(Form 5) 1.9.2 Useful Microorganisms (Structured Questions)

Question 1:Figure 1 shows the result of an experiment to study the effect of different concentrations of an antibiotic on bacteria growth.(a) State one hypothesis for this experiment. [1 mark](b) State the variables in this experiment.(i) Manipulated variable [1 mark](ii) Responding variable [1 mark](c) Write down one observation for this experiment. [1 mark](d) What is … Read more

(Form 5) 1.9.1 Factors that Affect the Growth of Microorganisms (Structured Questions)

Question 1:Diagram 1 shows an experiment to study the effect of temperature on the growth of bacteria.After 2 days, the appearance of the nutrient broth in each test tube is observed. The result recorded is shown in Table below.(a) State the variables in this experiment.(i) Manipulated variable [1 mark](ii) Responding variable [1 mark](b) State the … Read more