Here's why:
* Parenchyma cells are the most common type of plant cell and are found throughout the plant body.
* They are responsible for photosynthesis, storage of food and water, and other metabolic functions.
* Chloroplasts, the organelles responsible for photosynthesis, are abundant in parenchyma cells.
While other plant cell types exist, they don't have the primary function of photosynthesis:
* Collenchyma cells provide support and flexibility.
* Sclerenchyma cells provide structural support and rigidity.
* Xylem cells transport water and minerals.
* Phloem cells transport sugars and other nutrients.
