Hydrogen fuel cells power the shuttle's electrical systems, producing a clean byproduct-pure water, which the crew drinks. A fuel cell combines hydrogen and oxygen to produce electricity, heat, and water. Fuel cells are often compared to batteries. Both convert the energy produced by a chemical reaction into usable electric power. However, the fuel cell will produce electricity as long as fuel (hydrogen) is supplied, never losing its charge.
Chlorophyll b is a form of chlorophyll. Chlorophyll b helps in photosynthesis by absorbing light energy. It is more soluble than chlorophyll a in polar solvents because of its carbonyl group. Its color is yellow, and it primarily absorbs blue light.n land plants, the light-harvesting antennae around photosystem II contain the majority of chlorophyll b. Hence, in shade-adapted chloroplasts, which have an increased ratio of photosystem II to photosystem I, there is a lower ratio of chlorophyll a to chlorophyll b.
Report Abuse. Well the chlorophyll helps the plant go through photosynthesis by absorbing the the light into the plant and transferring it into food. The definition for chlorophyll is the pigment in green plants that absorbs solar energy.Now chlorophyll a is important because chlorophyll is the molecule found in all plant cells and therefore its concentration is what is reported during chlorophyll analysis.uring this process of photosynthesis, chlorophyll produces energy, in the form of sugary carbohydrates, which will power all of the plant's essential growth and development. This amazing molecule also gives plants their distinctive green color.