S.2 Biology Test 4 Caltec S.2

ATTEMPT ONLY ONE QUESTION FROM EACH TOPIC CELLS AND TISSUE ORGANISATION 1. (a) What is cell specialization? (b) Using illustrations, give four examples of specialized cells in: (i) Plants, and state the function of each. (ii) Animals, and state the function of each. (c) Draw shapes to illustrate four major types of bacteria, and state one disease caused by each type. 2. (a)What is meant by specialization of cells? (b) Give three examples of specialized cells in: (i) Plants, (ii) Animals. (c)State one function of each of the cell mentioned in (b) above (d)(i)With aid of a well labeled diagram, describe the structure of a plant cell. (ii) State how the structures that make up a plant cell are related to their functions e) Give three structural differenc es between an animal cell and a plant cell (3 mks) DIVERSITY & INSECT LIFE CYCLES 1. (a) Compare (i) insects and arachnids, using structural features. (05 marks ) (ii) the lifecycles of Housefly and Grasshopper. (05 marks ) (b) How do mouthparts of insects in different orders suit them to their functions? (05 marks ) INSECT LIFE CYCLES 5.(a)State three features you would use to recognize insects. (03 marks) (b) Give four economic importance of insects. (04 marks) (c)Using your knowledge of the life cycle and habitat of the housefly, explain how this pest can be controlled . (9 marks) (d)Give the economic importance of a housefly. 6.(a)What is meant by the term metamorphosis; (b)Describe the life history of a; (i)Butterfly (ii)Grass hopper (c)Give reasons for the success of the class insecta. (15 marks) INSECT LIFE CYCLES 5. (a) Describe the lifecycle of either: (i) Housefly or Mosquito or Butterfly (ii) Cockroach or Grasshopper (b) Give the economic importance of insects. (c) What are the commonly used methods of breaking lifecycles …