How The Excretory System Works

Question 1

What waste products are produced when the body uses food? (Name 4)

Answer 1

1-energy
2-carbon dioxide
3-water
4-heat

Question 2

When you exhale from your lungs, what 2 things are given off?

Answer 2

1-carbon dioxide

2-water

Question 3

What is the largest organ of the body?

Answer 3

The skin.

Question 4

What is given off through the skin?

Answer 4

Heat.

Question 5

What’s the function of the kidneys?

Answer 5

It’s to excrete or remove waste from the body.

Question 6

As the body breaks down extra proteins, it makes what wastes? (Name 2)

Answer 6

1-urea

2-salts

Question 7

How are urea and salts released from the body? (Name 2 ways)

Answer 7

1-Through the skin when you sweat

2-the main organs of excretion in the body

Question 8

Where are the kidneys located?

Answer 8

At the back of the body, above the hips.

Question 9

What liquid do kidneys make?

Answer 9

Urine.

Question 10

What is urine made up of?

Answer 10

Wastes and water.

Question 11

Each kidney contains million of tony tubes called ___________.

Answer 11

Nephrons.

Question 12

What are wrapped around the nephrons?

Answer 12

Capillaries.

Question 13

What do nephrons do?

Answer 13

They filter and cleanse the blood and balance the supply of water and salt in the body.

Question 14

What 4 things go into nephrons?

Answer 14

1-water
2-urea
3-salt
4-wastes

Question 15

How does urine form?

Answer 15

Urine forms from waste products.

Question 16

Where does urine form?

Answer 16

Inside the nephrons.

Question 17

The urine leaves through a tube called the __________.

Answer 17

Ureter.

Question 18

The urine collects where after leaving the kidneys?

Answer 18

In the bladder.

Question 19

When you pee, after its collected in the bladder, it goes through another tube called the __________.

Answer 19

Urethra.

Question 20

What carries the pee out of the body?

Answer 20

The urethra.