Name two examples of useful microorganisms in each of the following fields:
(a) medicine
(b) agriculture
(c) industry
Answer:
(a) Recombinant DNA of E. coli, Penicillium chrysogenum
(b) Bifidobacteria sp., Nitrosomonas sp., Nitrobacter sp.
(c) Yeast, Lactobacillus bulgaricus, Bifidobacteria sp.
State two examples of foods that use microorganisms and name the microorganisms.
Answer:
(a) What is eco enzyme?
(b) Give two uses of eco enzyme.
Answer:
(a)
Eco enzyme is a natural product from agricultural waste such as fruit or vegetable waste processed through fermentation.
(b)
• Treats wastewater and sewage
• Minimises agricultural waste such as fruit and vegetable waste
• As a cleaning solution
(any two)
Figure 1
(a) Figure 1 shows a type of bacterium. Name this type of bacterium.
(b) Give three uses of the serum derived from the bacterium mentioned in question 4(a).
Answer:
(a)
Lactobacillus sp.
(b)
• Eliminates foul odour
• Facilitates animal digestion
• Produces enzyme
• Treats sewage
• Makes compost
• Advances the fishing industry
(any three)