Practise AP Biology 1.2 questions by matching elements such as nitrogen and phosphorus to macromolecules and interpreting how nutrient limits affect biological synthesis.
A typical bag of fertilizer contains high levels of nitrogen, phosphorus, and potassium but trace amounts of magnesium and calcium. Which of the following best matches the fertilizer component with the molecule in which it will be incorporated by organisms in the area?
Figure 1. Change in energy over the course of four chemical reactions
Nitrogen will be incorporated into nucleic acids.
Phosphorus will be incorporated into amino acids.
Potassium will be incorporated into lipids.
Magnesium will be incorporated into carbohydrates.