Final answer:
Chloroplasts are found in plant cells because they perform photosynthesis, a process that converts solar energy into chemical energy providing food for the plant. Animal cells, which do not photosynthesize, do not contain chloroplasts.
Step-by-step explanation:
Plant cells contain organelles called chloroplasts that are not found in animal cells. The presence of chloroplasts is because they are crucial for the process of photosynthesis, where plants convert solar energy into chemical energy in the form of glucose, which serves as "food" for the plant.
Unlike plants, animals are unable to produce their own food through photosynthesis and are considered heterotrophs, needing to ingest their food.
Therefore, they do not have or require chloroplasts. Hence, the correct answer to why plant cells have chloroplasts but animal cells do not is option C) Chloroplasts are used in the process of photosynthesis, where plants make their own food.
A chloroplast is characterized by its two membranes and a high concentration of chlorophyll.
Other plastid types, such as the leucoplast and the chromoplast, contain little chlorophyll and do not carry out photosynthesis.