Biology Past Questions and Answers

(i) Make a labelled drawing of a typical plant cell to show its essential features.<br/>(ii) Give the functions of two labelled organelles<br/>(b) Describe briefly two levels of cell organization in living organisms giving an example of each type.<br/>(c) What role do the following processes play in the activities of a living cell (i) osmosis; (ii) diffusion. <br/>

(a) State four modes of nutrition in plants.<br/>(b) Outline the process involved in the light and dark reactions of photosynthesis.<br/>(c) Describe briefly the modifications and the mechanisms associated with the following feeding habits:<br/>(i) filter feeding in mosquito larva; (ii) parasitic feeding in tapeworm. <br/>

(a) (i) Define the term population. (ii) List two biotic and abiotic factors each that affect population growth.<br/>(b) What are the effects of food shortage on a population?<br/>(c) Describe two methods each for:<br/>(i) improving crop yield (ii) preserving and storing food. Explain the principle involved in each of the methods described. <br/>

Which of the following levels of organisation in living things is in the correct sequence, starting from the<br/>most complex to me simplest?

Which of the following levels of organisation in living things is in the correct sequence, starting from the<br/>most complex to me simplest?