Advertisements
Advertisements
प्रश्न
Why is it necessary to excrete waste products?
Advertisements
उत्तर
- Certain waste and toxic products are formed during the functioning of body cells. Waste products like urea are toxic.
- When these toxic materials are not removed from the body, they get mixed with blood and can damage the cells of the body.
- It is necessary to remove such poisonous waste materials from our bodies.
- Some harmful substances are produced in the body as part of biological processes. It is very important to remove them from the body, otherwise poison will be produced in the body which can lead to death.
APPEARS IN
संबंधित प्रश्न
The nephrons discharge their urine at ______.
State whether the following statement is true or false:
Some organisms store wastes in body parts.
Why is excretion necessary in living beings?
Name the following:
The part of kidney tubules where the term urine is first used for the fluid in it.
One of the following sets of body parts or substances or processed, pick out the one item which overall includes the remaining foir.
Skin, liver, lungs, kidneys, excretion.
The following diagram represents a mammalian kidney tubule (nephron) and its blood supply.
Parts indicated by the guidelines 1 to 8 are as follows:
1. Afferent arteriole from renal artery
2. efferent arteriole
3. Bowman’s capsule
4. Glomerulus;
5. Proximal convoluted tubule with blood capillaries;
6. Distal convoluted tubule with blood capillaries;
7. collecting tubule;
8. U-shaped loop of Henle
Study the diagram and answer the question that follow:
Where does ultrafiltration take place?
Name the Following
The process by which kidneys regulate the water content of the body.
Choose the correct option.
In human beings, uric acid is formed due to metabolism of ______.
In order to maintain homeostasis or constant internal environment . ______' is essential.
Why is the rate of breathing in aquatic organisms much faster than in terrestrial organisms?
