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select the part whose main job is to control the substances enter and leave a plant cell.
The function of control and coordination in plants is performed by the chemical substances called plant hormones and plant hormones are called Phytohormones .
by its roots
They are called guard cells. They control how much carbon dioxide and water is entering the plant.
The gas for photosynthesis...carbon dioxide diffuses into the plant through its stomata ('holes' in the leaf's underside). Water is transported through the plant in the xylem tube (waterproof tube that makes up part of the plants veins and covers the whole plants structure) as it is drawn up from the roots where it is absorbed. It is drawn up by the water evaporationg through the stomata. The light obviously enters the leaf and enters the chloroplasts where it combines with the chlorophyll to provide the energy for the photosynthesis reaction. The products from photosynthesis...glucose and oxygen are removed from the plant leaves. Glucose through the phloem tube (another of the veins) and oxygen through diffusion through the stomata or it is used up in respiration.
The cell Membrane allows substances to go in and out
Leaves
The cell membrane protects the cell and regulates what substances enter and leave the cell.
IT depends on what cell. In the plant cell it is the cell wall and the cell membrane. But in the animal cell it is only the cell membrane.
If substances did not pass through cell membranes, then all single-celled and multicellular organisms would die.
to control the movement of substances into and out of the cell
cell membrane
Pores called stomata, which open and close by guard cells.
The nuclear membrane.
The function of control and coordination in plants is performed by the chemical substances called plant hormones and plant hormones are called Phytohormones .
pores in the leaves and stomates allow gases to enter and leave the plant
in enters through something called stomata
by its roots