★★★VACUOLES★★★
DEFINITION;
➤VACUOLES ARE FLUID FILLED SINGLE MEMBRANE BOUND ORGANELLES.
CELLS HAVE MANY SMALL VACUOLES IN THEIR CYTOPLASM.
PRESENCE;
➤ALTHOUGH VACUOLES ARE PRESENT IN BOTH ANIMAL AND PLANT CELLS.
MOSTLY FOUND;
➤THEY ARE PARTICULARLY LARGE AND ABUNDANT IN PLANT CELLS
OFTEN OCCUPYING A MAJOR PORTION THE CELL VOLUME AND
FORCING THE REMAINING INTRACELLULAR INTO A THIN
PERIPHERAL LAYER.
BOUNDED BY;
➤THESE VACUOLES ARE BOUNDED BY A SINGLE MEMBRANE AND
ARE FORMED BY THE COALESCENCE OF SMALLER VACUOLES
DURING PLANT'S GROWTH AND DEVELOPMENT.
FUNCTION;
➤VACUOLES SERVE TO EXPAND THE PLANT CELL WITHOUT DILUTING
ITS CYTOPLASM.
➤ALSO FUNCTION AS THE SITE FOR THE STORAGE OF WATER AND CELL
PRODUCT OR METABOLIC INTERMEDIATES.
IMPORTANCE;
➤THE PLANT VACUOLE IS THE MAJOR CONTRIBUTOR TO THE TORGOR THAT
PROVIDES SUPPORT TO THE INDIVIDUAL PLANT CELL AND CONTRIBUTES
TO THE RIGIDITY OF LEAVES AND YOUNGER PARTS OF THE PLANTS.
0 Comments