Cell Structure 2


  • 1) A student wanted to investigate the growth of bacteria. During his research, the student drew a picture of a bacterium. Label organelles A, B and C 3 Marks



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  • 2) Structure D is a ribosome. Give the function of a ribosome. 1 Marks



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  • 3) To investigate their growth, the student prepared agar plates of bacteria. Name the process by which bacteria divide 1 Marks


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  • 4) State at what temperature the student should incubate the agar plates at in her school laboratory, and explain why this is important 2 Marks


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  • 5) The mean division time of the bacteria was once every 19.5 minutes. If there 100 bacteria were added to an agar plate at the start of the investigation, how many bacteria would there be after 4 hours? Give your answer in standard form 4 Marks


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  • 6) The student grew the bacteria on agar jelly in a Petri dish. Describe each of the steps required for the student to prepare an uncontaminated culture and explain why they are examples of aseptic techniques 6 Marks


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Revision Resources 2023-24

The PE Classroom Revision Resources are now available to pre-order at a discounted rate! 

All courses are currently available for pre-order at a price of £99 (this will increase in January). All teachers who already have a Resource Package membership of the PE Classroom will be able to get access to the Revision Package for a for £49.

Follow this link to find trial topics for each course and a make a pre-order: