Download Excretory System Questions

Excretory System Questions
Question 1 : What is the main function of the Excretory System?
A: to excrete saliva
B: get rid of waste products from your cells
C: break down food for digestion
D: circulate oxygen
Question 2 : What is an example of a waste product?
A: extra water and salts
B: unhealthy foods
C: fruits and vegetables
D: pizza and lasagna
Question 3 : Which of the following is NOT an organ of the excretory system?
A: liver
B: kidneys
C: skin
D: heart
Question 4 : The ____________ filters wastes from the blood.
A: heart
B: kidneys
C: liver
D: stomach
Question 5 : Where does urine flow?
A: from the stomach to the liver
B: from the kidney to the bladder
C: from the bladder to the kidney
Question 6 : Where does the urine get stored before it is pushed out of the body?
A: bladder
B: liver
C: stomach
D: kidney
Question 7 : When does the skin take part in excretion?
A: all the time
B: never
C: when a person sweats
D: when a person sleeps
Question 8 : What makes up sweat?
A: water
B: water and minerals the body does not need
C: water and minerals the body needs
Question 9 : How many kidneys does the human body have?
A: 1
B: 2
C: 3
D: 4
Question 10 : How does sweating help the human body?
A: it cools the body
B: it warms the body
C: it makes the body feel comfortable