Fig. 1.1 is a photomicrograph of a cross-section of part of a leaf. Fig. 1.1 Explain why plants need nitrate ions. ............................................................................................................................................... . ............................................................................................................................................... . ............................................................................................................................................... . ............................................................................................................................................... . .........................................................................................................................................

Biology

IGCSE&ALevel

CAIE

Exam No：0610_w24_qp_41 Year：2024 Question No：1(d)

Answer:

6.3.1 Describe the importance of: – nitrate ions for making amino acids – magnesium ions for making chlorophyll

6.3.2 Explain the effects of nitrate ion and magnesium ion deficiency on plant growth