Photosynthesis - Overview

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

What are the two main stages of photosynthesis?

Back

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

Front

Where do the light reactions of photosynthesis occur?

Back

The light reactions occur in the thylakoid membranes of chloroplasts.

Front

What is the primary function of the light reactions?

Back

The primary function of the light reactions is to convert solar energy into chemical energy in the form of ATP and NADPH.

Front

What is the Calvin cycle?

Back

The Calvin cycle is a series of biochemical reactions that take place in the stroma of chloroplasts, where carbon dioxide is fixed and converted into glucose.

Front

How many ATP molecules are produced in the light reactions?

Back

The number of ATP molecules produced can vary, but typically, several ATP molecules are generated during the light reactions.

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 the light reactions.

Front

What is the significance of NADPH in photosynthesis?

Back

NADPH is an electron carrier that provides the reducing power needed for the Calvin cycle to convert carbon dioxide into glucose.

Front

How many turns of the Calvin cycle are required to produce one G3P molecule?

Back

Three turns of the Calvin cycle are required to produce one G3P molecule.

Front

What is the role of water in photosynthesis?

Back

Water is split during the light reactions to provide electrons, protons, and oxygen; it is essential for the production of ATP and NADPH.