The diagram above illustrates a leaf before and after an experiment stated below. The leaf shown in diagram I was detached from a potted plant which had been exposed to sunlight for 4-5 hours while diagram ll shows the same leaf after the test for starch.
(7) (a) Name the type of leaf used for this experiment (b) Why is this type of leaf most suitable for the experiment? (c) State one precaution that should be taken in carrying out this experiment (d) What would be the colours of the parts labelled X and Y after the test for starch? (e) Suggest the aim of this experiment.
(a) Name the organism represented in the diagram above (b) Name the structure labelled x (c) Into what stage would the organism develop?
You are provided with specimens A, B and C (a) identify specimens A, B and C without reason.
(b) Make a labelled drawing 6-8 cm long of the longitudinal section of specimen A to illustrate its essential features
(c) (i) Suggest the possible means of pollination of specimen A (ii) Give three reasons for your answer
(d) (i) Name one agent of dispersal each for specimen B and C (ii) Give one reason each for your answer.
(a) identify specimen D without giving reason (b) (i) State two observable features of specimen D which indicate its mode of nutrition (b) (ii) What is the mode of nutrition cf specimen D? (c) Make a labelled drawing to show features of biological importance of the specimen (d) (i) Examine and identify without reasons specimens E and F
