Where are exchange epithelial cells found? What did the alveoli look like on the slide image, and why is their structure important? Do these cells have tight junctions? Explain why.

one is through turgidity. this occurs before ground tissue ( collenchyma

and sclerenchyma cells) become well

developed to give structural support to the plant as it grows bigger. the xylem

tissue (composed of rigid tissue) of the young

plant render this support and also maintaining osmotic turgidity of the surrounding

plant cells.