Pertussis (Whooping Cough) Pertussis, also known as whooping cough, is a highly contagious respiratory disease. It is caused by the bacterium Bordetella pertussis. Pertussis is known for uncontrollable, violent coughing which often makes it hard to breathe. After fits of many coughs, someone with pertussis often needs to take deep breaths which result in a whooping sound.
The carotenoids are red, orange, and yellow pigments synthesized by all green plants and some microbes. They have an essential function in photosynthesis and in attracting the attention of animals.he carotenoids are red, orange, and yellow pigments synthesized by all green plants and some microbes. They have an essential function in photosynthesis and in attracting the attention of animals.
Purpose. The role carotenoids play in human health is not well understood. Carotenoids are antioxidants that react with free radicals. Molecules called free radicals form during normal cell metabolism and with exposure to ultraviolet light or toxins such as cigarette smoke.arotenoids are highly colored red, orange, and yellow pigments found in many vegetables. A German scientist isolated the first carotenoid in 1826 from carrots and named it beta-carotene. Since then, more than 600 carotenoids have been identified in plants, algae, fungi, and bacteria.