Question

why are chloroplasts essential to the survival of many animals as well as plants?
chloroplasts allow both animals and plants to break down organic molecules and use the energy stored in the molecules.
chloroplasts are rich in fats and lipids that are generated by photosynthesis satisfying the energy requirements of many animals.
photosynthesis generates protein building blocks essential to animal functioning that cannot be acquired by animals in any other way.
animals do not have chloroplasts and must depend on organisms that can photosynthesize the energy they need.
many animals can only produce their own energy after they have consumed sufficient photosynthetic chloroplasts.

Explanation:

• Analyze each option:
• Option 1: Chloroplasts are for photosynthesis (making energy), not breaking down organic molecules (that's mitochondria's role in cells with them; animals don't have chloroplasts). Eliminate.
• Option 2: Chloroplasts do photosynthesis to make glucose, not rich in fats/lipids for energy. Eliminate.
• Option 3: Photosynthesis makes glucose (energy source), not protein building blocks (amino acids) that animals can get from other sources. Eliminate.
• Option 4: Animals lack chloroplasts, so they rely on photosynthetic organisms (like plants) that use chloroplasts to make energy (glucose) which animals can then use. This matches the role of chloroplasts in providing the base energy source for food chains.
• Option 5: Animals can't produce energy from chloroplasts they consume; they get energy from the organic molecules made by photosynthetic organisms. Eliminate.

Answer:

D. Animals do not have chloroplasts and must depend on organisms that can photosynthesize the energy they need