Plants need magnesium and nitrates for healthy growth. (a) (i) What substance do plants make using magnesium? __ .... (ii) What type of substance do plants make using nitrates? __

## Step 1<br />Magnesium is a vital component of chlorophyll, which is the pigment responsible for the green color of plants. Chlorophyll plays a crucial role in photosynthesis, a process where plants convert light energy into chemical energy. Therefore, the substance that plants make using magnesium is chlorophyll.<br /><br />## Step 2<br />Nitrates are a type of nutrient that plants absorb from the soil. They are essential for the synthesis of amino acids, which are the building blocks of proteins. Proteins are vital for the growth and development of Therefore, the type of substance that plants make using nitrates is proteins.