WorksheetsDigestive System
Total questions: 51
Worksheet time: 17mins
Food is broken down by enzymes into its simplest building blocks by
ingestion
propulsion
chemical digestion
absorption
Elimination of indigestible material as solid waste is
ingestion
defecation
absorption
propulsion
Taking food into your mouth is called
ingestion
propulsion
chemical digestion
mechanical digestion
Physical breakdown of food into smaller pieces is
mechanical digestion
chemical digestion
ingestion
defecation
Moving food from one organ to the next is
absorption
propulsion
mechanical digestion
ingstion
End products of digestion enter the blood stream by
chemical digestion
absorption
adsorption
mechanical digestion
Carbohydrate digestion begins in the
small intestine
mouth
stomach
liver
Lipid digestions begins in the
small intestine
stomach
mouth
large intestine
Protein digestion starts in the
stomach
duodenum
mouth
cecum
All digestion is completed in the
small intestine
cecum
jejunum
stomach
which of the following in NOT part of the alimentary canal?
esophagus
liver
mouth
small intestine
Which of the following events does NOT occur in the mouth?
mechanical digestion by teeth
food is turned into chyme
salivary amylase begins carbohydrate digestion
polysaccharides are broken down
Which of the following is NOT true of the stomach?
major site of fat digestion
3 layers of muscles churn and mix
two sphincters control entrance and exit of contents
very acidic environment
Which of the following is NOT matched correctly?
nutrients--substances that provide carbohydrates, proteins, and fats
digestion--the process of breaking down into nutrients
gastrointestinal tract--another term for the alimentary canal
mastication--chewing
Which of the following statements is NOT true?
enzymes are proteins that speed up chemical reactions such as breaking down food
the brainstem coordinates digestive activity
water is required for the hydrolysis reactions of chemical digestion
elimination of solid waste from the body is called deglutition
What structure initiates protein digestion?
(a)
What structure forms a bolus of partially digested food
(a)
What structure allows nutrients to enter the bloodstream?
(a)
What structure allows HCL to turn pepsinogen into pepsin?
(a)
What structure conducts food bolus by peristalsis?
(a)
What structure has the salivary amylase begin carbohydrate digestion?
(a)
What structure forms feces?
(a)
What structure involves the teeth and tongue to mechanically digest?
(a)
What structure secretes gastric juice?
(a)
What organ produces powerful enzymes to break down all 3 nutrients?
(a)
What organ produces bile?
(a)
What organ absorbs water and vitamins?
(a)
What organ produces mucus to protect the lining?
(a)
What organ propels solid waste toward the anus?
(a)
What organ's lining has adaptations to increase surface area for absorption?
(a)
What organ begins the process of chemical digestion?
(a)
What organ is the longest portion of the alimentary canal?
(a)
What organ stores bile and releases into the duodenum?
(a)
What organ is J-shaped with 3 muscle layers?
(a)
Which of the following statements about the duodenum is NOT correct?
it is the first to receive several centimeters of the small intestine
receives enzymes from the pancreas
absorption is completed here
produces intestinal juice to neutralize liquid chyme
Which of the following is NOT an example of mechanical digestion?
segmentation in the intestines
chewing or mastication
emulsification of fats by bile
conversion of pepsinogen to pepsin by HCL
Which of the following is NOT correctly matched?
cecum--a pouch below sigmoid colon that stores feces
ileocecal valve--keeps contents moving in one direction from small to large intestine
appendix--projection of the large intestine that has an immune system function
anus--opening at the end of the large intestine through which feces passes
Which of the following is NOT an adaptation of the small intestines to increase surface area?
villi
plicae circulares
rugae
microvilli
Which of the following is NOT ,match correctly?
pancreatic proteases: complete protein digestion
salivary amylase: begins digestion of fats
intestinal juice: composed mostly of water and an alkaline mucus
gastrin: regulates secretion of gastric juice
Which of the following is NOT a function of the digestive system?
ingestion
digestion
defecation
acidification
Which of the following is NOT secreted into the duodenum?
pepsin
bile
pancreatic enzymes
brush border enzymes
Which of the following is NOT a major process by which food is propelled through the GI tract?
peristalsis
segmentation
deglutition
mass movements
Which of the following in NOT matched correctly?
peptic ulcer: damage to the lining of the stomach most often caused by bacteria
gall stones: hard cholesterol deposits that form in the gall bladder
inflammatory bowel disease: chronic inflammation of the digestive tract
reflux: overproduction of digestive enzymes in the pancreas leads to infection
List the structures of the limentary canal in the order through which food passes.
(a)
Enzymes are (a) that living things use as catalysts to speed up reactions.
Hollow organs that run from your mouth to your anus is called?
(a)
The inside of your gastrointestinal tract is technically outside your body.
True
False
The stomach's extremely strong (a) and muscular contractions break down food.
a mushy ball created as you chew is called a ?
(a)
The urge to purge can also be influenced by (a) or stress.
The opening of the external anal sphincter is a (a) action.
