LABORATORY REVIEW
CELL RESPIRATION
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Detailed explanation-1: -In plants, pigment molecules absorb light wavelength ranges 400 nm to 700 nm. This range is traditionally referred to as photosynthetically-active radiation (PAR). The color of the pigment comes from the wavelengths of light that are primarily reflected.
Detailed explanation-2: -Chlorophyll a absorbs violet and orange light the most. Chlorophyll b absorbs mostly blue and yellow light. They both also absorb light of other wavelengths with less intensity.
Detailed explanation-3: -Visible light ranges from low blue to far-red light and is described as the wavelengths between 380 nm and 750 nm, although this varies between individuals. The region between 400 nm and 700 nm is what plants use to drive photosynthesis and is typically referred to as Photosynthetically Active Radiation (PAR).
Detailed explanation-4: -Violet-blue and Orange-red light wavelengths are absorbed by chlorophyll A. The rate of photosynthesis is more in blue and red light.