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Standard XII
Biology
Gastrin
Question

Cholecystokinin is a secretion of:

A
Stomach, which stimulates the pancreas to release the pancreatic juice.
B
Liver, synthesized from cholesterol and controls secondary sexual characters.
C
Duodenum and makes the gallbladder contract and release bile.
D
Goblet cells of ileum and stimulates the secretion of succus entericus.
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Solution
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Cholecystokinin is a peptide hormone of the gastrointestinal system responsible for stimulating the digestion of fat and protein. It is synthesized by the cell in the epithelium of small intestine and secreted in the duodenum. It causes the release of digestive enzymes from the pancreas and bile from the gallbladder. Thus, the correct answer is option C.

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Which of the following hormones stimulates the secretion of pancreatic enzyme from the pancreas?


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Q2

Observe the given picture carefully and match A, B and C with their correct name and function:

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Q3

Observe the given picture carefully and match A, B and C with their correct name and function from the table given below:

OrganNameFunctionAPancreasStore bileBGall bladderPancreatic juiceCLiverSecretes bile


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Q4

Release of which enzyme stimulates pancreatic juice secretion?

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Q5

Digestive juice added into duodenum through sphincter of oddi

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