AS Human Biology - Types of Blood Cell
Mind map for OCR AS Human Biology, unit 1. Types of blood cells, and what they do.
- Created by: Freya
- Created on: 10-03-13 16:02
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- Types of Blood Cell
- Erythrocytes (red blood cells)
- Biconcave discs - large surface area/ volume ratio
- Filled with heamoglobin - combines with oxygen
- No nucleus - more space for haemoglobin
- Flexible - can flatten against capillary walls
- Creates a shorter diffusion pathway
- Neutrophils
- Granular cytoplasm
- Engulf microorganisms by Phagocytosis
- Lobed nucleus
- Lymphocytes
- Large, darkly stained nucleus
- B lymphocytes - produce antibodies
- T lymphocytes - cell destruction
- Clear cytoplasm
- Monocytes
- Large, bean shaped nucleus
- become macrophagesin the tissues
- Engulf microorganisms
- Erythrocytes (red blood cells)
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