What are the different types of parenchyma? Write their special features.

Parenchyma is a simple permanent plant tissue with thin-walled, living cells that serves various functions, and it differentiates into specialized types based on specific roles. The main types include chlorenchyma (parenchyma with chloroplasts for photosynthesis), aerenchyma (parenchyma with large air cavities for buoyancy and gas exchange), and storage parenchyma (for storing food, water, or waste products). Each type has structural modifications that make it exceptionally suited to its particular function in plant survival and growth.

Chlorenchyma is found in leaves and green stems, with cells packed with chloroplasts that capture sunlight and convert it into chemical energy through photosynthesis—this is the tissue that makes plants green and self-sufficient. Aerenchyma develops in aquatic plants and plants growing in waterlogged soils, featuring large air spaces between cells that create channels for oxygen movement to submerged parts and provide buoyancy to keep plants afloat; you can observe this in water lilies and lotus stems which feel spongy when cut. Storage parenchyma appears in roots like carrots and potatoes, fruits, and seeds, with cells containing starch grains, oils, proteins, or water reserves that plants use during dormancy or rapid growth periods. Some parenchyma cells in xerophytic (drought-adapted) plants develop thick walls and store water, helping cacti and succulents survive extended dry periods. The remarkable feature of all parenchyma types is that these cells remain alive at maturity and can dedifferentiate to form new tissues during wound healing or vegetative propagation, which is why you can grow a new plant from a stem cutting.