Excretory System
Excretory System: Overview
This Topic covers sub-topics such as Kidney, Uric acid, Dialysis, Urea, Sweat, Human Excretory System, Urethra, Urinary Bladder, Ureter, Kidney Failure, Disorders of Kidney, Skin as an Excretory Organ, Lungs as an Excretory Organ and, Effect of Evaporation
Important Questions on Excretory System
What is the use of urethra?

Artificial kidney is used for _____ of blood.

Machine used when the kidney is damaged.

How kidney can get damaged?

Dialysis is used when _____ is damaged.

Dialysis machines act as an artificial kidneys.

Name the organs that clean the blood.

What will happen if evaporation does not take place in plants?

In plants, the water is lost as vapor through stomata from the leaves.

Explain the effect of evaporation in plants.

These organs remove the wastes in the form of urine

The shape of the kidney is like a ball.

The process of removing waste material from the body is called _____. (digestion/ excretion)

Solve the following riddles. Choose your answer from the pictorial options.

Label the diagram given below to show the four main parts of the urinary system. Now answer the following.
1. Which of these parts remove extra salts and water from the blood?
2. Where is urine stored?
3. What is the tube through which urine is passed out of the body called?
4. What are the tubes that transfer urine from the kidneys to the bladder called?

Give a one-word answer.
The main waste in urine.

The process of removing waste material from the body is called _____ (digestion/excretion).

The urine leaves the body through the _____. (Urethra/ Ureter)

_____ carry the urine from the kidneys to the urinary bladder.

Formation of urine is a way for the body to keep the right amount of water.
