16. Digestion and Absorption : MCQs
Part of bile useful in digestion is (2007) Bile pigments Bile salts Bile matrix All the above
Bile salts
Most abundant mineral of animal is (2010) Iron Calcium Potassium Sodium
Calcium
Salivary amylase of saliva begins digestion of (2010) Carbohydrate Nucleic acid Fat Protein
Carbohydrate
First portion of small intestine is called (2011) Jejunum Ileum Duodenum Cystic duct
Duodenum
The enzyme that is not present in succus entericus is (2015) Nucleases Nucleosidase Lipase Maltase
Nucleases
Emulsification of fats by bile juice takes place in (2015) Liver Stomach Oesophagus Duodenum
Duodenum
Ptyalin is inactivated by a component of gastric juice (2011) Rennin Pepsin Mucus HCl
HCl
Sphincter of Oddi is associated with opening of (2011) Hepato-pancreatic ampulla Oesophagus Common hepatic duct Pyloric stomach
Hepato-pancreatic ampulla
Approximately how much large is whole digestive system in a healthy human (2010) 3 m 5 m 7 m 9 m
7 m
Which one is fat soluble? (2008) A, D, E, K A, D, C, K A, B, C, K A, B, D, E
A, D, E, K
Outermost layer in the wall of alimentary canal is (2010) Muscularis Serosa Submucosa Mucosa
Serosa
Which is true about digestion and absorption of food? (2009) 60% of starch is hydrolysed by salivary amylase Oxyntic cell secrete pepsinogen Chylomicrons are small lipoprotein particles passed in intestine into blood capillaries Fructose and amino acids are absorbed in intestine with help of carrier ions of Na+
Fructose and amino acids are absorbed in intestine with help of carrier ions of Na+
Which pair reaches the stomach totally undigested (2009) Fat, cellulose Starch, cellulose. Protein, starch Starch, fat.
Fat, cellulose
Column I Column II a. Salivary amylase 1. Proteins b. Bile salts 2. Milk proteins c. Rennin 3. Starch d. Pepsin 4. Lipids e. Steapsin 5. Emulsification of fats a—5, b—4, c—1, d—2, e—3 a—2, b—3, c—4, d—5, e—1 a—2, b—4, c—3, d—1, e—5 a—3, b—5, c—1, d—2, e—4
a—3, b—5, c—1, d—2, e—4
Column I Column II i. Goblet cells a. Antibacterial agent ii. Lysozyme b. Mucus iii. Saliva c. HCl iv. Oxyntic cells d. Sublingual gland i—b, ii—a, iii—d, iv—c i—c, ii—a, iii—d, iv—b i—a, ii—c, iii—d, iv—b i—b, ii—c, iii—a, iv—d
i—b, ii—a, iii—d, iv—c
Jaw of shark contains (2012) Thecodont teeth Pleurodont teeth Acrodont teeth None of the above
Acrodont teeth
Osteomalacia is deficiency disease of (2011) Infants due protein-energy malnutrition Adults due to protein-energy malnutrition Adults due to vitamin D deficiency Infants due to vitamin D deficiency
Adults due to vitamin D deficiency
Common passage for bile and pancreatic juice is (2010) Ampulla of Vater Duct of Wirsung Ductus coledochus Duct of Santorini
Ampulla of Vater
Pernicious anaemia is caused by deficiency of vitamin (2009) B1/ Thiamine B12/ Cobalamine. C/Ascorbic acid D/ Calciferol
B12/ Cobalamine
Acid neutralizer present in mucus of saliva (2016) Bicarbonate ion Thiocynate Sodium acetate Sodium hydroxide
Bicarbonate ion
Stool in infant feeding entirely on whitish mother's milk is yellowish due to (2009) Intestinal juice Pancreatic juice Bile pigments Undigested milk casein
Bile pigments
What is true for vitamin C? (2007) It is ascorbic acid It is obtained from citrus fruit It is fumaric acid Both A and B
Both A and B
Which of the following statements is not correct? (2015) Oxyntic cells are present in the mucosa of stomach and secrete HCl Acini are present in the pancreas and secrete carboxypeptidase Brunner's glands are present in the submucosa of stomach and secrete pepsinogen Goblet cells are present in the mucosa of intestine and secrete mucus.
Brunner's glands are present in the submucosa of stomach and secrete pepsinogen
Jaundice is a disease of (2010) Kidney Liver/Digestive system Pancreas Duodenum
Liver/Digestive system
Thecodont, diphyodont and heterodont teeth are characteristic of (2009) Reptiles Aves Mammals/man Amphibians
Mammals/man
Exclusive holozoic nutrition is seen in (2011) Housefly Spider Man Shark
Man
Enamel is composed principally of (2016) Ca phosphate Ca sulphate Ca chloride Na phosphate
Ca phosphate
Digestion of cellulose in Rabbit takes place in (2010) Caecum Colon Rectum Ileum
Caecum
Which one of the following statements is correct with respect to digestion in humans (2015) One pair each of parotid, sub-maxillary and sublinguals make up salivary glands About 50—60% starch is digested in the mouth Salivary amylase breaks starch into maltose in the mouth at an alkaline pH About 30% maltose is broken down to glucose in the mouth itself
One pair each of parotid, sub-maxillary and sublinguals make up salivary glands
What will happen if secretion of parietal cells of gastric glands is blocked? (2008) Gastric juice is deficient of pepsinogen Gastric juice is deficient of chymosin Deficiency of HCl leads to non-conversion of inactive pepsinogen into active pepsin Non-release of enterokinase from duodenal mucosa and non-conversion of trypsinogen into trypsin
Deficiency of HCl leads to non-conversion of inactive pepsinogen into active pepsin
One of the following movements is not completely involuntary. It is (2012) Peristalsis Systole of ventricles Dilation of eye pupil Deglutition
Deglutition
Type of teeth present in humans is (2010) Diphyodont and homodont Monophyodont and thecodont Monophyodont and homodont Diphyodont and heterodont
Diphyodont and heterodont
Which is not a disorder of digestive system (2010) Emphysema Jaundice Constipation Vomiting
Emphysema
Bile salts take part in (2010) Digestion of carbohydrates Breakdown of proteins Emulsification of fat Absorption of glycerol
Emulsification of fat
In the complete absence of which the duodenal digestion of chyme proteins not possible (2010) Enterokinase Dil HCl Gastrin All the above
Enterokinase
Which are all preteolytic enzymes? (2010) Ptyalin, trypsin, pepsin Lipase, erepsin, trypsin Erepsin, trypsin, pepsin Pepsin, nuclease, nucleotidase
Erepsin, trypsin, pepsin
Hyperacidity results due to (2010) Excess secretion of HCl Excess eating Excess secretion of H2SO4 Intake of less water
Excess secretion of HCl
Which is absorbed in ileum? (2009) Vitamin K Bile salt Fat Glucose
Glucose
Which one is not a vitamin deficiency disease? (2010) Scurvy Keratomalacia Goitre Xerophthalmia
Goitre
Bilirubin is formed by breakdown product of (2011) Haemoglobin Haemocyanin Haemopoietin Haematin
Haemoglobin
Special feature of bile juice is that it (2011) Has no enzyme Has amylase Contains lipase Contains HCl
Has no enzyme
Nutrition involving engulfment of whole or parts of a plant or animal in solid or liquid state is known as (2009) Holozoic Saprozoic Parasite Symbiotic
Holozoic
Back flow of faecal matter from large intestine is prevented by (2011) Epiglottis Shincter of Oddi Ileocaecal valve Gastro-oesophageal sphincter
Ileocaecal valve
Where is protein digestion accomplished? (2007) Stomach Ileum Rectum Duodenum
Ileum
Which teeth of human are shovel-shaped and used for nibbing, cutting and tearing? (2011) Canines Premolars Molars Incisors
Incisors
Blood of anaemic patient has large immature nucleated erythrocytes without haemoglobin. His diet should be supplemented with (2008) Folic acid and cobalamine Thiamine Iron compounds Riboflavin
Iron compounds
Which is caused by deficiency of protein (2009) Night blindness Beri - Beri Xerophthalmia Kwashiorkor
Kwashiorkor
Bile salts activate enzyme (2010) Pepsinogen Trypsinogen Lipase Pancreatic amylase
Lipase
Largest gland in human body is (2008) Liver Pancreas Pituitary Thyroid
Liver
As breast feeding is replaced by less nutritive food low in proteins and calories, infants below the age of one year are likely to suffer from (2009) Rickets Marasmus Kwashiorkor Pellagra
Marasmus
Secretory glands occur in gut layer (2008) Serosa Muscularis Mucosa Submucosa
Mucosa
Wall of stomach is protected against action of HCl by (2010) Epidermal layer Mesodermal layer Mucus layer Muscular layer
Mucus layer
HCl is secreted by (2010) Zymogen cells Kupffer's cells Oxyntic/parietal cells Mucous cells
Oxyntic/parietal cells
Gastric juice contains (2009) Pepsin, lipase and rennin Trypsin, lipase and rennin Trypsin, pepsin and lipase Trypsin, pepsin and rennin
Pepsin, lipase and rennin
Gastric juice of infants contains (2015) Pepsinogen, lipase, rennin Amlyse, rennin, pepsinogen Maltase, pepsinogen, rennin Nuclease, pepsinogen, lipase
Pepsinogen, lipase, rennin
Aggregates of lymphoid tissue present in distal portion of small intestine are known as (2011) Villi Rugae Choroid plexus Peyer's patches
Peyer's patches
The primary dentition in human differs from permanent dentition in not having one of the following type of teeth (2015) Premolars Molars Incisors Canine
Premolars
If for some reason the parietal cells of the gut epithelium become partially nonfunctional, which is likely to happen (2010) Pancreatic enzymes, specially trypsin and lipase will not work efficiently Proteins will not be adequately hydrolysed by pepsin to proteoses and peptones pH of stomach will fall abruptly Steapsin will not be effective
Proteins will not be adequately hydrolysed by pepsin to proteoses and peptones
Cyanocobalamine is required for the maturation (2012) RBC WBC Lymph Plateletes
RBC
In mammals a significant initial role in the digestion of milk is played by (2011) Amylase Intestinal bacteria Rennin Invertase
Rennin
The initial step in the digestion of milk in humans is carried out by (2014) Pepsin Lipase Trypsin Rennin
Rennin
Fat soluble vitamin and its related deficiency disease is (2007) Retinol—Xerophthalmia Cobalamine—Beriberi Ascorbic acid—Scurvy Calciferol—Pellagra
Retinol—Xerophthalmia
Mucosal layer of stomach has irregular folds known as (2011) Villi Rugae Lacteals Lumen
Rugae
Crypts of Lieberkuhn are found in (2009) Small intestine, secrete digestive enzymes Pancreas, secrete pancreatic juice Stomach, secrete gastric juice Liver, secrete bile
Small intestine, secrete digestive enzymes
If for some reasons our goblet cells are nonfunctional, this will advrsely affect (2010) Secretion of sebum from sebaceous glands Maturation of sperms Smooth movement of food down the intestine Production of somatostatin
Smooth movement of food down the intestine
Which of the following guards the opening of hepatopancreatic duct into the duodenum? (2016) Semilunar valve Ileocaecal valve Pyloric sphincter Sphincter of Oddi
Sphincter of Oddi
Which gland does not take part in saliva production (2011) Parotid Submaxillary Submucosal Sublinguals
Submucosal
Fat soluble vitamin is (2015) Pyridoxine Ascorbic Acid Tocopherol Thiamine
Tocopherol
One of the contituents of pancreatic juice which is poured into duodenum (2011) Trypsinogen Chymotrypsin Trypsin Enterokinase
Trypsinogen
Osteomalacia is due to deficiency of (2010) Vit. D/Calciferol Vit. K Vit A Vit E
Vit. D/Calciferol
In the stomach, gastric acid is secreted by the (2016) gastrin secreting cells parietal cells peptic cells acidic cells
parietal cells
Column I Column II a. Sphincter of aniinterus p. Opening of hepatopancreatic duct into duodenum b. Cardiac sphincter q. Between duodenum and posterior stomach c. Spincter of Oddi r. Guarding of terminal part of alimentary canal d. Ileocaecal sphincter s. Between oesophagus and anterior stomach e. Pyloric sphincter t. Between small intestine and bowel a—r, b—q, c—s, d—p, e—t a—q, b—t, c—p, d—s, e—r a—r, b—s, c—p, d—t, e—q a—s, b—r, c—p, d—q, e—t
a—r, b—s, c—p, d—t, e—q