WorksheetsDigestion and Excretion
Total questions: 44
Worksheet time: 49mins
Name
Class
Date
1.
The physical breakdown of food.
a)
mechanical digestion
b)
elimination
c)
chemical digestion
d)
absorption
2.
An example of this is chewing.
a)
mechanical digestion
b)
elimination
c)
chemical digestion
d)
absorption
3.
Breaking down food by enzymes.
a)
mechanical digestion
b)
elimination
c)
chemical digestion
d)
absorption
4.
Breaking down of food into simple substances.
a)
digestion
b)
elimination
c)
mouth
d)
absorption
5.
Nutrients diffuse into the blood vessels for transport all around the body. Occurs in the small intestine.
a)
digestion
b)
elimination
c)
mouth
d)
absorption
6.
Carbohydrate digestion begins here.
a)
digestion
b)
elimination
c)
mouth
d)
absorption
7.
The mouth digests (breaks down) _________ with the enzyme amylase in the mouth (saliva).
a)
mechanically
b)
chemically
c)
elimination
d)
absorption
8.
The mouth digests (breaks down) _________ by chewing.
a)
mechanically
b)
chemically
c)
elimination
d)
absorption
9.
Absorption occurs here.
a)
mouth
b)
small intestine
c)
large intestine
d)
stomach
10.
This digests (breaks down) protein both MECHANICALLY (churning) and CHEMICALLY (using the enzyme pepsin).
a)
mouth
b)
small intestine
c)
large intestine
d)
stomach
11.
This is the enzyme that breaks down the sugar lactose in your small intestine.
a)
pepsin
b)
HCl
c)
Bicarbonate
d)
Lactase
12.
These send digestive juices to the small intestine.
a)
liver and pancreas
b)
small intestine
c)
mouth
d)
large intestine
13.
The teeth, tongue, and salivary glands aid in several stages of digestion. These include:
a)
Mechanical digestion, chemical digestion, and elimination.
b)
Ingestion, absorption, mechanical digestion, and chemical digestion.
c)
Ingestion, mechanical digestion, and chemical digestion.
d)
Chemical digestion, elimination, and absorption,
14.
Digestion takes place in a long tube-like canal called the digestive tract. Food travels through these organs in the following order:
a)
mouth, esophagus, stomach, small intestine, large intestine, anus
b)
mouth, esophagus, stomach, large intestine, small intestine, anus
c)
mouth, stomach, esophagus, small intestine, large intestine, anus
d)
mouth, small intestine, large intestine, stomach, esophagus, anus
15.
Which stage of digestion removes water?
a)
large intestine
b)
small intestine
c)
mouth
d)
stomach
16.
The highlighted organ is the
a)
anus
b)
small intestine
c)
large intestine
d)
liver
17.
Where would you expect to find hydrochloric acid?
a)
stomach
b)
small intestine
c)
liver
d)
large intestine
18.
This is an image of the
a)
stomach
b)
small intestine
c)
esophagus
d)
large intestine
19.
The highlighted organ is the
a)
liver
b)
large intestine
c)
small intestine
d)
stomach
20.
The organ highlighted is the
a)
stomach
b)
small intestine
c)
liver
d)
large intestine
21.
Where nutrients go after the small intestine has absorbed them.
a)
bloodstream
b)
stomach
c)
esophagus
d)
kidneys
22.
What is the function of the digestive system?
a)
to break down and absorb nutrients
b)
to support and protect our bodies
c)
to produce vitamin D
d)
to help us move
23.
The green chemical "bile" used to chemically digest fat (lipids) into fatty acids is stored in the
a)
liver
b)
gallbladder
c)
pancreas
d)
small intestine
24.
Which correctly identifies what each macro (large) molecule breaks down into...
a)
Proteins-->lipids
Fatty acids --> starches
Fatty acids --> starches
b)
carbohydrates --> simple sugars
lipids-->fatty acids
proteins--> amino acids
lipids-->fatty acids
proteins--> amino acids
c)
carbohydrates --> amino acids
lipids-->fatty acids
proteins--> simple sugars
lipids-->fatty acids
proteins--> simple sugars
d)
lipids-->fatty acids
proteins--> carbohydrates
proteins--> carbohydrates
25.
What is the purpose of an enzyme?
a)
give permission for the reaction
b)
raise activation energy
c)
speed up reactions
d)
control how many reactions occur
26.
fingerlike folds in the intestine to increase the surface area
a)
villi
b)
vector
c)
vanilla
d)
vortex
27.
remove urea from (filters) the blood and regulate concentrations of most of the substances in the body fluids
a)
liver
b)
kidney
c)
urinary bladder
d)
ureter
28.
tube from the bladder to the outside of the body
a)
urethra
b)
ureter
c)
large intestine
d)
I.V
29.
where urine is stored temporarily
a)
urinary bladder
b)
ureter
c)
urethra
d)
bile
30.
the removal of metabolic wastes such as carbon dioxide, water, salts, and urea
a)
digestion
b)
nutrition
c)
circulatory
d)
excretion
31.
fully digested wastes are stored temporarily before being egested from the anus
a)
rectum
b)
anus
c)
urinary bladder
d)
large intestine
32.
What do kidneys filter?
a)
ammonia
b)
nitrogenous wastes
c)
urine
d)
blood
33.
These organs are responsible for what?
a)
storing urine
b)
storing water
c)
filtering blood
d)
they don't have a particular job
34.
Which are the tubes that carry urine from the kidney to the bladder?
a)
Adrenal tubes
b)
Kidneys
c)
Ureters
d)
Urethras
35.
What is #4?
a)
Kidney
b)
Ureter
c)
Bladder
d)
Urethra
36.
What is #2?
a)
Kidney
b)
Ureters
c)
Bladder
d)
Urethra
37.
How are the lungs associated with the excretory system?
a)
They help the flow of blood
b)
Help you urinate faster
c)
They take in oxygen.
d)
They produce the waste product, carbon dioxide (CO2)
38.
emulsifies fat
a)
insulin
b)
proteins
c)
bile
d)
hydrochloric acid
39.
produces bile; secretes substances into the small intestine to continue digestion
a)
Liver
b)
Gall bladder
c)
Stomach
d)
rectum
40.
where wastes are egested from the body
a)
rectum
b)
anus
c)
oral cavity
d)
large intestine
41.
secrete wastes including water, salts, and small amounts of urea
a)
appendix
b)
gall bladder
c)
salivary glands
d)
sweat glands
42.
remove urea from (filters) the blood and regulate concentrations of most of the substances in the body fluids
a)
liver
b)
kidney
c)
urinary bladder
d)
ureter
43.
the removal of metabolic wastes such as carbon dioxide, water, salts, and urea
a)
digestion
b)
nutrition
c)
circulatory
d)
excretion
44.
95% of nutrients are absorbed in the
a)
esophagus
b)
stomach
c)
small intestine
d)
large intestine
100 %
