Compare and contrast the events of the light reaction with the events of the dark reaction?

Light and dark reaction are the two different phases of photosynthesis.

Photosynthesis is a process of formation of food in green plants and algae using carbon dioxide and water in the presence of sunlight.

Light reaction ( light dependent phase) occurs in the thylakoid membrane of chloroplast and is the first phase of photosynthesis.

During this phase,  chlorophyll ( a green pigment in the chloroplast) absorbs energy from sunlight and converts it into chemical energy in the form of ATP and NADPH. Photolysis of water takes place in this reaction that produces oxygen as a waste product in the surrounding.

Dark reaction occurs in the stroma. During the dark reaction ( light independent phase) , this chemical energy is used in the formation of carbohydrates ( glucose) as ATP provides energy for this process wheres NADPH is a reducing agent, which gives electrons that are need for CO2 fixation so as to form glucose molecule.

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.