O-LevelBiologyTransport in Plants5090/12 · May/June 2016 · Q31 Mark

The diagrams show a cylindrical net packed with rubber balloons full of air. The structure is used by a teacher to explain wilting. [Figure showing 'all the balloons fully inflated' and 'the same number of balloons with some of the air let out'] What is represented by the parts of the structure shown?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

Aair: cells, balloons: cell sap, net: cell walls, rubber: epidermis

Bair: cell sap, balloons: cells, net: epidermis, rubber: cell walls

Cair: cell walls, balloons: epidermis, net: cell sap, rubber: cells

Dair: epidermis, balloons: cell walls, net: cells, rubber: cell sap

✓ Correct answer

B: air: cell sap, balloons: cells, net: epidermis, rubber: cell walls

Oracle Prep sorts past-paper questions by topic, so you can drill Transport in Plants and see which topics are most likely to come up next.

Topic: Transport in Plants, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2016 Paper 1 Variant 2, question 3.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content