SCIENCE CH-11 CLASS 7

WHICH ONE IS THE CORRECT FUNCTION OF BLOOD?

• It carries oxygen from the lungs to different parts of the body.

• IT DOES NOT CARRIES WASTE PRODUCTS LIKE CARBON DIOXIDE.

• It does not perform the function of protecting the body from diseases.

____gives red color to the blood.

WHICH BLOOD CELL FIGHT AGAINST GERMS THAT ENTER IN OUR BODY?

• RED BLOOD CELLS

• WHITE BLOOD CELLS

• BOTH RED AND WHITE BLOOD CELLS

WHAT ARE THE 2 COMPONENTS OF BLOOD?

• PLATELETS & PLASMA

• HAEMOGLOBIN & RBCs

• HAEMOGLOBIN & WBCs

WHAT IS THE FUNCTION OF ARTERIES?

• They have valves.

• Blood flow through arteries at low pressure

• They have thick and elastic walls.