Excretory System

Question 1

What is the main function of the urinary system?

Answer 1

To remove unwanted substances from by the body.

Question 2

Which organs are involved in excretion besides the kidneys?

Answer 2

• Lungs
• Liver
• Skin

Question 3

What harmful substance is produced from excess amino acids in the liver?

Answer 3

Urea

Question 4

Where are the kidneys located in the human body?

Answer 4

Close to where your thumbs are when hands are on hips.

Question 5

How much blood do the kidneys filter each hour?

Answer 5

About 50 litres

Question 6

What is the role of kidneys in blood filtration?

Answer 6

Remove wastes (e.g. urea and other harmful substances), and regulate salts and water.

Question 7

What tube transports urine from the kidneys to the bladder?

Answer 7

Ureters

Question 8

What is the storage capacity of the bladder?

Answer 8

About 400 mL of urine

Question 9

How does the concentration of substances in the blood affect urine production?

Answer 9

More water intake leads to dilute urine; less water leads to concentrated urine.

Question 10

What is haemodialysis?

Answer 10

A treatment where blood is pumped out to a machine that removes waste products.

Question 11

What substance does the liver convert alcohol into during detoxification?

Answer 11

Acetaldehyde

Question 12

What is the final product of alcohol breakdown in the liver?

Answer 12

Carbon dioxide and water

Question 13

True or False: Drinking coffee speeds up the detoxification of alcohol.

Answer 13

False

Question 14

How does alcohol affect urine production in the kidneys?

Answer 14

Reduces the production of a hormone that keeps urine concentrated.

Question 15

What type of waste do birds excrete?

Answer 15

Uric acid

Question 16

Why do birds produce waste in the form of uric acid?

Answer 16

To conserve water

Question 17

What form of waste do fish and aquatic animals excrete?

Answer 17

Ammonia

Question 18

Fill in the blank: The kidneys help maintain _____ concentration in the blood.

Answer 18

Salt and water

Question 19

What is the primary function of the kidneys?

Answer 19

To filter waste products from the blood and produce urine.

Question 20

True or False: The bladder stores urine until it is expelled from the body.

Answer 20

True

Question 21

Fill in the blank: The _____ are the organs that produce urine.

Answer 21

kidneys

Question 22

What organ is responsible for transporting urine from the kidneys to the bladder?

Answer 22

Ureters

Question 23

Which organ is responsible for the expulsion of urine?

Answer 23

Urethra

Question 24

What is the role of the bladder in the excretory system?

Answer 24

To store urine until it is ready to be released.

Question 25

Fill in the blank: Urine is composed primarily of _____ and waste products.

Answer 25

water

Question 26

What is the process called when the kidneys filter blood?

Answer 26

Filtration

Question 27

What happens to excess water in the body?

Answer 27

It is excreted as urine.

Question 28

True or False: The kidneys play a role in blood pressure regulation.

Answer 28

True

Question 29

What is the term for the tiny structures in the kidneys that filter blood?

Answer 29

Nephrons

Question 30

True or False: The excretory system only removes liquid waste.

Answer 30

False

Question 31

What is the main purpose of the ureters?

Answer 31

To carry urine from the kidneys to the bladder.

Question 32

Multiple Choice: Which organ is NOT part of the excretory system? (a) Kidney, (b) Liver, (c) Bladder

Answer 32

b) Liver

Question 33

Fill in the blank: The _____ is the tube through which urine exits the body.

Answer 33

urethra

Question 34

Process

Answer 34

Kidney filters the blood that produces urine Urine is carried from the kidneys through long tubes called ureters. The urine is stored in a muscular pouch called the bladder. Finally, the urine is carried from the bladder out of the body through a tube called the urethra.

Question 35

Urea

Answer 35

Excess amino acids are converted into a harmful substance known as urea in the liver

Question 36

Label Excretory System

Answer 36

On Canva

Question 37

The Urea is taken from the liver to

Answer 37

The kidney's

Question 38

Why do we need the excretory system

Answer 38

To remove waste products and excess substances from the body

Question 39

Renal Vein

Answer 39

Takes cleaned blood back to the heart

Question 40

Excretion vs Excretory System

Answer 40

Excretion is the process of removing wastes and excess water from the body. Excretory system is the organs/system responsible for this

Question 41

Nephron

Answer 41

tiny structures in the kidneys that filter blood

Question 42

Why do we need to regulate salt and water levels

Answer 42

This keeps their concentration in the blood constant. f this did not occur, your cells would not work properly.