Question

(a) Draw a diagram of human excretory system and label the following parts on it :
(i) Ureter, (ii) Venn cave
(iii)Urinary bladder (iv) Left kidney
(b) list two vital functions of kidney.


CBSE Class X Science SA 2 (3 Marks)

Answer 1

Part (a) is in attachment.

(b) (i) To regulate right amount of water in body.

(ii) Helps in filtering out nitrogenous waste like urea from blood.

Answer 2

Answer:

Refer the diagram

Explanation:

Mammalian kidneys are bean shaped, reddish brown in colour. It's unit is Nephron. It is located in lateral side of vertebral column.

Functions of Kidney :

• Kidney is an excretory organ which helps in elemination of metabolic wastes from the body.

• It forms the urine which contains different excretory wastes.

• It helps in thermoregulation.

• It helps in maintenance of ions.