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Question 19N.3.HL.TZ0.2a.ii

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Date November 2019 Marks available [Maximum mark: 1] Reference code 19N.3.HL.TZ0.2a.ii
Level HL Paper 3 Time zone TZ0
Command term Suggest Question number a.ii Adapted from N/A
a.ii.
[Maximum mark: 1]
19N.3.HL.TZ0.2a.ii

A student designed an experiment to study the transpiration through the leaves of a tomato plant (Solanum lycopersicum). Measurements were taken in the initial conditions with five leaves on a tomato shoot and then again after each of the five leaves was removed.

[Source: R. C. Hodson and J. Acuff . 2006. Water transport in plants: anatomy and physiology in
Tested Studies for Laboratory Teaching, Volume 27 pp 163–183]

(a.ii)

Transpiration continued after the fifth leaf had been removed. Suggest what can be concluded.

[1]

Markscheme

transpiration does not only occur in the leaves
OR
transpiration through stem/shoot ✔

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