O-LevelBiologyPlant Nutrition5090/11 · Oct/Nov 2010 · Q51 Mark
Lack of nitrate ions (NO3¯) in flowering plants causes yellowing of leaves and poor growth whereas lack of magnesium ions (Mg2+) causes yellowing between veins of leaves. What explains these differences? [Table]
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.
A✓ X ✓ ✓
B✓ X X ✓
CX ✓ X ✓
DX ✓ ✓ X
✓ Correct answer
A: ✓ X ✓ ✓
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 →