AP BIOLOGY

Detailed explanation-1: -Autotrophs that perform chemosynthesis do not use energy from the sun to produce food. Instead, they make food using energy from chemical reactions, often combining hydrogen sulfide or methane with oxygen.

Detailed explanation-2: -Autotrophs are capable of manufacturing their own food by photosynthesis or by chemosynthesis. Thus, they may be classified into two major groups: Photoautotrophs. Chemoautotrophs.

Detailed explanation-3: -Chemosynthetic autotrophs are creatures that can synthesise their energy by the oxidation of inorganic chemicals such as sulphur nitrates, nitrites, and other similar compounds. The energy released through synthesis, during the oxidation step, is used to synthesise ATP molecules once more.

Detailed explanation-4: -Autotrophs rely on either light or chemical energy to turn CO2 into organic carbon molecules. Photoautotrophs are photosynthesizing organisms such as algae and higher plants that use light for this process.

Detailed explanation-5: -Autotrophs have the ability to make their own food by the process of photosynthesis. Autotrophs are also known as producers. They obtain carbon dioxide from the atmosphere through the stomata.