Biology Paper 3 Questions - Maranda Mocks 2022 Exams

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Paper 3

Instructions to candidates

  • Answer all the questions.


  1. Study the photographs below and answer the questions that follow.
          SPECIMEN Q                                                    SPECIMEN R
    1. The two specimen belong to the same Phylum. Giving two reasons, name the phylum of the specimen. ( 3 marks)
      1. Phylum
      2. Reasons
      1. Name the class to which the specimen belong. (1mark)
      2. State three characteristic features common to both specimens that support your answer. (3 marks)
    3. Based on observation from the photos, state how the mouthparts of specimen Q and R are adapted to their functions. (2 marks)
      1. Specimen Q
      2. Specimen R
    4. Citing visible features, state two modes of locomotion for specimen Q. (2 marks)
  2. You are provided with suspension labelled M.
    1. Using the reagents provided, test for the food substance in the suspension.
      In the table below record the food tested, procedure, observation and conclusion.
      (16 marks)
      Food substance Procedure Observation Conclusion








    2. Name two enzymes that may be required to digest the food substances in the suspension M in the alimentary canal in human beings. (2 marks)
    3. State the role of hydrochloric acid in the experiment. ( 1 mark)
  3. Study the photographs below and answer the questions that follow.
                                      Q                                             K
      1. Suggest the agent of pollination for specimen Q. ( 1 mark)
      2. Give two adaptations of the flower that support your answer in a (i) above. (2 marks)
    2. State five differences between specimen Q and K. (5 marks)
      Specimen Q  Specimen K 




    3. On the photograph of specimen K, label the following:- ( 2 marks)
      1. Stigma
      2. Anther

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