A neuron is in a Polarized state when the gates of the membrane are closed, and there is slight negative charge inside the membrane The neuron does transmit signals, during this time. The positively charges ions are found outside the cell, and negative ions are inside the cells.
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As shown in detail in the absorption spectra, chlorophyll absorbs light in the red (long wavelength) and the blue (short wavelength) regions of the visible light spectrum. Green light is not absorbed but reflected, making the plant appear green