DP Biology (last assessment 2024)

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Question 23M.2.HL.TZ2.a

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Date May 2023 Marks available [Maximum mark: 2] Reference code 23M.2.HL.TZ2.a
Level HL Paper 2 Time zone TZ2
Command term State Question number a Adapted from N/A
a.
[Maximum mark: 2]
23M.2.HL.TZ2.a

State the name and function of structures I and II.

Structure I name and function: 

 

Structure II name and function:

 

[2]

Markscheme
  1. I is the stigma which receives the pollen/where pollen lands/is captured (during pollination);
  2. II is the anther and produces/contains/releases pollen;

Both name and function must be included in each marking point.

The role in pollination should be stated. Do not accept “pollination” on its own.

Examiners report

Many candidates confused the stigma and the anther. In many cases, even if the structures were correctly identified, a function was not stated (as requested by the question).

Syllabus sections