Formative Practice 1.2 – Form 5 Science (KSSM) Chapter 1

Question 1:
Name two examples of useful microorganisms in each of the following fields:
(a) medicine
(b) agriculture
(c) industry

(a) Recombinant DNA of E. coli, Penicillium chrysogenum

(b) Bifidobacteria sp., Nitrosomonas sp., Nitrobacter sp.

(c) Yeast, Lactobacillus bulgaricus, Bifidobacteria sp.

Question 2:
State two examples of foods that use microorganisms and name the microorganisms.


Question 3:
(a) What is eco enzyme?
(b) Give two uses of eco enzyme.

Eco enzyme is a natural product from agricultural waste such as fruit or vegetable waste processed through fermentation.

• Treats wastewater and sewage
• Minimises agricultural waste such as fruit and vegetable waste
• As a cleaning solution
(any two)

Question 4:

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).

Lactobacillus sp.

• Eliminates foul odour
• Facilitates animal digestion
• Produces enzyme
• Treats sewage
• Makes compost
• Advances the fishing industry
(any three)

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