blood
- Created by: Ashleigh Ward
- Created on: 06-04-13 21:22
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- BLOOD!
- ERYTHROCYTE
- biconcave disc with large surface area.
- carries oxygen and carbon dioxide in its haemaglobin.
- break down of nucleus occurs in bone marrow.
- NEUTROPHIL
- most common white blood cell.
- granular cytoplasm and englufs microorganisms.
- LYMPHOCYTE
- two types (b and t)
- large nucleus and clear cytoplasm
- produce anti-bodies
- MONOCYTE
- biggest white blood cell
- clear cytoplasm and large bean shape nucleus.
- mature in the blood and move into tissue.
- PLATELETS
- fragments of giant megakaryocytes.
- used to help the blood clot.
- MACRPHAGE
- matured cellis in the tissue
- engulf microorganisms by phagocytosis.
- MICROSCOPES
- LIGHT MICROSCOPE
- cheap and easy
- Wave lenght = 400-700nm
- low resolution and magnification
- no vacume
- used for dead or living samples
- ELECTRON MICROSCOPE
- high magnification and resolution
- wave length = 0.004nm
- uses a vacume
- only dead specimin
- LIGHT MICROSCOPE
- ERYTHROCYTE
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