AP BIOLOGY

Detailed explanation-1: -Biological carbon fixation or arbon assimilation is the process by which inorganic carbon (particularly in the form of carbon dioxide) is converted to organic compounds by living organisms. The compounds are then used to store energy and as structure for other biomolecules.

Detailed explanation-2: -(A) Photosynthesis in land plants fixes atmospheric CO2 (inorganic carbon) as organic carbon, which is either stored as plant biomass or in soil, or is decomposed back to CO2 through plant and soil respiration.

Detailed explanation-3: -Answer and Explanation: The microbes convert inorganic compounds into organic compounds with the help of carbon cycle. It initiates the conversion of carbon dioxide and hydrogen sources such as water which are converted into simple sugars and other significant organic molecules.

Detailed explanation-4: -Photosynthesis by land plants, bacteria, and algae converts carbon dioxide or bicarbonate into organic molecules.

Detailed explanation-5: -Carbon fixation is the process wherein photosynthetic organisms (such as plants) turn inorganic carbon into organic compounds (carbohydrates). CO2 fixation, for instance, is a type of carbon fixation wherein carbon dioxide from the atmosphere is converted into carbohydrates.