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