Microorganisms

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

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

Question 3:Diagram 3 shows an experiment to study the effect of light on the growth of microorganisms.Diagram 3(a) State one observation for the bread which has been kept in the dark for two days. [1 mark](b) Based on Diagram 3, what is microorganism W? [1 mark]Mark ( √ ) for your answer.(c) State one hypothesis … Read more