NEET BIOLOGY

Detailed explanation-1: -Chemosynthesis is the process by which food (glucose) is made by bacteria using chemicals as the energy source, rather than sunlight. Chemosynthesis occurs around hydrothermal vents and methane seeps in the deep sea where sunlight is absent.

Detailed explanation-2: -Most energy is initially derived from sunlight via plant photosynthesis. Chemosynthesis is usually found in places that are high in methane and low in oxygen, where bacteria can use these conditions to make energy.

Detailed explanation-3: -Chemosynthesis is the synthesis of organic compounds by bacteria or other living organisms using energy derived from reactions involving inorganic chemicals, typically in the absence of sunlight.

Detailed explanation-4: -Some organisms that rely on chemosynthesis to derive the energy they need include nitrifying bacteria, sulfur-oxidizing bacteria, sulfur-reducing bacteria, iron-oxidizing bacteria, halobacterium, bacillus, clostridium, and vibrio, among others.

Detailed explanation-5: -Chemosynthetic bacteria are organisms that use inorganic molecules as an energy source to produce food. There are two types of this bacteria: chemoautotrophs and chemoheterotrophs. Chemoautotrophs are organisms that utilize chemical reactions to synthesize compounds from carbon dioxide.