AP BIOLOGY

Detailed explanation-1: -Chloroplasts are the food producers of the cell. The organelles are only found in plant cells and some protists such as algae. Animal cells do not have chloroplasts. Chloroplasts work to convert light energy of the Sun into sugars that can be used by cells.

Detailed explanation-2: -However, not all parts of a plant structure are suitable to do this, so not all types of plant cells contain chloroplasts. The plant cells that make up the roots and/or tubers typically do not contain chloroplasts since it would be useless to have them.

Detailed explanation-3: -Chloroplasts contain green pigment called chlorophyll which helps in manufacture of food through the process of photosynthesis. Since, animals do not manufacture food so they do not need chloroplast. And hence, chloroplast is found only in plant cell.

Detailed explanation-4: -Rafflesia was known to lack chloroplasts because it obtains all of its sugars, or energy, from its host vine.