NEET BIOLOGY

Detailed explanation-1: -Plants, algae, and cyanobacteria, known as photoautotrophs, are the only organisms capable of performing photosynthesis. Heterotrophs, unable to produce their own food, rely on the carbohydrates produced by photosynthetic organisms for their energy needs.

Detailed explanation-2: -Photoautotrophs are organisms that carry out photosynthesis. Using energy from sunlight, carbon dioxide and water are converted into organic materials to be used in cellular functions such as biosynthesis and respiration.

Detailed explanation-3: -Plants, algae, and a group of bacteria called cyanobacteria are the only organisms capable of performing photosynthesis (Figure). Because they use light to manufacture their own food, they are called photoautotrophs (literally, “self-feeders using light”).

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: -Green plants and photosynthetic bacteria are examples of photoautotrophs. They are not to be confused with photoheterotrophs, which also make energy from light but cannot use carbon dioxide as their sole source of carbon, and instead use organic materials.