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प्रश्न
Direction: In each of the following questions a statement of assertion (A) is given and a corresponding statement of Reason (R) is given just below it. Mark the correct statement as.
Assertion: RBC plays an important role in the transport of respiratory gases.
Reason: RBC does not have cell organelles and a nucleus.
विकल्प
If both A and R are true and R is the correct explanation of A.
If both A and R are true but R is not the correct explanation of A.
A is true but R is false.
Both A and R are false.
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उत्तर
If both A and R are true and R is the correct explanation of A.
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संबंधित प्रश्न
What are the components of blood?
The liquid connective tissue A circulates in our body continuously without stopping. This tissue contains a pigment B which imparts it a colour C. The tissue A consists of four components D, E, F and G. The component D fights infection and protects us from diseases. The component E helps in the clotting of tissue A if a person gets a cut. The component F is a liquid which consists mainly of water with many substances dissolved in it and component G carries oxygen from the lungs to all the parts of the body.
(a) What is (i) tissue A (ii) pigment B, and (iii) colour C?
(b) Name (i) D (ii) E (iii) F, and (iv) G.
(c) Name one substance (other than oxygen) which is transported by tissue A in the human body.
(d) Which two components of tissue A are the cells without nucleus?
(e) Name any two organisms ( animals) which do not have liquid like A in their body.
Name the following:
Components of blood
State the Function: Vitamin K
A patient with blood group O was injured in an accident and has blood loss. Which group of blood should be used by the doctor for transfusion?
All veins carry deoxygenated blood.
Why are leucocytes classified as granulocytes and agranulocytes? Name each cell and mention its functions.
Veins have valves that allow blood to flow only in one direction. Arteries do not have valves. Yet the blood flows in one direction only. Can you explain why?
When a red blood corpuscle containing both A and B antigens are mixed with your blood serum, they agglutinate. Hence your blood group is ______.
Define the following term:
Blood
