AP Bio Insta-Review Topic 3.5: Photosynthesis

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose, using carbon dioxide and water.

Front

Where did photosynthesis originate?

Back

Photosynthesis originated in cyanobacteria.

Front

What is the primary function of the Calvin Cycle?

Back

The primary function of the Calvin Cycle is to synthesize G3P (glyceraldehyde-3-phosphate) from carbon dioxide.

Front

What is G3P?

Back

G3P (glyceraldehyde-3-phosphate) is a three-carbon sugar produced in the Calvin Cycle, which can be used to form glucose and other carbohydrates.

Front

Where does the Calvin Cycle take place?

Back

The Calvin Cycle takes place in the stroma of chloroplasts.

Front

What are the light reactions of photosynthesis?

Back

The light reactions are the first stage of photosynthesis, occurring in the thylakoid membranes, where light energy is converted into chemical energy (ATP and NADPH) and oxygen is released.

Front

What is the role of chlorophyll in photosynthesis?

Back

Chlorophyll is a pigment found in chloroplasts that absorbs light energy, primarily in the blue and red wavelengths, and plays a crucial role in the light reactions.

Front

What is the significance of oxygen production in photosynthesis?

Back

Oxygen produced during photosynthesis is a byproduct that is essential for the survival of aerobic organisms, including humans.

Front

What is the equation for photosynthesis?

Back

The overall equation for photosynthesis is: 6CO2 + 6H2O + light energy → C6H12O6 + 6O2.

Front

What is the difference between the light reactions and the Calvin Cycle?

Back

The light reactions convert light energy into chemical energy (ATP and NADPH) and occur in the thylakoids, while the Calvin Cycle uses ATP and NADPH to convert CO2 into glucose and occurs in the stroma.