NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 1221 - 1227 of 1998
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Question 1224
Question Match List-Ⅰ List-Ⅱ▾
Match the following
List-Ⅰ (Group I) | List-Ⅱ (Group II) |
---|---|
(A) Macrophages | (i) Production of antibodies |
(B) Spleen | (ii) Produced in bone marrow but maturation and immunological competency gained in thymus |
(C) B-lymphocytes | (iii) Graveyard of RBCs |
(D) T-lymphocytes | (iv) Phagocytosis |
Choices
Choice (4) | Response | |
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a. |
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b. |
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c. |
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d. |
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Question 1225
Question 1227
Question MCQ▾
Blood is connective tissue. It has Plasma and formed elements in it՚s composition. RBCs are oxygen carrying machinery with haemoglobin protein in its cytoplasm. Which of the following is part of haemoglobin?
Choices
Choice (4) | Response | |
---|---|---|
a. | α- chain and α ′ -chain | |
b. | β- chain and β ′ - chain | |
c. | Both a. and b. are correct | |
d. | None of the above |