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Digestive Enzymes: Trypsinogen and Trypsin

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Digestive Enzymes: Trypsinogen and Trypsin

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Questions and Answers

What is the main function of the pancreas?

It does not have any endocrine or exocrine functions.

It is only an exocrine gland that secretes digestive enzymes.

It is only an endocrine gland that secretes insulin and glucagon.

It is both an endocrine and exocrine gland. (correct)

What is the main function of insulin secreted by the pancreas?

Insulin is secreted by the exocrine portion of the pancreas.

Insulin lowers blood sugar/glucose levels. (correct)

Insulin has no effect on blood sugar/glucose levels.

Insulin increases blood sugar/glucose levels.

What is the main function of glucagon secreted by the pancreas?

Glucagon has no effect on blood sugar/glucose levels.

Glucagon lowers blood sugar/glucose levels.

Glucagon is secreted by the exocrine portion of the pancreas.

Glucagon raises blood sugar/glucose levels. (correct)

What are some of the digestive enzymes secreted by the exocrine portion of the pancreas?

Trypsinogen, chymotrypsinogen, and carboxypeptidase. Signup and view all the answers

Where are the secretions from the exocrine portion of the pancreas released?

Into the duodenum through the pancreatic duct and ampulla of Vater. Signup and view all the answers

What is the purpose of the bile canaliculus shown in the image?

To show how small the bile canaliculus is. Signup and view all the answers

What enzyme is responsible for breaking down proteins into amino acids in the small intestine?

Chymotrypsinogen Signup and view all the answers

Which enzyme produced by the pancreas is responsible for breaking down triglycerides into fatty acids and glycerol?

Pancreatic amylase Signup and view all the answers

What enzyme, when activated by enterokinase, breaks down proteins into amino acids?

Trypsin Signup and view all the answers

Which enzyme is NOT produced by the pancreas?

Sucrase Signup and view all the answers

What enzyme protects vitamin B12 from digestion in the small intestine?

Trypsin Signup and view all the answers

Which enzyme is involved in converting trypsinogen to its active form in the duodenum?

Enterokinase Signup and view all the answers

Which enzyme initiates carbohydrate breakdown in the oral cavity?

Salivary amylase Signup and view all the answers

What is the function of hydrochloric acid in the stomach?

Maintaining a very acidic pH level Signup and view all the answers

Which enzyme is transformed by hydrochloric acid into its active form in the stomach?

Pepsinogen Signup and view all the answers

What is the main function of intrinsic factor in the stomach?

Aids in the absorption of vitamin B12 Signup and view all the answers

Which cells secrete pepsinogen in the stomach?

Chief cells Signup and view all the answers

What substance is responsible for maintaining a very acidic pH level in the stomach?

Hydrochloric acid Signup and view all the answers