In Text Questions of Page 112 | Describe the Structure and Functi Chapter 6 Science Class 10 NCERT Solutions in Text

In text questions of page 112 ( Life Processes class 10 )

Question 1. Describe the structure and functioning of nephrons.

Ans.Nephrons are the filtration units of kidney. Each kidney has a large no. of nephrons. The process starts with filteration of urine.

Cup-shaped structure associated with capillaries is called Bowmans capsule. This collects filtered urine. As this urine flows through the tubular part of nephron, reabsorption of glucose, amino acids, salts and water take place. The amount of water and other substances reabsorbed depends upon how in excess they are present in the body.The urine formed enters into a long tube called ureter through the collecting ducts of kidney. Then urine is collected in urinary bladder.

Question 2. What are the methods used by plants to get rid of excretory products?

Ans. Plants get rid of:
1. of water by transpiration.
2. waste products may be stored in vacuoles or may be stored in leaves which fall off.
3. resine and gums are stored in xylem.
4. some waste substance may be excreted in the soil.
5. as by products move out of the plants by diffusion through stomata.

Question 3. How is the amount of urine produced regulated?

Ans. The amount of urine produced depends on the amount of excess water and dissolved wastes present in the body.