Final answer:
Parenchyma tissue is identified by small, boxlike cells with large nuclei, prevalent in various parts of the plant and responsible for important functions like photosynthesis and wound healing. The correct option is 1.
Step-by-step explanation:
The plant tissue characterized by small, six-sided, boxlike cells which usually lack vacuoles and have a centrally located, relatively large nucleus is the parenchyma tissue. These cells are prevalent throughout the plant and are involved in functions such as photosynthesis, storage, and wound healing.
Parenchyma cells are found in the stem, roots, interior of leaves, and the pulp of fruits. They play a critical role in the plant's metabolism and maintenance. For example, in stem cross-sections, both the cortex and pith are made of parenchyma cells. Additionally, these cells form the bulk of the inside of a plant, highlighting their significance in plant structure and function.