Answer:
Nitrogen is taken up by plant roots and combined into organic substances in the plant, such as enzymes, proteins and chlorophyll. ... Plants use the nitrogen in the soil to grow. People and animals eat the plants; then animal and plant residues return nitrogen to the soil again, completing the cycle.
Explanation:
Proteins are broken down into amino acids whereas fats are digested mostly into fatty acids & glycerol
C. metaphase
this looks like an mcq from A levels
