(AQA GCSE B3.2.1) The Blood
- Created by: Em
- Created on: 18-04-13 18:30
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- The Blood
- What's in the blood?
- Plasma
- Pale yellow fluid, everything is suspended in this
- Transports carbon dioxide from organs to lungs
- Also transports soluble products -amino acids, sugars, etc.
- Transports carbon dioxide from organs to lungs
- Pale yellow fluid, everything is suspended in this
- Red blood cells
- Special shape to maximise surface area, transport oxygen to cells in the body
- They have no nucleus, produced in bone marrow and not by mitosis
- Red blood cells carry HAEMOGLOBIN which react with oxygen to form OXYHAEMOG-LOBIN
- Oxyhaemoglobin transports oxygen to cells, goes through reverse reaction and splits into oxygen and haemoglobin again
- Haemoglobin stays in red blood cell, oxygen diffuses into cells for respiration
- Oxyhaemoglobin transports oxygen to cells, goes through reverse reaction and splits into oxygen and haemoglobin again
- Red blood cells carry HAEMOGLOBIN which react with oxygen to form OXYHAEMOG-LOBIN
- They have no nucleus, produced in bone marrow and not by mitosis
- Special shape to maximise surface area, transport oxygen to cells in the body
- White blood cells
- Immune system, defends body against microorganisms (more detail is unnecessary for this spec)
- Platelets
- Fragments of cells
- Help the blood to clot when there is a cut
- No nucleus
- Help the blood to clot when there is a cut
- Fragments of cells
- Urea
- Produced in liver from extra amino acids, broken down
- Transported in blood to kidneys, filtered to bladder into urine
- Produced in liver from extra amino acids, broken down
- Plasma
- What's in the blood?
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