WorksheetsDIGESTIVE SYSTEM & EXCRETORY SYSTEM
Total questions: 20
Worksheet time: 20mins
Name
Class
Date
1.
The teeth chew food and the stomach churns food into smaller particles. What is the name of this process?
a)
chemical digestion
b)
mechanical digestion
c)
absorption
d)
enzyme activity
2.
Where does digestion start?
a)
stomach
b)
mouth
c)
esophagus
3.
What is the main job of the digestive system?
a)
break down foods into nutrients that can be used by the body
b)
take in oxygen and exhale waste like carbon dioxide
c)
pump blood throughout the body
d)
makes the body hungry
4.
Muscular tube that connects the mouth to the stomach
a)
Epiglottis
b)
Peristalsis
c)
Stomach
d)
Esophagus
5.
stores bile produced by liver
a)
liver
b)
gallbladder
c)
pancreas
6.
Which organ releases digestive chemicals into the small intestine to help with digestion?
a)
gallbladder
b)
stomach
c)
liver
d)
pancreas
7.
The tube after the small intestine where the liquid is absorbed.
a)
large intestine
b)
small intestine
c)
rectum
d)
stomach
8.
A series of wave-like muscle contractions that moves food to different processing stations in the digestive tract.
a)
adduction
b)
primary wave
c)
peristalsis
d)
inversion
9.
Which organ does most of the chemical digestion of food and allows nutrients to be absorbed into the body?
a)
stomach
b)
esophagus
c)
small intestine
d)
liver
10.
Predict the next digestive system organ in the following sequence: mouth, pharynx, esophagus, stomach, ______
a)
liver
b)
kidneys
c)
small intestines
d)
large intestines
11.
Which secondary organ produces insulin and other digestive juices to further break down the food in the small intestines?
a)
liver
b)
gallbladder
c)
mouth
d)
pancreas
12.
Which organ of the excretory system stores urine until the body is ready to eliminate it?
a)
ureters
b)
urethra
c)
urinary bladder
d)
urea
13.
Under normal conditions, which of the following substances is found in urine?
a)
blood cells
b)
protein
c)
glucose
d)
urea
14.
Which excretory organ eliminates water and some chemical wastes in perspiration?
a)
lungs
b)
skin
c)
liver
d)
kidneys
15.
What function do the kidneys perform?
a)
eliminate carbon dioxide
b)
supply oxygen to body cells
c)
remove urea and excess water
d)
play a role in gas exchange
16.
Urine flows out of the kidneys through narrow tubes called
a)
Gallbladder
b)
Ureter
c)
Nephrons
d)
Urethra
17.
Tiny filtering structures where urine is produced in the kidneys are called
a)
ureters.
b)
alveoli.
c)
nephrons.
d)
bronchi.
18.
What toxic substance is excreted in the urine?
a)
Glucose
b)
Sodium ions
c)
Carbon dioxide
d)
Urea
19.
The organ that produces bile
a)
stomach
b)
pancreas
c)
gall bladder
d)
liver
20.
Bile is a chemical that helps break down
a)
fats
b)
proteins
c)
carbohydrates
d)
glucose
100 %
