WRITE THE DEFINITION FOR EACH PLANT CELL ORGANELLE LISTED. 1. chloroplast 2.cell wall 3.plastids 4.central vacuole.

chloroplast : a plastid that contains chlorophyll and in which photosynthesis takes place. cell wall : a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria. In the algae and higher plants it consists mainly of cellulose. plastids : any of a class of small organelles, such as chloroplasts, in the cytoplasm of plant cells, containing pigment or food. central vacuole : The central vacuole is a cellular organelle found in plant cells. It is often the largest organelle in the cell. It is surrounded by a membrane and functions to hold materials and wastes. It also functions to maintain the proper pressure within the plant cells to provide structure and support for the growing plant

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.

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