : Dietary purines are catabolised in (A) Liver (B) Kidneys (C) Intesitnal mucosa (D) All of these
Last Answer : Answer : C
Description : Ferritin is present in (A) Intestinal mucosa (B) Liver (C) Spleen (D) All of these
Last Answer : Answer : D
Description : Alkaline phosphatase is present in (A) Liver (B) Bones (C) Intestinal mucosa (D) All of these
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 : 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 : Adrenaline is inactive orally because it is: A. Not absorbed from the gastrointestinal tract B. Destroyed by gastric acid C. Completely metabolized in the intestinal mucosa and liver before reaching systemic circulation D. Taken up by adrenergic nerve endings of the intestinal wall, liver and lungs
Last Answer : C. Completely metabolized in the intestinal mucosa and liver before reaching systemic circulation
Description : In renal rickets, the following hydroxylation of Vitamin D3 does not take place: (A) 25 (B) 1 (C) 24 (D) 7
Description : In retinal rickets, the following hydroxylation of Vitamin D3 does not take place: (A) 25 (B) 1 (C) 24 (D) 7
Description : Esterification of cholesterol occurs mainly in (A) Adipose tissue (B) Liver (C) Muscles (D) Kidneys
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 : 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 : 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
Description : The harmone acting directly on intestinal mucosa and stimulating glucose absorption is (A) Insulin (B) Glucagon (C) Thyroxine (D) Vasopressin
Description : Retinal is reduced to retinol in intestinal mucosa by a specific retinaldehyde reductase utilising (A) NADPH + H+ (B) FAD (C) NAD (D) NADH + H+
Description : Vitamin B1 coenzyme (TPP) is involved in (A) Oxidative decarboxylation (B) Hydroxylation (C) Transamination (D) Carboxylation
Description : Hydroxylation of Proline and Lysine in a protein is effected by (A) Vitamin B1 (B) Vitamin B2 (C) Vitamin B6 (D) Vitamin C
Description : Oral mucosa and skin pigmentation occurs in patient with:** A. Diabetes mellitus B. Addison’s disease C. Multiple myeloma D. Squamous cell carcinoma E. Bright’s disease F. Cushing’s disease
Last Answer : B. Addison’s disease
Description : Hydroxylation of 25-hydroxy cholecalciferol is promoted by (A) Cytochrome A (B) Panthyroid hormone (C) Cytochrome b (D) cAMP
Description : Hydroxylation of 25-hydroxy cholecalciferol is promoted by (A) Cytochrome - a (B) Parathyroid hormone (C) Cytochrome-b (D) CAMP
Description : Which of the following is not produced by the brush border cells of the intestinal mucosa.
Last Answer : Which of the following is not produced by the brush border cells of the intestinal mucosa. A. dipeptidases B. nucleosidases C. lipases D. staeapsin
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 : Lesions of avian pox comprise of A A. raised confluent blackish lesions on the comb B. ulcers on the intestinal mucosa C. pustules on the mucosa of proventriculus D. None of these
Last Answer : raised confluent blackish lesions on the comb
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 : 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 : Crohn's disease is a condition of malabsorption caused by a) inflammation of all layers of intestinal mucosa. Crohn's disease is also known as regional enteritis and can occur ... to lactose intolerance. d) gastric resection. Postoperative malabsorption occurs after gastric or intestinal resection.
Last Answer : a) inflammation of all layers of intestinal mucosa. Crohn’s disease is also known as regional enteritis and can occur anywhere along the GI tract, but most commonly at the distal ileum and in the colon.
Description : The success of oral rehydration therapy of diarrhoea depends upon the following process in the intestinal mucosa: A. Sodium pump mediated Na+ absorption B. Glucose coupled Na+ absorption C. Bicarbonate coupled Na+ absorption D. Passive Na+ diffusion secondary to nutrient absorption
Last Answer : B. Glucose coupled Na+ absorption
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 : The conversion of carotenoids to Vitamin A takes place in (A) Intestine (B) Liver (C) Kidney (D) Skin
Last Answer : (A) Oxidative decarboxylation
Description : Total synthesis of creatine can be done by (A) Liver (B) Kidneys (C) Pancreas (D) Heart
Description : Hyper insulinism can cause coma since (A) The chief nutrient for the brain is glucose (B) The chief nutrient for the heart is glucose (C) The glucostatic role of the liver is damaged (D) The kidneys are damaged
Description : Gluconeogenesis does not occur in (A) Brain (B) Kidneys (C) Muscles (D) Liver
Description : Glucose-1-phosphate liberated from glycogen cannot be converted into free glucose in (A) Liver (B) Kidneys (C) Muscles (D) Brain
Description : Glycolysis is anaerobic in (A) Liver (B) Brain (C) Kidneys (D) Erythrocytes
Description : Acetoacetic acid and β-OH butyric acid are formed as (A) Kidneys (B) Heart (C) Liver (D) Intestine
Description : Prothrombin is synthesised in (A) Erythrocytes (B) Reticulo-endothelial cells (C) Liver (D) Kidneys
Description : The major site of urea synthesis is (A) Brain (B) Kidneys (C) Liver (D) Muscles
Description : The normal resting state of humans, most of the blood glucose burnt as “fuel” is consumed by (A) Liver (B) Brain (C) Kidneys (D) Adipose tissue
Last Answer : B
Description : The hydrolysis of Glucose-6-phosphate is catalysed by a specific phosphatase which is found only in (A) Liver, intestines and kidneys (B) Brain, spleen and adrenals (C) Striated muscle (D) Plasma
Last Answer : A
Description : The tissues with the highest total glycogen content are (A) Muscle and kidneys (B) Kidneys and liver (C) Liver and muscle (D) Brain and Liver
Last Answer : C
Description : Glucose-6-phosphatase is not present in (A) Liver and kidneys (B) Kidneys and muscles (C) Kidneys and adipose tissue (D) Muscles and adipose tissue
Last Answer : D
Description : Calcium absorption is interfered by (A) Protein in diet (B) Phytic acid in cereals (C) Alkaline intestinal pH (D) Vitamin D
Description : Vitamin C enhances the intestinal absorption of (A) Potassium (B) Iodine (C) Iron (D) None of these
Description : All of the following statements about primary gout are true except (A) Uric acid stones may be formed in kidneys (B) Arthritis of small joints occurs commonly (C) Urinary excretion of uric acid is decreased (D) It occurs predominantly in males