1. ECONOMIC MICRO-ECONOMIC USES OF ORGANISMS ABBOTTS COLLEGE

2. ECONOMIC USES OF BACTERIA 2

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4. 4 Hemp fibre Flax

5. ECONOMIC USES OF BACTERIA 5  Biological pest control  E.g. control of moth caterpillars  Replace pesticides  Have no effects on humans and most other beneficial insects  Biological pest control  E.g. control of moth caterpillars  Replace pesticides  Have no effects on humans and most other beneficial insects

6. ECONOMIC USES OF BACTERIA 6  Decompose sewage waste to harmless sludge

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8. ECONOMIC USES OF BACTERIA 8  Food production  E.g. making cheese  Food production  E.g. making cheese

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10. ECONOMIC USES OF BACTERIA 10  Make probiotics  Dietary supplements which contain beneficial bacteria that will assist digestion  E.g. Lactobacillus and Bifido bacterium

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12. ECONOMIC USES OF ALGAE 12  Seaweed extracts include:  Phycocolloids found in algal cell walls have gelling properties Used as gelling agents in food products e.g. instant puddings and also in cosmetics, medical drugs and insecticides Thickening and stabilizing agents e.g. dairy products, artificial dairy toppings and canned pet food To make agar plates used in laboratories for culturing bacteria  Seaweed extracts include:  Phycocolloids found in algal cell walls have gelling properties Used as gelling agents in food products e.g. instant puddings and also in cosmetics, medical drugs and insecticides Thickening and stabilizing agents e.g. dairy products, artificial dairy toppings and canned pet food To make agar plates used in laboratories for culturing bacteria agar plate

13. ECONOMIC USES OF ALGAE 13  Seaweed extracts include:  Plant growth regulators which control growth and development of plants  Iodine from kelp can be included in mineral salt tablets  Natural pigments can be used as an alternative to chemical dyes and colouring agents  Nutrient extracts used in plant fertilizers  Seaweed extracts include:  Plant growth regulators which control growth and development of plants  Iodine from kelp can be included in mineral salt tablets  Natural pigments can be used as an alternative to chemical dyes and colouring agents  Nutrient extracts used in plant fertilizers

14. ECONOMIC USES OF ALGAE 14  Some seaweed is cultivated as a crash crop  E.g. Nori used in Sushi rolls  Excellent source of minerals and vitamins  Freshly harvested kelp is used to feed cultured abalone  Nutritional supplements can be made from cultivated algae  Some seaweed is cultivated as a crash crop  E.g. Nori used in Sushi rolls  Excellent source of minerals and vitamins  Freshly harvested kelp is used to feed cultured abalone  Nutritional supplements can be made from cultivated algae Nori abalone kelp

15. ECONOMIC USES OF ALGAE 15  Diatomaceous earth  A fine sediment from the walls of dead diatoms Used in toothpaste, sink cleaners and polishes with low abrasive properties  Crude oil and natural gas are the remnants of photosynthetic products of ancient algae  Oil producing algae are being grown as a potential alternative to fossil fuels  Diatomaceous earth  A fine sediment from the walls of dead diatoms Used in toothpaste, sink cleaners and polishes with low abrasive properties  Crude oil and natural gas are the remnants of photosynthetic products of ancient algae  Oil producing algae are being grown as a potential alternative to fossil fuels

16. ECONOMIC USES OF ALGAE 16  Seaweeds have the potential to contribute to sustainable employment opportunities and socio- economic up-liftment  South Africa has an advantage when it comes to the marketing of seaweed and its products because our coasts are pollution free and we have a high biodiversity of seaweeds  Seaweeds have the potential to contribute to sustainable employment opportunities and socio- economic up-liftment  South Africa has an advantage when it comes to the marketing of seaweed and its products because our coasts are pollution free and we have a high biodiversity of seaweeds

17. ECONOMIC USES OF FUNGI 17  As a direct food source e.g. mushrooms  For the production of biological products such as:  Alcohols  Plant growth regulators for plant and fruit development  Enzymes E.g. cellulases for industrial use and proteases – the active ingredient of detergents  As a direct food source e.g. mushrooms  For the production of biological products such as:  Alcohols  Plant growth regulators for plant and fruit development  Enzymes E.g. cellulases for industrial use and proteases – the active ingredient of detergents proteases

18. ECONOMIC USES OF FUNGI 18  To produce drugs  E.g. antibiotics to fight bacterial and fungal diseases – penicillin  To produce drugs  E.g. antibiotics to fight bacterial and fungal diseases – penicillin Penicillin is one of the most well-known and widely used antibiotics

19. ECONOMIC USES OF FUNGI 19  To produce drugs  Drugs to control haemorrhage after birth e.g. ergometrine  Drugs to control cholesterol levels and ward off coronary heart disease e.g. statins  To produce drugs  Drugs to control haemorrhage after birth e.g. ergometrine  Drugs to control cholesterol levels and ward off coronary heart disease e.g. statins

20. ECONOMIC USES OF FUNGI 20  For fermentation processes  In the making of yoghurt, maas, bread, beer and wine  For fermentation processes  In the making of yoghurt, maas, bread, beer and wine

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