O-LevelBiologyPlant Nutrition5090/11 · May/June 2011 · Q91 Mark
The diagram shows a green shoot photosynthesising under a glass jar. This was used as a control experiment in a laboratory investigation. Which diagram shows the other experiment that should be done to investigate the need for carbon dioxide in photosynthesis?
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
ASetup with green plant in glass jar, in sunshine, airtight bung, filter paper, water, and sodium hydroxide solution below.
BSetup with green plant in glass jar, in dark, airtight bung, hydrogen-carbonate indicator, and water below.
CSetup with green plant in glass jar, in sunshine, airtight bung, hydrogen-carbonate indicator, and water below.
DSetup with green plant in glass jar, in sunshine, airtight bung, oil layer, and water below.
✓ Correct answer
A: Setup with green plant in glass jar, in sunshine, airtight bung, filter paper, water, and sodium hydroxide solution below.
Practise more questions on this topic
Oracle Prep sorts past-paper questions by topic, so you can drill Plant Nutrition and see which topics are most likely to come up next.
Sign up free →