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the membrane surrounding the vacuole. It is similar in structure and function to the cell membrane.
specialised proteins which catalyse chemical reactions and thereby speed up chemical reactions...
the non-living ground tissue with thick-walled cells that gives strength, support and protection...
a form of malnutrition caused by a severe shortage of protein in the diet.
plant-like organisms that live and grow in water; they make their own organic food by the...