Photosynthesis

By Ms. Perry

Photosynthesis Is

Photosynthesis is the process that plants use to make food. They take in carbon dioxide, water, and sunlight and then convert it into glucose and oxygen. The equation for photosynthesis is 6H2O + 6CO2 + sunlight -> C6H12O6 + 6O2.

The Carbon Dioxide and Oxygen Cycle

The carbon dioxide and oxygen cycle is very important to plants and animals alike. During photosynthesis, the plants produce oxygen that is then released into the environment. Animals breathe in the oxygen and through cell respiration produce carbon dioxide. This cycle repeats continuously. Without plants and photosynthesis, we would not have oxygen to breathe.

The Reactions of Photosyntheis

Light Dependent Reactions

In the light dependent reaction, sunlight, water, ADP, and NADP+ enter the reaction. Oxygen, NADPH, and ADP exit the reaction.

Calvin Cycle

In the Calvin cycle, which is also referred to as the light independent reactions, carbon dioxide enters the reaction for the outside environment. ATP and NADPH enter from the light dependent reaction. Glucose, ADP, and NADP+ exit the reaction.

Why Do We Need Photosynthesis

Photosynthesis is a process that is required for animals to live. This process produces oxygen for animals, as well as food for plants, which as a result provide food for other organisms.

The Chloropast

The chloroplast is the part of the plant in which photosynthesis occurs. It has an inner and an outer membrane. It has thylakoids that are contained in the stroma. There are also granum, or stacks of thylakoids.

The inner and outer membranes are used to protect the inside of the chloroplast. The stroma is the fluid like substance inside the chloroplast. It is where the reaction of the Calvin cycle take place. The thylakoids are the location for the reactions of the light dependent reactions.

Chloroplasts need a raise!

Chloroplasts need a raise because without them there would be no food or oxygen for animals to live.

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