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 pigment is primarily responsible for photosynthesis in plants?

Back

Chlorophyll is the pigment primarily responsible for photosynthesis, as it absorbs light energy.

Front

Why do most plants appear green?

Back

Most plants appear green because chlorophyll reflects green light.

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 the main product of photosynthesis?

Back

The main products of photosynthesis are glucose and oxygen.

Front

What is the role of sunlight in photosynthesis?

Back

Sunlight provides the energy needed to drive the chemical reactions that convert carbon dioxide and water into glucose and oxygen.

Front

What is the difference between autotrophs and heterotrophs?

Back

Autotrophs are organisms that produce their own food (e.g., plants), while heterotrophs are organisms that consume other organisms for food (e.g., animals).

Front

What is ATP and why is it important in photosynthesis?

Back

ATP (adenosine triphosphate) is the energy currency of the cell, providing energy for various cellular processes, including those in photosynthesis.

Front

What is the chemical equation for photosynthesis?

Back

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

Front

What are light-dependent reactions?

Back

Light-dependent reactions are the first stage of photosynthesis, occurring in the thylakoid membranes, where sunlight is converted into chemical energy (ATP and NADPH).