Parenchyma tissue is generally present in the fruits, leaves and flower regions.

Explanation:
Parenchyma Tissue is basically a simple permanent tissue. It comprises of simple, living and undifferentiated cells that are modified accordingly for various functions.

Parenchyma tissue makes up the
1. Mesophyll of leaves
2. Soft tissues of fruits and flowers

Note that these tissues can also be found in young soft stems.