(mÄth'Än') A colorless, odorless, flammable gas that is the simplest hydrocarbon. It is the major constituent of natural gas and is released during the decomposition of plant or other organic compounds, as in marshes and coal mines. Methane is the first member of the alkane series.
In photosynthesis, solar energy is converted to chemical energy. The chemical energy is stored in the form of glucose (sugar). Carbon dioxide, water, and sunlight are used to produce glucose, oxygen, and water.
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.