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Given below is a diagram of a human blood smear. Study the diagram and answer the questions that follow:(i) Name the components numbered '1' to '4'.(ii) Mention two structural differences between the parts '1' and '2'.(iii) Name the soluble protein found in part '4'which forms insoluble threads during clotting of blood.(iv) What is the average lifespan of the component numbered '1' ?(v) Component numbered '1' do not have certain organelles but are very efficient in their function. |
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Answer» (i) 1. RBC 2. Neutrophil 3. Blood platelets 4. Blood plasma
(iii) Fibrinogen (iv) 120 days (v) RBCs do not have nucleas, endoplasmic reticulumand mitochondria. They are very efficient in carrying nutrients like glucose (which they cannot use, due to lack of mitochondria), can easily pass through the capillaries (lack of endoplasmic reticulum - endoskeleton) |
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