APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -All known photoautotrophs perform photosynthesis. Examples include plants, algae, and cyanobacteria.

Detailed explanation-2: -In other words, most algae are autotrophs or more specifically, photoautotrophs (reflecting their use of light energy to generate nutrients). However, there exist certain algal species that need to obtain their nutrition solely from outside sources; that is, they are heterotrophic.

Detailed explanation-3: -Algae, along with plants and some bacteria and fungi, are autotrophs. Autotrophs are the producers in the food chain, meaning they create their own nutrients and energy. Kelp, like most autotrophs, creates energy through a process called photosynthesis.

Detailed explanation-4: -Oxygenic photoautotrophs such as plants, green algae, and cyanobacteria are blessed with the capacity to convert solar energy into chemical energy and releases oxygen as a byproduct; both are required for the fundamental growth of life on the earth (Kirilovsky and Kerfeld, 2012).

Detailed explanation-5: -Definition of Photoautotrophs: In terrestrial environments plants are the predominant variety, while aquatic environments include a range of phototrophic organisms such as algae (e.g. kelp), protists (such as euglena) and bacteria (such as cyanobacteria)..