DENDROLOGY

Detailed explanation-1: -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-2: -During the light reactions, the energy from sunlight is stored in energy carrier molecules. These energy carrier molecules are then used to power the reactions of the Calvin cycle, where CO2 molecules are joined together to produce carbohydrates such as glucose.

Detailed explanation-3: -Plants get carbon dioxide from the air through their leaves. The carbon dioxide diffuses through small holes in the underside of the leaf called stomata. (One of these holes is called a stoma.

Detailed explanation-4: -During photosynthesis, plants convert light energy into chemical energy that is used to build molecules of glucose.