5.3 If the image above is not visible , please right click the blue button below and open in a new tab to view the image. (1)  

QUESTION 2 State whether the following statements are true or false: 2.1  A switch is used to open and close a circuit. (1)

1.4 An object with an excess of electrons is: (1)

1.1 A neutral atom contains (1)

1.5 Conduct the electric current over long or short distances. (1)

1.1  Verduidelik wat bedoel word met ‘ontkiemende’ sade. (2) 

  QUESTION 3 Study the diagram below and answer the questions that follow: TO VIEW THE DIAGRAM, RIGHT CLICK ON THE BUTTON BELOW AND OPEN IT IN A NEW TAB:      

1.3  Explain why the test tubes have to be left in a warm place? Consider enzyme activity as you answer the question. (4) 

3.4 Summarise what happens during Kreb’s cycle. (4)

1.5   Predict the results expected in both the experiment and the control, respectively. (2)