AP BIOLOGY

Detailed explanation-1: -Carbon dioxide diffuses into the stroma of chloroplasts and combines with a five-carbon sugar, ribulose1, 5-biphosphate (RuBP). The enzyme that catalyzes this reaction is referred to as RuBisCo, a large molecule that may be the most abundant organic molecule on the Earth.

Detailed explanation-2: -Using the energy carriers formed in the first stage of photosynthesis, the Calvin cycle reactions fix CO2 from the environment to build carbohydrate molecules. An enzyme, RuBisCO, catalyzes the fixation reaction, by combining CO2 with RuBP.

Detailed explanation-3: -Atmospheric CO2 is combined with RuBP to form a 6 carbon compound, with the help of an enzyme (biological catalyst) called RuBisCo. The enzyme, Rubisco, not only initiates carbon fixation in the Calvin cycle; it also combines with oxygen to initiate photo-respiration.

Detailed explanation-4: -The most common pathway combines one molecule of CO2 with a 5-carbon sugar called ribulose biphosphate (RuBP). The enzyme which catalyzes this reaction (nicknamed RuBisCo) is the most abundant enzyme on earth!

Detailed explanation-5: -RuBP, which stands for ribulose bisphosphate, is a 5-carbon molecule that is involved in the Calvin cycle, which is one of the photosynthesis’s light-independent processes. With the aid of an enzyme called RuBisCO, atmospheric carbon dioxide is coupled with RuBP to generate a 6 carbon molecule.