The layer of cells that secrete enamel of the tooth is from Biol

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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


D.

Odontoblast

The pulp cavity contains a mass of dense but soft connective tissue which is called pulp. A single layer of odontoblast cells lines the pulp cavity. These cells secrete enamel, which is a bluish-white shiny translucent and the hardest substance of the body.


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26.

Kupffer cells are present in

  • liver

  • small intestine

  • pancreas

  • thyroid gland


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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