photosynthesis

Front

What is photosynthesis?

Back

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

Front

What are the main products of photosynthesis?

Back

The main products of photosynthesis are glucose (a sugar) and oxygen.

Front

What role do chlorophyll play in photosynthesis?

Back

Chlorophyll is a green pigment found in plants that absorbs light energy, primarily from the blue and red wavelengths, and reflects green light.

Front

What are stomata?

Back

Stomata are small openings on the surface of leaves that allow for gas exchange, enabling carbon dioxide to enter and oxygen to exit.

Front

What is the light-dependent stage of photosynthesis?

Back

The light-dependent stage is the first part of photosynthesis where sunlight is captured and used to produce ATP and NADPH, and oxygen is released as a byproduct.

Front

What is the light-independent stage (Calvin Cycle)?

Back

The light-independent stage, also known as the Calvin Cycle, is the second part of photosynthesis where ATP and NADPH are used to convert carbon dioxide into glucose.

Front

Why do plants need carbon dioxide?

Back

Plants need carbon dioxide for photosynthesis, as it is one of the raw materials used to produce glucose.

Front

What is the role of water in photosynthesis?

Back

Water provides electrons and protons for the light-dependent reactions and is split to release oxygen as a byproduct.

Front

What happens to photosynthesis in the absence of sunlight?

Back

In the absence of sunlight, photosynthesis cannot occur because light energy is essential for the process.

Front

What is the significance of oxygen in photosynthesis?

Back

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