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Digestion in Animals

Total questions: 71

Worksheet time: 36mins

Name
Class
Date
1.
Peristalsis refers to
a)
one of the digestive organs
b)
the action of the stomach
c)
heart rate increasing
d)
smooth muscles moving food through the digestive system
2.
Fingerlike extensions of the small intestine that increase the surface area for absorption
a)
bronchi
b)
alvioli
c)
villi
d)
chyme
3.
Bile is made by which digestive organ?
a)
Gallbladder
b)
Stomach
c)
Rectum
d)
Liver
4.
Secretes enzymes
a)
Pancreas
b)
Small Intestine
c)
Urethra
d)
Ureters
5.
What is D?
a)
pancreas
b)
gall bladder
c)
liver
d)
large intestine
6.
What is H?
a)
pancreas
b)
small intestine
c)
liver
d)
large intestine
7.
Saliva contains this enzyme to start the digestive process.
a)
spit
b)
amylase
c)
hydrochloric acid
d)
sodium bicarbonate
8.
Tube that carries swallowed food to the stomach
a)
esophagus
b)
liver
c)
pancreas
d)
rectum
9.
Which of the following describes ONE function of the stomach?
a)
To temporarily store food
b)
To remove excess water from food
c)
To introduce carbohydrates to food
d)
Produces bile to make fats easier to digest
10.
Which organ in the digestive system absorbs the most water from food?
a)
esophagus
b)
small intestine
c)
large intestine
d)
stomach
11.

Hydrochloric acid is secreted in the _______________ .

a)

oesophagus

b)

stomach

c)

large intestine

d)

small intestine

12.

Which of the following is the correct order for the major parts of the gastrointestinal tract?

a)

oesophagus, stomach, large intestine, small intestine, mouth

b)

mouth, stomach, oesophagus, large intestine, small intestine

c)

mouth, small intestine, stomach, oesophagus, large intestine

d)

mouth, oesophagus, stomach, small intestine, large intestine

13.

Which of the following converts starch into maltose?

a)

maltase

b)

lactase

c)

sucrase

d)

salivary amylase

14.

Protein is broken down into ______________ before they are asborbed into the small intestines.

a)

fatty acids

b)

amino acids

c)

citric acid

d)

hydrochiloric

15.

____________ in the pancreatic and intestinal juice completes the digestion of fats.

a)

Amylase

b)

Renin

c)

Pepsin

d)

Lipase

16.

The villi provides a surface area for the absorption of nutrients into the bloodstream.

a)

True

b)

False

17.

What type of digestion involves the actual breaking apart of the food by our teeth, tongue, or muscles?

a)

chemical digestion

b)

diffusion

c)

mechanical digestion

d)

peristalsis

18.

Which of these stages of digestion includes a chemical change?

a)

peristalsis

b)

chewing

c)

saliva

d)

large intestine

19.

What is the main purpose of the small intestine?

a)

nutrients get absorbed into the blood/lacteal

b)

bile is produced

c)

water is removed

d)

nutrients are assimilated

20.

First section of the small intestine responsible for continued digestion.

a)

duodenum

b)

ileium

c)

pancreas

d)

rectum

21.

After this quiz I'm feeling...

a)

HECK YEAH!... Super confident!

b)

Mostly confident

c)

Meh - I'll do OK

d)

Oh dear...

e)

WHAT WAS THAT?!?! ...Did we talk about this?

22.
In the human body, hydrochloric acid is responsible for the low pH of the contents of the
a)
lungs
b)
kidney
c)
liver
d)
stomach
23.
Extensive damage to the large intestine would have the greatest effect on
a)
glucose metabolism
b)
protein synthesis
c)
enzyme secretion
d)
water reabsorption
24.
Which organ is the initial site of the extracellular chemical digestion of proteins?
a)
A
b)
B
c)
E
d)
D
25.
What occurs during the digestion of proteins?
a)
Specific enzymes break down proteins into amino acids.
b)
Specific hormones break down proteins into simple sugars.
c)
Specific hormones break down proteins into complex starches.
d)
Specific enzymes break down proteins into simple sugars.
26.
Which activity normally occurs in the esophagus of a human?
a)
hydrolysis of protein
b)
process of peristalsis
c)
secretion of amylase
d)
absorption of cellulose
27.
Which process is illustrated in the diagram?
a)
circulation
b)
absorption
c)
peristalsis
d)
ingestion
28.
Bile is a secretion which aids in the digestion of
a)
lipids
b)
proteins
c)
saccharides
d)
starches
29.
Feces is usually about 40 percent water and 60 percent solid matter. Reducing the water content to 20 percent would most likely result in
a)
ulcers
b)
appendicitis
c)
diarrhea
d)
constipation
30.
Which substance is a nutrient in the human diet?
a)
oxygen
b)
carbon dioxide
c)
water
d)
roughage
31.
In humans, villi that absorb monosaccharides and amino acids are found within the
a)
stomach
b)
small intestine
c)
pancreas
d)
esophagus
32.
In addition to water, the principal components of urine are
a)
amino acids and fatty acids
b)
urea and salts
c)
ammonia and bile
d)
hydrochloric acid and bases
33.
Which components of the human diet contain the greatest amounts of sugars and starches?
a)
meat and eggs
b)
fruits and vegetables
c)
minerals and milk
d)
water and vitamins
34.
Which type of digestion occurs in the mouth when an individual chews a piece of bread?
a)
mechanical digestion, only
b)
chemical digestion, only
c)
both mechanical and chemical digestion
d)
neither mechanical nor chemical digestion
35.
Which nutrient should provide the largest percentage of calories in a well-balanced diet?
a)
carbohydrates
b)
incomplete proteins
c)
saturated fats
d)
water
36.
A disorder of the digestive system that can cause severe dehydration is known as
a)
appendicitis
b)
gallstones
c)
constipation
d)
diarrhea
37.
The principal function of structure x is to
a)
produce salivary enzymes
b)
secrete sex hormones
c)
absorb water
d)
digest bile
38.
All of the following are organs of the digestive system except
a)
the stomach
b)
the mouth
c)
the intestines
d)
the heart
39.
If a person was unable to break down food particles into molecules that could be absorbed by the body, you would predict
a)
there is a malfunction with the digestive system
b)
there is a malfunction with the excretory system
c)
there is a malfunction with the reproductive system
d)
there is a malfunction with the circulatory system
40.
In gastric bypass surgery, the stomach is reduced to hold 1 ounce of food, instead of 3 pints. This surgery would drastically impact one's
a)
excretory system
b)
digestive system
c)
circulatory system
d)
respiratory system
41.
Which molecule can diffuse from the digestive tract into the human bloodstream without first being digested?
a)
protein
b)
starch
c)
fat
d)
glucose
42.
Before starch can enter a cell, it must be
a)
absorbed by simple sugars
b)
diffused into simple sugars
c)
digested to form simple sugars
d)
actively transported by simple sugars
43.
Into which parts of the human digestive system are digestive enzymes secreted?
a)
mouth, esophagus, stomach
b)
stomach, small intestine, large intestine
c)
mouth, stomach, small intestine
d)
esophagus, stomach, large intestine
44.
In humans, structures that release digestive secretions directly into the small intestine include both the
a)
salivary glands and the pancreas
b)
gall bladder and the lacteals
c)
villi and the salivary glands
d)
pancreas and the gall bladder
45.
In which human digestive organ do proteases function?
a)
mouth
b)
esophagus
c)
gall bladder
d)
stomach
46.
Enzymes and acidic juices in the stomach, which break proteins down into smaller molecules, is known as
a)
circulation
b)
chemical digestion
c)
excretion
d)
mechanical digestion
47.

What is the correct order for food moving through the alimentary canal?

a)

mouth, pharynx, esophagus, stomach, duodenum, jejunum, ileum, cecum, descending colon, transverse colon, ascending colon, sigmoid colon, rectum, anus

b)

mouth, pharynx, esophagus, stomach, duodenum, jejunum, ileum, cecum, ascending colon, transverse colon, descending colon, sigmoid colon, rectum, anus

c)

mouth, esophagus, stomach, duodenum, jejunum, ileum, cecum, ascending colon, transverse colon, descending colon, sigmoid colon, rectum, anus

d)

mouth, pharynx, esophagus, stomach, duodenum, ileum, jejunum, cecum, ascending colon, transverse colon, descending colon, sigmoid colon, rectum, anus

e)

mouth, esophagus, pharynx, stomach, duodenum, jejunum, ileum, cecum, ascending colon, transverse colon, descending colon, sigmoid colon, rectum, anus

48.

Carbohydrate and lipid digestion first occurs in the ____________________.

a)

stomach

b)

oral cavity (mouth)

c)

small intestine

d)

large intestine

e)

esophagus

49.

What are the four types of teeth? (choose four answers)

a)

incisors

b)

cuspids (canines)

c)

bicuspids (pre molars)

d)

molars

e)

baby teeth

50.

What are the 3 parts of the pharynx? (choose 3 answers)

a)

Nasopharynx

b)

Oropharynx

c)

Laryngopharynx

d)

esophagus

e)

nasal cavity

51.

What is the common passageway for solid food, liquids, and air?

a)

pharynx

b)

small intestines

c)

large intestines

d)

esophagus

e)

stomach

52.

What is the muscular tube that conveys solid food and liquids to the stomach from the mouth?

a)

pharynx

b)

small intestines

c)

large intestines

d)

esophagus

e)

stomach

53.

What is the the digestive organ that stores ingested food, mechanical breakdown ingested food, disrupts the chemical bonds in food with acids and enzymes, and produces a glycoprotein required for absorption of vitamin B12 in small intestine?

a)

pharynx

b)

small intestines

c)

large intestines

d)

esophagus

e)

stomach

54.

What is the the digestive organ that plays a key role in digestion and absorption of nutrients and is where 90% of nutrient absorption occurs?

a)

pharynx

b)

small intestines

c)

large intestines

d)

esophagus

e)

stomach

55.

What is the the digestive organ that functions in the reabsorption of water, compaction of intestinal contents into feces, absorption of important vitamins produced by bacteria, and storage of fecal material prior to defecation?

a)

pharynx

b)

small intestines

c)

large intestines

d)

esophagus

e)

stomach

56.

What is the slender, hollow appendage that is dominated by lymphoid nodules (a lymphoid organ) and is attached to cecum?

a)

Bile

b)

pancrease

c)

gall bladder

d)

liver

e)

appendix

57.

What is the accessory organ of the digestive system that produces and secretes enzymes?

a)

Bile

b)

pancrease

c)

gall bladder

d)

liver

e)

appendix

58.

What is the accessory organ of the digestive system that functions in metabolic regulation, hematological regulation, and bile production?

a)

Bile

b)

pancrease

c)

gall bladder

d)

liver

e)

appendix

59.

What is the accessory organ of the digestive system that is a pear-shaped, muscular sac that stores and concentrates bile prior to excretion into small intestine?

a)

Bile

b)

pancrease

c)

gall bladder

d)

liver

e)

appendix

60.

What is produced in liver, contains buffers and bile salts to break down lipids, and is stored in gallbladder?

a)

Bile

b)

pancrease

c)

gall bladder

d)

liver

e)

appendix

61.

What is the 1st part of the small intestine?

a)

ileum

b)

jejunum

c)

duodenum

d)

cecum

e)

rectum

62.

What is the middle part of the small intestine?

a)

ileum

b)

jejunum

c)

duodenum

d)

cecum

e)

rectum

63.

What is the last part of the small intestine?

a)

ileum

b)

jejunum

c)

duodenum

d)

cecum

e)

rectum

64.

The distinctive odor of feces is due to _______________.

a)

bacteria

b)

parasites

c)

bilirubin

d)

carbon dioxide

e)

mold

65.

What are the 5 pancreatic enzymes?

a)

pancreatic alpha amylase, pancreatic lipase, nucleases, proteases, peptidases

b)

pancreatic pepsin, pancreatic lipase, nucleases, proteases, peptidases

c)

pancreatic alpha amylase, lingual lipase, nucleases, proteases, peptidases

d)

salivary alpha amylase, pancreatic lipase, nucleases, proteases, peptidases

e)

pancreatic alpha amylase, pancreatic lipase, nucleases, pepsin, peptidases

66.

What does the pancreatic alpha amylase enzyme produced by the pancreas break down?

a)

nucleic acids

b)

carbohydrates (starches)

c)

lipids

d)

large protein complexes

e)

small peptides into amino acids

67.

What does the nuclease enzyme produced by the pancreas break down?

a)

nucleic acids

b)

carbohydrates (starches)

c)

lipids

d)

large protein complexes

e)

small peptides into amino acids

68.

What does the pancreatic lipase enzyme produced by the pancreas break down?

a)

nucleic acids

b)

carbohydrates (starches)

c)

lipids

d)

large protein complexes

e)

small peptides into amino acids

69.

What does the protease enzyme produced by the pancreas break down?

a)

nucleic acids

b)

carbohydrates (starches)

c)

lipids

d)

large protein complexes

e)

small peptides into amino acids

70.

What does the peptidase enzyme produced by the pancreas break down?

a)

nucleic acids

b)

carbohydrates (starches)

c)

lipids

d)

large protein complexes

e)

small peptides into amino acids

71.

What is the enzyme secreted into the stomach to break down proteins?

a)

amylase

b)

pepsin

c)

protease

d)

peptidase

e)

lipase

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