DP Biology (first assessment 2025)

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Question 19M.2.SL.TZ2.4c

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Date May 2019 Marks available [Maximum mark: 2] Reference code 19M.2.SL.TZ2.4c
Level SL Paper 2 Time zone TZ2
Command term Outline Question number c Adapted from N/A
c.
[Maximum mark: 2]
19M.2.SL.TZ2.4c
(c)

Successful sexual reproduction in flowering plants depends on several essential processes. Outline the role of pollination and seed dispersal.

Pollination:

 

Seed dispersal:

 

 

[2]

Markscheme

pollination:
transfer/dispersal/movement of pollen from anther/stamen to stigma
OR
transfer/dispersal/movement of pollen between plants/flowers prior to/allowing fertilization ✔ 

seed dispersal:
«strategy of» distribution of seeds so that new plants have space/nutrients to develop/avoid competition/colonize new habitats ✔

Accept any other valid role.

Accept OWTTE. Answers must be about the role.

Examiners report

Most students were able to outline the role of seed dispersal in minimizing competition between parent and offspring. Slightly fewer were successful in correctly outlining the role of pollination in sexual reproduction with a number being unable to correctly draw upon the necessary vocabulary.

Syllabus sections