It starts the energy chain withen the food chain
You’ll need to attach an image showing the choices or type them. But structures that are found in both plant and animal cells include the cell membrane, ribosomes, cytoplasm, and DNA.
Macromolecules like carbs, protein and lipids (fats) are made of smaller molecules like simple sugars (carbs), amino acids (protein), or fatty acids (lipids). These molecules must be broken down to be used.
Let me know if you need further elaboration, I took human nutrition last semester. :)