Purple bacteria are proteobacteria that are phototrophic, that is, capable of producing energy through photosynthesis.[20]

Purple bacteria are proteobacteria that are phototrophic, that is, capable of producing energy through photosynthesis.[62]

Purple bacteria are proteobacteria that are phototrophic, that is, capable of producing energy through photosynthesis.[60]

In temperatures outside the range, increased metabolic energy is required to maintain normal body temperature.

Bound to proteins called type 1 rhodopsins, retinal allows certain microorganisms to convert light into metabolic energy.

Generally, the fats in liquid oils at room temperature are usually healthy and provide metabolic energy.

Mainly it stimulates and greatly increases metabolic energy to burn fat and at the same time build muscle mass.

When it reaches the organs, by the same process, it is transformed into metabolic energy or "energy of the second differentiation".

The body needs energy to keep itself warm – a low body temperature, therefore, usually accompanies low metabolic energy.

Commonly overlooked, however, is melanin's ability to convert gamma and ultraviolet radiation into metabolic energy within living systems.

Commonly overlooked, however, is melanin’s ability to convert gamma and ultraviolet radiation into metabolic energy within living systems.

But melanin also converts both gamma and ultraviolet radiation into metabolic energy in living systems.

The biological significance of carbohydrates is unquestionable in the natural world with its essential roles in providing metabolic energy.

ATP often provides metabolic energy to healthy cells as well, and some nutritional supplements, notably Coenzyme Q10, are known for increasing ATP.

The diagnosis for many of these symptoms is low metabolic energy, the cause in many cases is either adrenal fatigue or low thyroid function.

Excess alcohol (7 kcal per gram) can increase body weight; it will also delay the use of fat as a metabolic fuel during exercise.