[" 2.13(a) Mention any two components of blood "],[" (b) Trace the movement of oxygenated blood in the body."],[" (c) Write the function of valves prescht in between the composition of antery "],[" and veins."]

(a) Mention any two components of blood. (b) Trace the movement of oxygenated blood in the body. (c ) Write the function of valves present in between atria and ventricles. (d ) Write one structural difference between the composition of artery and veins.

(a) Mention any two components of blood. (b) Trace the movement of oxygenated blood in the body. (c ) Write the function of valves present in between atria and ventricles. (d ) Write one structural difference between the composition of artery and veins.

Observe the blood cells and attempt the following question: . Write one function of any two type.

(a) Write the structural and functional differences between DNA and RNA. (b) Name two components of starch.

(a) Write the structural and functional differences between DNA and RNA. (b) Name two components of starch.

The human body has an organ A which acts as a double pump. The oxygenated blood coming from the lungs through a blood vessel B enters the upper left chamber C of the double pump. When chamber C contract, then blood goes into lower left chamb D. The contraction of chamber D forces the blood to go into a blood vessel E which supplies oxygenated blood to all the organs of the body (except the lungs). The deoxygenated blood coming out of the body organs is taken by a blood vessel F to the right upper chamber G of pumping organ. Contraction of chamber G force the deoxygenated blood into right lower chamber H. And finally the contraction of chamber H sends the deoxygenated blood into lungs through a blood vessel I. (a) What is organ A? (b) Name the blood vessel (i) B (ii) E (iii) F, and (iv) I (c) What are chambers (i) G and (ii) H ? (d) What are chambers (i) G and (ii) H ?

Draw the diagram of sectional view of human heart and on it name and label the following parts: (a) The chamber of the heart that pumps out deoxygenated blood. (b) The blood vessel that carries away oxygenated blood from the heart. (c ) The blood vessel that receives deoxygenated blood from the lower part of our body.