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Biology · Karatasi 2B · 2022

3 maswali

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Maswali (3)

Sehemu A

1. 20 alamas

Dissect the provided specimen T in the usual way to display the reproductive system and respond to the following questions: (a) Why should the specimen be anaesthetized before dissection? (b) Draw a diagram of the dissected specimen T and label five parts that form the reproductive system. (c) What is the sex of specimen T? Give four reasons.

  1. Why should the specimen be anaesthetized before dissection? (0 alama)
  2. Draw a diagram of the dissected specimen T and label five parts that form the reproductive system. (0 alama)
  3. What is the sex of specimen T? Give four reasons. (0 alama)

Boresha ili kuona majibu ya mfano.

Sehemu B

2. 15 alamas

You are provided with solution U and answer the following questions: (a) Using the reagents provided, carry out the biochemical test to identify food substance (s) contained in solution U. Tabulate your results, as shown in the following table: Food Test Procedure Observation Inference (b) Identify two natural food stuffs from which solution U could have been extracted from. (c) State the first site of digestion, the digestive juice and the product of digestion of the food substances identified in solution U.

  1. Using the reagents provided, carry out the biochemical test to identify food substance (s) contained in solution U. Tabulate your results, as shown in the following table: Food Test Procedure Observation Inference (0 alama)
  2. Identify two natural food stuffs from which solution U could have been extracted from. (0 alama)
  3. State the first site of digestion, the digestive juice and the product of digestion of the food substances identified in solution U. (0 alama)

Boresha ili kuona majibu ya mfano.

Sehemu C

3. 15 alamas

Observe the provided specimens V, W and Y and then answer the following questions: (a) In what ways is specimen Y useful to human beings? Give two points. (b) Why is specimen Y placed in the Class Insecta? Give three reasons. (c) Using three observable features, differentiate between specimen V and Y. (d) Draw specimen W and label three parts

  1. In what ways is specimen Y useful to human beings? Give two points. (0 alama)
  2. Why is specimen Y placed in the Class Insecta? Give three reasons. (0 alama)
  3. Using three observable features, differentiate between specimen V and Y. (0 alama)
  4. Draw specimen W and label three parts (0 alama)

Boresha ili kuona majibu ya mfano.

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