Digestion and absorption double fertilization
1.A baby boy aged two years is admitted to play school and passes through a dental check-up. The dentist observed that the boy had twenty teeth. Which teeth were absent?
a. Incisors
b. Premolars
c. Molars
d. Canines
2. Two friends are eating together on a dining table. One of them suddenly starts coughing while swallowing some food. This coughing would have been due to improper movement of
a. neck
b. tongue
c. diaphragm
d. Epiglottis
3. Which of the human teeth help in cutting?
a. Molar
b. Incisor
c. Canine
d. Premolar
4. Which of the following is the correct chronological order for flow of food from mouth to anus?
a. Oesophagus →Stomach→Small intestine→Large Intestine
b. Large
intestine→Oesophagus→Stomach →Small Intestine
c. Small intestine→Large intestine→ Oesophagus → Stomach
d. Stomach →Small intestine → Large intestine → Oesophagus
5. If the epiglottis does not function correctly, then what will happen to the human being?
a. One might congest.
b. Peristalsis will discontinue.
c. Acid reflux disease will damage the oesophagus.
d. Swallowing will be difficult or impossible.
6. The common passage in swallowing food and breathing:
a. Gullet
b. Glottis
c. Larynx
d. Pharynx
7. The dental formula in human beings is
a. 3 2 2 3/ 3 2 2 3
b. 2 1 2 3/ 2 1 2 3
c. 1 2 3 2/ 1 2 3 2
d. 2 2 3 3/ 2 2 3 3
8. Our teeth are:
a. Acrodont and homodont
b. Homodont and polyphyodont
c. Thecodont, diphyodont and
heterodont
d. Acrodont, homodont and
polyphyodont
9. Find the wrong statement out with respect to oesophagus.
a. Thin, long tube
b. Extends posteriorly
c. Passes through diaphragm
d. Opens into thorax
10. Which of the following is not correct about pharynx?
a. Short
b. Headed by oral cavity
c. Has three openings
d. Epiglottis takes care of opening of the oesophagus.
Digestion and Absorption Alimentary canal- Part 2
1. Aggregates of lymphoid tissue present in the distal portion of the small intestine are known as
a. villi
b. Peyer's patches
c. crypts of Lieberkuhn
d. choroid plexus
2. Muscularis layer of the wall of the alimentary canal is formed by:
a. Smooth muscle arranged into an inner longitudinal and an outer circular layer
b. Smooth muscle arranged into an inner circular and an outer
longitudinal layer
c. Skeletal muscle arranged into an inner longitudinal and an
outer circular layer
d. Skeletal muscle arranged into an inner circular and an outer longitudinal layer
3. Which of the following is a
sub-mucosal gland ?
a. Oxyntic glands of stomach
b. Crypts of Lieberkuhn of small intestine
c. Brunner's glands of the
duodenum
d. Goblet cells
4. What prevents the back flow of the fecal matter into the small intestine?
a. Ileo-caecal valve
b. Sphincter of Boyden
c. Meckel's diverticulum
d. Plicae semilunaris
5. The parietal cells or the oxyntic cells located in the stomach's gastric pits mainly secrete:-
a. HCI and Intrinsic factor
b. Pepsinogen and Gastric lipase
c. Pepsinogen and Pro-rennin
d. Gastrin and Mucus
6. The mucosal layer in the stomach form irregular folds known as:-
a. villi
b. lumen
c. Rugae
d. crypts of Lieberkuhn
7. What regulates the opening of oesophagus into the stomach?
a. A membranous valve
b. A muscular sphincter
c. A mesodermal septum
d. A cartilaginous flap
8. Which cells of 'Crypts of Lieberkuhn' secrete antibacterial lysozyme?
a. Argentaffin cells
b. Paneth oaks
c. Zymogen cells
d. Kupffer cells
9. Which of the following is correct ?
a. Paneth cells secrete pepsinogen
b. Parietal cells secrete
hydrochloric acid
c. Argentaffin cells secrete mucus
d. Chief cells secrete gastrin
10. Brunner's gland are characteristic feature of:-
a. Jejunum of small intestine
b. Ileum
c. Duodenum
d. fundic region of stomach
Digestion and Absorption Alimentary canal- Part 3
1.The number of salivary glands present in human beings is:
a. 5 pairs
b. 4 pairs
c. 3 pairs
d. 2 pairs
2. Smallest salivary gland is:
a. parotid
b. sublingual
c. infraorbital
d. Submandibular
3. Duct of Bartholin is associated with: a. parotid glands
b. maxillary glands
c. sublingual glands
d. infraorbital glands
4. Wharton's duct is associated with: a. Brunner's gland
b. Parotid salivary gland
c. Sublingual salivary gland
d. Submaxillary salivary gland
5. The duct from the parotid gland that opens into the vestibule is known as:
a. Wolffian duct
b. Stenson's duct
c. Mullerian duct
d. Wharton's duct
6. Where do certain symbiotic microorganisms normally occur in the human body?
a. Duodenum
b. Tongue surface and oral lining
c. Rectum and vermiform
appendix
d. Caecum
7. With reference to a normal human being, which one of the following statements is not correct?
a. Human saliva is slightly alkaline
b. An adult human may secrete 1 to 1.5 litres of saliva per day
c. Saliva is secreted by six pairs of salivary glands inhuman beings
d. The salivary enzyme (ptyalin) breaks down cooked starch into maltose
8. Crypts of Lieberkuhn are involved
a. secretion of succus entericus
b. secretion of rennin
c. secretion of ptyalin
d. digestion of food
9. In which layer of the wall of the alimentary canal, secretary glands are present?
a. Serosa
b. Mucosa
c. Muscularis
d. Submucosa
10. Muscular contractions of the alimentary canal are .
a. Circulation
b. Deglutition
c. Churning
d. Peristalsis
Digestion and Absorption Accessory glands of digestive system
1. Zymogen cells of gastric glands produce
a. Chymotrypsin
b. Pepsin
c. Pepsinogen
d. Trypsin
2. Release of pancreatic juice is stimulated by
a. Enterokinase
b. Trypsinogen
c. Cholecystokinin
d. Secretin
3. Gastric juice of adult humans is without
a. HCl
b. Pepsinogen
c. Rennin
d. All the above
4. The intestinal juice, succus entericus is secreted by
a. Villi
b. Crypts of Lieberkuhn
c. Brunner's Glands
d. Crypts of Lieberkuhn and
Brunner's glands
5. HCl is secreted by
a. Zymogen cells
b. Kupffer's cells
c. Oxyntic/parietal cells
d. Mucous cells
6. Oxyntic cells are located in
a. Islets of Langerhans and secrete insulin
b. Kidneys and secrete renin c. Gastric epithelium and secrete HCl
d. Gastric epithelium and secrete pepsin
7. Which gastric secretion is correctly matched with its source
a. Pepsin — Chief cells
b. Chymotrypsin — Parietal cells c. HCl — Goblet cells
d. Mucus — Oxyntic cells
8. Gall bladder is meant for
a. Storing bile
b. Concentrating bile
c. Storing and concentrating bile d. Storing bile and producing intrinsic factor for secretin
9. Phagocytic cells lining blood sinuses of liver are known as
a. Enterochromaffin cells
b. Kupffer's cells
c. Oxyntic cells
d. Zymogen cells
10. Liver performs the function of a. Glycogenesis
b. Glycogenolysis
c. Deamination
d. All the above
Digestion and Absorption Digestive Glands
1.Which of the following statements is incorrect?
a. Mucosal epithelium has goblet cells which secrete mucus for lubrication.
b. Mucosa forms gastric glands in the stomach and crypts in
between the bases of the villi in the intestine.
c. Cells lining the villi have brush border or microvilli.
d. All the four basic layers in the wall of the gut never show
modifications in different parts of the alimentary canal.
2. Which of the following is not a salivary gland?
a. Sublingual
b. Submaxillary
c. Lacrimal
d. Parotid
3. Stenson's duct is associated with a. parotid gland
b. cardiac gland
c. pancreatic gland
d. thyroid gland.
4. Which part of the mammalian alimentary canal does not secrete any enzyme?
a. Mouth
b. Oesophagus
c. Stomach and secrete dilute HCl d. Duodenum
5. A bolus is
a. a mass of crushed food
moistened with saliva
b. the semisolid material resulting from partial digestion in the
stomach
c. the milky emulsified fat
absorbed from small intestine d. indigestible materials that help in movement and absorption of food.
6. ________ is a characteristic feature of epithelial cells of the intestine a. Glottis
b. Pilus
c. Bolus
d. Microvilli
7. A dental condition that is
characterized by hyper mineralization of teeth enamel due to excessive intake of _____________. The teeth often appear mottled.
a. Sodium
b. Calcium
c. Fluoride
d. Mercury
8. Spicy food, coupled with anxiety, may lead to ________
a. Indigestion
b. Hypotension
c. Seizures
d. None of the above
9. One of the reasons why some people cough after eating a meal may be due to the improper movement of ______ a. Larynx
b. Diaphragm
c. Neck
d. Epiglottis
Digestion and Absorption Mechanism Of Digestion
1.In humans one of the constituents of the pancreatic juice which is poured into the duodenum is
a. trypsinogen
b. chymotrypsin
c. trypsin
d. Enterokinase.
2. The pH of succus entericus is
a. 6.6
b. 5.6
c. 2
d. 7.8
3. Brunner's gland is present in
a. liver
b. duodenum
c. oesophagus
d. Stomach.
4. Select the incorrect statement. a. Lipases and nucleases are not present in pancreatic juice
b. Goblet cells secrete mucus.
c. Brunner's glands are submucosal glands.
d. Carboxypeptidase catalyses
conversion of proteins, peptones and proteoses to dipeptides.
5. The backflow of faecal matter from the large intestine into the small intestine is prevented by the presence of
a. epiglottis
b. sphincter of Oddi closes the
hepato-pancreatic duct
c. ileo-caecal valve
d. gastro-oesophageal sphincter. 6. Which of the following matches is correct?
a. Renin-protein
b. Trypsin-Starch
c. Invertase-Sucrose
d. Amylase-Lactose
7. Which of the following is not the function of the large intestine?
a. Absorption of water
b. Nutrient absorption
c. Secretion of mucus to lubricate faeces
d. Temporary storage of faeces in rectum
8. During absorption of carbohydrates in the blood the most rapidly transported monosaccharide is
a. glucose
b. galactose
c. fructose
d. Sucrose.
9. Which of the following statements is false?
a. The breakdown of most
biomacromolecules occurs in
duodenum.
b. Simple substances (digested foods) are absorbed in the jejunum and ileum.
c. Significant digestive activity occurs in the large intestine.
d. Undigested and unabsorbed
substances are passed on to the
large intestine.
10. Stool of a person is whitish grey coloured due to malfunction of which of the following organs?
a. Pancreas
b. Spleen
c. Kidney
d. Liver
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