There are some bacteria which are capable of conducting photosynthesis without producing oxygen in the process and bacteriochlorophyll is the main structural unit of the photosynthetic component of such bacteria.
Purple a green sulfur bacteria are the ones that contain bacteriochlorophyll.
bacteriochlorophyll's function is the same as that of chlorophyll in plants.
<em>Chromatium, Thiospirillum, Thidictyon </em>are the bacteria that contain bacteriochlorophyll.
Energy or caloric and protein needs are lower on a body weight basis in childhood than during the pre-adolescent toddler or preschool years. The protein requirement of an individual is the lowest level of dietary protein intake that will balance the losses of nitrogen from the body in persons maintaining energy balance at modest levels of physical activity.
