AP Biology Unit 3 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, and releasing oxygen as a byproduct.

Front

What are the two main stages of photosynthesis?

Back

The two main stages of photosynthesis are the light-dependent reactions and the light-independent reactions (Calvin cycle).

Front

Where do the light-dependent reactions occur?

Back

The light-dependent reactions occur in the thylakoid membranes of the chloroplasts.

Front

What is the primary function of the Calvin cycle?

Back

The primary function of the Calvin cycle is to convert carbon dioxide into glucose using ATP and NADPH produced in the light-dependent reactions.

Front

What is G3P and its significance in photosynthesis?

Back

G3P (glyceraldehyde-3-phosphate) is a three-carbon sugar produced in the Calvin cycle; it is a precursor for glucose and other carbohydrates.

Front

How many ATP and NADPH are required to produce one G3P molecule in the Calvin cycle?

Back

To produce one G3P molecule, 9 ATP and 6 NADPH are required.

Front

What is the role of chlorophyll in photosynthesis?

Back

Chlorophyll is a pigment that absorbs light energy, primarily in the blue and red wavelengths, and plays a crucial role in converting light energy into chemical energy.

Front

What is the equation for photosynthesis?

Back

The overall equation for photosynthesis is: @@6CO_2 + 6H_2O + light ightarrow C_6H_{12}O_6 + 6O_2@@.

Front

What are the products of the light-dependent reactions?

Back

The products of the light-dependent reactions are ATP, NADPH, and oxygen (O2).

Front

How many CO2 molecules are needed to make 1 G3P?

Back

3 CO2 molecules are needed to make 1 G3P.