Question

Chlorosis was a disease historically noted to be cured by which micronutrient?

1) Iron
2) Calcium
3) Vitamin C
4) Zinc

Answer 1

Chlorosis was historically cured by iron, a micronutrient. Iron is essential for the synthesis of chlorophyll, and when plants have an iron deficiency, they cannot produce enough chlorophyll, resulting in yellowing leaves.

Step-by-step explanation:

Chlorosis is a condition in which plants have yellowing leaves due to a lack of chlorophyll. Historically, chlorosis was noted to be cured by the micronutrient iron. Iron is an essential micronutrient for plants as it is involved in the synthesis of chlorophyll. When plants have iron deficiency, they cannot produce enough chlorophyll, leading to the yellowing of leaves.