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.(b) State the variables in this experiment.(i) Constant variable(ii) Responding variable(c) Write down one observation for this experiment.(d) What is meant by antibiotic based on this experiment (operational … Read more

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   (ii) Responding variable(b) State the … Read more