Answer :

Elephants use carbohydrates and protein for energy. Lions use protein and fat for energy.

What are macromolecule and energy?

Carbohydrates are the macromolecule that serves as an organism's main source of energy.

For instance, macromolecules offer structural support, a way to store energy, the capacity to store and access genetic data, and the capacity to quicken metabolic processes. Proteins, carbohydrates, nucleic acids, and lipids are the four main categories of macromolecules that perform these crucial roles in a cell's life.

  1. Elephants use carbohydrates and protein for energy. Elephants eat 3 different types of hay.
  2. Each type of hay has mainly carbohydrates plus smaller amounts of protein. Hay has no lipids.
  3. Lions use protein and fat for energy.
  4. Lions eat 3 different types of animal (meat). Each type of animal has mainly protein plus a smaller amount of protein.
  5. During chemical reactions such as digestion, the bonds in large molecules are broken and energy is released.
  6. Since elephants eat hay, they are getting carbohydrates and proteins to use for energy when the hay is digested.  
  7. The energy released when the food molecule bonds are broken can be used for survival.
  8. During chemical reactions such as digestion, the bonds in large molecules are broken and energy is released.
  9. Since lions eat beef, deer, and pig meat, they are getting proteins and lipids to use for energy after digestion.

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