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 Multiple Choice QuestionsMultiple Choice Questions

21.

Identify the vertebrate group of animals characterized by crop and gizzard in its digestive system

  • Amphibia

  • Reptilia

  • Osteichthyes

  • Aves


22.

Identify the correct set, which shows the name of the enzyme from where it is secreted and the substrate upon which it acts.

  • Ptyalin – Intestine – Maltose

  • Ptyalin – Pancreas – Lipid

  • Pepsin – Stomach wall – Caesin

  • Chymotrypsin – Salivary gland – Lactose


23.

Oxyntic cells secrete

  • HCl

  • Trypsin

  • NaOH

  • Pepsinogen


24.

Vitamin-B12 is absorbed primarily in the

  • Stomach

  • Duodenum

  • Jejunum

  • ileum


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25.

The layer of cells that secrete enamel of the tooth is

  • Dentoblast

  • Ameloblast

  • Osteoblast

  • Odontoblast


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26.

Kupffer cells are present in

  • liver

  • small intestine

  • pancreas

  • thyroid gland


A.

liver

Kupffer cells are the phagocytic cells present over the lining of sinusoids in liver. They destroy WBCs and RBCs and bacteria.

Small intestine consists of paneth cells and Argentaffin cells secreting digestive enzymes. They are present on tubular pits of intestinal glands known as crypts of Lieberkuhn.

Pancreas consists of groups of cells, islets of Langerhans which contain 4 types of cells- Alpha cells, Beta cells, Delta cells and F- cells.

Thyroid gland consists of spherical sacs called thyroid follicles. Its wall is made up of two types of cells- Principal cells and Parafollicular cells.


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27.

Secretion of pancreatic juice is stimulated by

  • gastrin

  • secretin

  • enterogasteron

  • enterokinase


28.

Digestion' word means

  • burning of food

  • oxidation of food

  • hydrolysis of food

  • oxidation of food


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29.

Maximum absorption of water occurs in

  • colon 

  • rectum

  • large intestine

  • small intestine


30.

Which of the following hormone stimulates the gastric secretion

  • Enterogastrone

  •  Gastrin

  • CCK-PZ

  • Villikinin


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