Repetition Definition. Repetition is a literary device that repeats the same words or phrases a few times to make an idea clearer. There are several types of repetitions commonly used in both prose and poetry.
Chlorophyll looks green to us because most of the green wavelengths are reflected rather than being absorbed. For this reason, green light is not an effective color of light to power photosynthesis. Chlorophyll a and b together absorb light most effectively in the blue to violet range and the orange to red range.
Photosynthesis uses two types of chlorophyll, chlorophyll a and b, to produce energy. Chlorophyll A. Chlorophyll a absorbs energy from wavelengths of blue-violet and orange-red light at 675 nm. It reflects green light which gives chlorophyll its green appearance.hey work best together. Summary. 1. Chlorophyll a is the primary photosynthetic pigment while chlorophyll b is the accessory pigment that collects energy and passes it on to chlorophyll a. 2.