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प्रश्न
True or false:
Platelets help in clotting of blood.
विकल्प
True
False
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उत्तर
True
APPEARS IN
संबंधित प्रश्न
The diagrams given below are cross sections of blood vessels:
(i) Identify the blood vessels A, B and C.
(ii) Name the parts labelled 1 to 3.
(iii) Name the type of blood that flows through A.
(iv) Mention one structural difference between A and B.
(v) In which of the above vessels does exchange of gases actually take place?
Differentiate between members of the following pair with reference to phrase in bracket:
serum and vaccine (Composition)
Choose the correct answer:
The life-span of RBC is _________
Given alongside is a diagram of a smear of human blood. Study the same and answer the questions that follow:
 |
- Name the parts l, 2, 3 and 4 indicated by guidelines.
- Mention two structural differences between the parts labelled 'l' and '2'.
- What is the main function of the parts labelled 1, 2 and 3 respectively?
- What is the life span of the part labelled '1'?
- Name a soluble protein found in '4' which helps in the clotting of blood.
Complete the following sentence with appropriate word:
_________ helps in blood clotting.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Serum is an immunological preparation of blood (without cells and fibrinogen) containing antibodies and antitoxins against specific diseases
Multiple Choice Questions
The function of WBC is:
Write a note on coagulation of blood.
Intrinsic and extrinsic processes involve interaction of various substances called _______ by a step-wise or cascade mechanism.
