2.1 The blue button below is linked to a diagram showing a geological timescale.  Study it carefully  and then answer the questions that follow. TO VIEW THE DIAGRAM, RIGHT CLICK ON THE BUTTON BELOW AND OPEN IT IN A NEW TAB.    

1.2.2 Name ONE important structure found in parts 1,2 and 3 respectively. (3)

4.2 You work for a Health magazine that targets teenagers, and your job is to answer questions from the readers.  One of your readers wrote in to describe a new diet that he is following in order to lose weight.  The diet states that ALL lipids must be removed from the diet. Formulate your response that will be published in the next edition of the magazine.  Describe the variety of roles that fats play in the body and offer two suggestions on a healthier way to lose weight. (10)

1.2.3. a)  Identify this as being either a plant cell or an animal cell. (1)       b)  The visible presence of which organelle helped you to identify the cell? (1)    

1.2.1 Provide the labels for the parts numbered: a)  1 b)  2 c)  3 (3)

SECTION A   QUESTION 1  

3.3.1 What is the main nutrient in egg white? (1)       3.3.2 Give the result that would appear for test tube B. (1)       3.3.3 Explain your reason for answer 3.3.2. (3)       3.3.4 Do you expect test tube A to show a change in colour?  Explain your answer in detail. (4)       3.3.5 What is the purpose of test tube C? (1)            

1.2.3 The blue button below is linked to a micrograph of a cell.  Study it carefully and then answer the question that follows: TO VIEW THE DIAGRAM, RIGHT CLICK ON THE BUTTON BELOW AND OPEN IT IN A NEW TAB.    

Dit is ‘n ekstra “opstelvraag” -teksboks. Gebruik dit slegs as ‘n vorige teksboks ontbreek of foutief is. Indien jy hier antwoorde indien, moet jy seker maak dit is duidelik en volgens die betrokke vraagnommer genommer.

1.4.1 Gebruik die digotome sleutel in die diagram en identifiseer die genommerde spesie: a)     1 b)     4 c)     5 d)     7 (2X4 = 8)    a) b) c) d)   1.4.2 Identifiseer die koninkryk waaraan hierdie organismes behoort. (2)