Nutrition and gas exchange in plants

Question 1

Why are plants described as autotrophs?

Answer 1

They carry out autotrophic nutritioncan (photosynthesis), they make organic substances (e.g. carbohydrates) from inorganic substances (e.g. carbon dioxide & water).

Question 2

Minerals required for plants to make enzymes and chlorophyll

Answer 2

Nitrogen, Phosphorus, Potassium, Magnesium are absorbed in the form of ions from the soil by roots.