active transport 1. 2. 3. 4.. active transport exchange in the lungs
TRANSCRIPT
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Active Transport
1. 2.
3. 4.
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Active Transport
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Exchange in the Lungs
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Alveoli
Alveoli have thin walls, a large surface area and a rich blood supply
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Exchange in the Gut
As the concentration increases in the small intestines active transport will occur to ensure
no food is wasted.
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The gills have a large surface area, thin walls and a rich blood supply
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Simple diagram of inside a leaf
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Stomata open and closed
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The Circulatory System
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The Circulatory System
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The Circulatory System
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The Circulatory System
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Transport in Blood
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Transport in Blood
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Aerobic Respiration
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Anaerobic Respiration
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The Kidney
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The Kidney
• The blood is filtered and all the sugar is reabsorbed.
• Mineral ions and water needed are selectively reabsorbed.
• The mineral ions, water and urea are removed in the urine
• The sugar is reabsorbed by active transport
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Dialysis
-If a kidney is damaged or failing dialysis can be carried out.-The dialysis fluid contains the same concentration of glucose and mineral ions as the blood. -The dialysis fluid contains no urea.-It is a time consuming process-Must have a controlled diet
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Transplant
-A donor is required-The donor kidney maybe rejected-Must take immunosuppressants drugs for the rest of their life-Can have a normal diet
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Bacteria
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Antibiotics
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• The product made is used as a fuel
• A slurry is produced that is used as a fertiliser
The production of methane is an exothermic reaction
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The generators can be built above ground or underground.
• Initial costs are more to build
• Harder to repair• Cheaper long term as
it keeps heat in• Have to be trained to
use it
• Cheaper to build• Easier to repair• Costs more long term as
more heat is radiated• Have to be trained to
use it
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More Biogas • Sugar cane and maize is fermented anaerobically to produce ethanol.
• It is distilled.
• It is a carbon neutral fuel.