Syllabus Edition

First teaching 2023

First exams 2025

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Organelles & Compartmentalisation (HL IB Biology)

Exam Questions

10 mins1 question
1a
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1 mark

The diagram below shows a ribosome producing proteins that are to be secreted from the cell. In order for this to occur, the ribosome must bind to organelle X.

VMU7SmIw_hl-ib-7-3-e-q4a

State the name of organelle X.

1b
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2 marks

Binding to Y will result in the ribosome moving towards organelle X and binding to Z.

Identify Y and Z in the diagram.

1c
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1 mark

State the effect that binding to Y would have on the process of translation.

1d
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2 marks

Describe the path of the protein after it is produced, until it is secreted out of the cell.

1e
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4 marks

Ribosomes play an important role during the process of translation.

Describe the structure of ribosomes.

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