Which one of the following accurately describes the reactions within photosynthesis?
a. the light-independent reactions are responsible for making atp and nadph.
b. the light-dependent reactions are responsible for making sugars.
c. the light-independent reactions use atp and nadph.
d. the light-independent reactions use the sunlight to drive its processes.

a. The light-independent reactions are responsible for making ATP and NADPH.

There are several starting ingredients that are required for starting the process of photosynthesis. The most important are sunlight, water, carbon dioxide and certain minerals. Sunlight helps in building up the optimum temperature that is required to start the process of photosynthesis. Water is an important raw material that helps to absorb the carbon dioxide from the air. It also directly influences the opening and closing of the stomata. Carbon dioxide on the other hand is one of the most important raw material that helps to make glucose via the process of photosynthesis.