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

What are chloroplasts?

Back

Chloroplasts are specialized organelles found in plant cells that are responsible for photosynthesis, containing chlorophyll which captures light energy.

Front

Why do leaves appear green?

Back

Leaves appear green because they contain chlorophyll, a pigment that absorbs light most efficiently in the blue and red wavelengths, reflecting green light.

Front

What is the role of chlorophyll in photosynthesis?

Back

Chlorophyll absorbs light energy, which is used to convert carbon dioxide and water into glucose and oxygen during photosynthesis.

Front

What are autotrophs?

Back

Autotrophs are organisms that can produce their own food from inorganic substances, typically through photosynthesis (e.g., plants).

Front

What are heterotrophs?

Back

Heterotrophs are organisms that cannot produce their own food and must consume other organisms for energy (e.g., animals, fungi).

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

What is produced during the light-dependent reactions?

Back

The light-dependent reactions produce ATP (adenosine triphosphate), NADPH, and oxygen as a byproduct.

Front

What is the main product of the light-independent reactions (Calvin cycle)?

Back

The main product of the light-independent reactions is glucose, which is used by the plant for energy and growth.

Front

What is the equation for photosynthesis?

Back

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