AP BIOLOGY

Detailed explanation-1: -Plants use a process called photosynthesis to make food. During photosynthesis, plants trap light energy with their leaves. Plants use the energy of the sun to change water and carbon dioxide into a sugar called glucose. Glucose is used by plants for energy and to make other substances like cellulose and starch.

Detailed explanation-2: -Stage II is called the Calvin cycle. This stage combines carbon from carbon dioxide in the air and uses the chemical energy in ATP and NADPH to make glucose.

Detailed explanation-3: -Glucose is converted into starch by the process called polymerization. In polymerization, several simple and soluble molecules of glucose are put together to form a complex, insoluble molecule of starch. Polymerization is similar to constructing a large building out of the same type of small blocks.

Detailed explanation-4: -Cellular respiration converts oxygen and glucose into water and carbon dioxide.

Detailed explanation-5: -In photosynthesis, glucose is produced in plants. Glucose is immediately soluble and canot get stored but starch is insoluble. Thus it is converted into starch so that it cannot escape from the cells.