Digestive System Question Preview (ID: 41679)

Digestive System. TEACHERS: click here for quick copy question ID numbers.

Digestion is primarily controlled by the:
a) parasympathetic division of the autonomic nervous system
b) enterogastric reflex
c) sympathetic division of the autonomic nervous system
d) medulla oblongata

The process by which food within the small intestine is mixed with digestive juices by backward and forward movement is called:
a) peristalsis
b) segmentation
c) defecation
d) absorption

The propulsive process that moves food from one organ to the next is called:
a) ingestion
b) peristalsis
c) segmentation
d) chemical digestion

Amylase is an enzyme that is only able to digest:
a) starch
b) protein
c) fat
d) vitamins

Bile is produced by the __________ but stored in the __________.
a) liver; pancreas
b) gallbladder; liver
c) liver; gallbladder
d) gallbladder; pancreas

Which one of the following is NOT a modification (which is designed to increase surface area for absorption) within the small intestine?
a) microvilli
b) villi
c) Peyer's patches
d) plicae circulares

Enzymes and bile are carried by the pancreatic duct and bile duct into the:
a) jejunum
b) ileum
c) large intestine
d) duodenum

Which of the following modifications increases surface area in the small intestine with fingerlike extensions of the mucosa?
a) rugae
b) villi
c) haustra
d) sphincters

Protein digestion begins in the:
a) mouth
b) esophagus
c) stomach
d) small intestine

The release of food from the stomach into the small intestine is regulated by the:
a) pyloric sphincter (valve)
b) ileocecal valve
c) internal anal sphincter
d) none of these

The first nutrient to be chemically digested is:
a) protein
b) starch
c) minerals
d) vitamins

Which digestive system organ is the target of gastrin:
a) esophagus
b) pancreas
c) stomach
d) small intestine

Pepsin is necessary for the stomach to break down of:
a) carbohydrates
b) proteins
c) nucleic acids
d) saturated fats

Which of the following influence the release of pancreatic juice and bile?
a) rennin and cholecystokinin
b) cholecystokinin and gastrin
c) secretin and gastrin
d) cholecystokinin and secretin

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