1.A plant cell has two major components that is the cellwall and cell membrane.Differentiate these two parts in terms of structure and function. (25 marks)

2.Plants are non-motile organisms therefore cannot flee when conditions get tough.Describe how plants deal with both physical and biological dangers in the environment. (25 marks)

3.a) Define the term ”water potential” and name the various components of the water potential equation. (10 marks)
b)Differentiate between isotonic and hypertonic solution. (5 marks)
c)Explain how water is transported in plants. (10 marks)

4.a)Differentiate between photosynthesis and respiration reactions in plants identifying the reactants and products for each one of them. (10 marks)
b)Distinguish the difference stages of sporophytic development. (15 marks)

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