The Renaissance was an influential cultural movement which brought about a period of scientific revolution and artistic transformation, at the dawn of modern European history. It marks the transitional period between the end of the Middle Ages and the start of the Modern Age.
1 cell wall Outer structure which provides support and prevents the cell from bursting by the uptake of water by osmosis; plant, fungal and bacterial cell walls have different structures and chemical compositions.  chloroplast Contains the green pigment chlorophyll; the site of photosynthesis.
Plant Cell Walls. All plant cells have a plasma membrane just like an animal cell, which provides the same barrier and regulates transport. However, plant cells also have a specialized structure called the cell wall. The cell wall is a protective layer surrounding the cell on the outside of the plasma membrane. wilting plant! Notice, however, that even in a hypertonic environment, the cell wall helps maintain the shape of the plant cell. As soon as you started watering the plant regularly, the plants were again in an isotonic, or equal, water environment.