Dissect specimen X in the usual way to display the digestive system. The candidates were supposed to deflect the gut to their right hand side and respond to the following questions: (a) Draw a large, neat, well-labelled diagram of your dissection. (b) Give the role of each part of the digestive system labeled in (a). (c) Classify specimen X to the order level. (d) Briefly describe four adaptations of specimen X to its mode of life. (e) State two advantages of specimen X in the ecosystem.

1. Draw a large, neat, well-labelled diagram of your dissection. (5 mk)
2. Give the role of each part of the digestive system labeled in (a). (5 mk)
3. Classify specimen X to the order level. (2 mk)
4. Briefly describe four adaptations of specimen X to its mode of life. (4 mk)
5. State two advantages of specimen X in the ecosystem. (4 mk)

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Extract food solution from raw food stuff labelled as specimen B . Then label the prepared food solution as solution B and answer the following questions: (a) State the procedures to be followed in preparing solution B from specimen B. (b) Design an experiment to find out the classes of carbohydrates contained in solution B. Tabulate your results as shown in the following table. Food Test Procedure Observation Inference (c) State the role of food substance(s) identified in solution B in your body. (d) What is the role of HCl in testing for carbohydrates?

1. State the procedures to be followed in preparing solution B from specimen B. (3 mk)
2. Design an experiment to find out the classes of carbohydrates contained in solution B. Tabulate your results as shown in the following table. Food Test Procedure Observation Inference (7 mk)
3. State the role of food substance(s) identified in solution B in your body. (3 mk)
4. What is the role of HCl in testing for carbohydrates? (2 mk)

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You are provided with specimen M: (a) Carefully examine the specimen and then answer the following questions: (i) Identify the specimen by its common name. (ii) Classify the specimen to the Class level. (iii) Draw a well labelled floral diagram for the specimen. (iv) Write a floral formula for the floral diagram you have drawn in 3 (a) (iii). (b) By using a scalpel, cut the longitudinal section of specimen M. Take one part with the cut surface facing upwards. Observe it using a hand lens and then, draw a well labelled diagram showing internal and external parts of the specimen M.

1. Identify the specimen by its common name. (1 mk)
2. Classify the specimen to the Class level. (1 mk)
3. Draw a well labelled floral diagram for the specimen. (4 mk)
4. Write a floral formula for the floral diagram you have drawn in 3 (a) (iii). (2 mk)
5. By using a scalpel, cut the longitudinal section of specimen M. Take one part with the cut surface facing upwards. Observe it using a hand lens and then, draw a well labelled diagram showing internal and external parts of the specimen M. (7 mk)

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