Question

Q.1. What is osmoregulation?

Q. 2. Which organ synthesises urea?

Q. 3. Why ammonia is converted to uric acid crystals directly in uricotelic organisms ?

Q.4. What is excretion? How do unicellular organisms remove their wastes?

Q. 5. Why is nitrogen considered an essential element? How do plants acquire nitrogen ?

Q.6. List some important functions of kidney.​

Answer 1

Answer:

1. The maintenance of constant osmotic pressure in the fluid of an organism by the control of water and salt concentrations
2. The liver

Answer 2

$\huge\boxed{Answer}$

1. The maintenance of constant osmotic pressure in the fluids of an organism by the control of water and salt concentrations.
2. Liver
3. Animals, which live in dry conditions have to conserve water in their bodies to meet the demand of water in water scarcity. Therefore, they synthesize crystals of uric acid from ammonia.
4. The removal of waste material from the body is called excretion. The unicellular organism remove their wastes directly through the cell membrane by the process of diffusion. Diffusion occurs when particles spread.
5. Nitrogen is so vital because it is a major component of chlorophyll, the compound by which plants use sunlight energy to produce sugars from water and carbon dioxide (i.e., photosynthesis).

• remove waste products from the body.
• remove drugs from the body.
• balance the body's fluids.
• release hormones that regulate blood pressure.
• produce an active form of vitamin D that promotes strong, healthy bones.
• control the production of red blood cells.

$\huge\mathfrak\red{itz\:Jyotsana☺}$