2.4 Identify the parts of the tissues labelled X, Y and Z. (3)      

COLUMN I      COLUMN II  1.3.1  Sclerenchyma cells all have:  A.    Lignin  B.    Cellulose  1.3.2  Parenchyma cells all have:  A.    Large intercellular spaces between the cells  B.     Large vacuoles  

Which business is the only organized private business given explicit constitutional protection? 

2.3 Give a reason for your answer to question 2.1.2. (1)

3.3 Read the last paragraph again, carefully.  Mention THREE different types of therapies/treatments that researchers have developed to treat cancer. (3)

1.2.1 Provide labels for the parts of the cell numbered 1 and 2. (2)  

3.4 Explain the difference between the two cancers: leukaemia and melanomas. (2)

3.2 The extract above uses the term “apoptosis”.  Explain what you understand by this term. (2)

3.5 Identify the one word from the extract that implies that the behaviour in cancerous cells is unusual. (1)

COLUMN I      COLUMN II  1.3.1  Sclerenchyma cells all have:  A.    Lignin  B.    Cellulose  1.3.2  Parenchyma cells all have:  A.    Large intercellular spaces between the cells  B.     Large vacuoles