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Q16 - Flower Structure - Symmetry, Pollination, and Calyx

Theoretical 1 Real exam question - full text reproduced under IBO's CC BY-NC-SA 4.0 license

The following figure shows the structure of a flower.

Diagram of a flower’s structure, showing its floral parts and symmetry. Structure of the flower in question.

Using the figure, determine whether the following statements are true or false:

A. This is a zygomorphic flower.
B. This flower belongs to a plant pollinated by wind.
C. This flower does not have a double calyx.
D. This is a cleistogamous flower (i.e. does not open).


Question reproduced from IBO 2022, Theoretical Paper 1, licensed under CC BY-NC-SA 4.0 - attributed to the International Biology Olympiad. Open the full exam PDF · Community solutions (unofficial)