Question

Full Mark -5
1)The human body has an organ A which acts as a double pump. The B blood coming from the
lungs through a blood vessel C enters the upper left chamber of the double pump.When upper
left chamber contracts,then blood goes into lower left chamber. The contraction of lower left
chamber forces the blood to go into a blood vessels D.which supplies B blood to all the organs
of the body. The E blood coming out of the body organs is taken by a blood vessel F to the the
right chamber of pumping organ.Contraction of right chamber forces E blood into lower rightt
chamber.And finally the contraction of lower right chamber sends E blood into lungs through a
blood vessel.
a)Identify A'B,C,D,E,F (1/2 X6=3)
2)Lack of oxygen in muscles often leads to cramps in the legs of athletes. This is due to
conversion of pyruvate to:
a)ethanol. b)Carbon dioxide. c)acetic acid. d)lactic acid (1/2)
3)Arrange the following processes involved in the nutrition in animals in the correct order:
Absorption, Assimilation, Ingestion, Egestion, Digestion (1/2)
4)From the following terms,select one term which includes the other four:
Plasma, Platelets, Blood, RBC,WBC. (1/2)
5)In producers, water is transported through:
a)root hair. b)phloem. c) Stomata d)Xylem (1/2)​

Answer 1

Answer:

1) (A) Heart

(B) Oxygenated blood

(C) Pulmonary Vein

(D) Aorta

(E) Deoxygenated Blood

(F) Vena Cava

2) (d) Lactic acid

3) Ingestion, Digestion, Absorption, Assimilation, Ejestion

4) Blood

5) Xylem

Explanation:

I Hope this will help :)