# Life Sciences Paper 1, November 2024, question 3.5.2(a)

> Seedlings of the same species were grown in a dark cupboard for three days. Marked mark by mark. Q3.5.2(a), Life Sciences Paper 1 November 2024, 1 mark.

Canonical: https://sharpkop.co.za/life-sciences/2024-nov-p1/q3-5-2-a/
Last updated: 2026-11-12

Subject: Life Sciences. Source: Based on Nov 2024 · Paper 1 · Q3.5.2(a). Marks: 1. Not yet checked by a teacher.

## Question 3.5.2(a) (1 mark)

Set P: the seedlings were left untouched, with their shoot tips still in place.
Set Q: the shoot tips were removed and each was replaced by a small block of agar jelly that contained auxins.
Set R: the shoot tips were removed and each was replaced by a small block of plain agar jelly with no auxins.
Every seedling stood upright in the dark, with no light from any side.

Seedlings of the same species were grown in a dark cupboard for three days. In the setup described below, state what you would expect to see in the seedlings of Set P.

Figure: Three seedlings standing in a dark cupboard at the start of the experiment. The first (P) still has its shoot tip. The second (Q) has had the tip cut off and has a small block of agar jelly containing auxins on the cut end. The third (R) has had the tip cut off and has a block of plain agar jelly with no auxins on the cut end.

## Practise it

[Answer this question](https://sharpkop.co.za/life-sciences/2024-nov-p1/q3-5-2-a/) and see it marked mark by mark, with the reason for every lost mark.

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