Photosynthesis: How Plants Convert Sunlight into Energy

Photosynthesis is a vital chemical reaction that uses sunlight to convert carbon dioxide and water into glucose and oxygen. This process occurs in the chloroplasts of plant leaves, which act as solar-powered food factories. Water is absorbed through roots, and carbon dioxide enters through stomata. Chlorophyll captures sunlight to drive the reaction, producing glucose for plant growth and oxygen as a byproduct. Photosynthesis is crucial for plant growth and sustains the global food chain by providing energy for all life forms. It also maintains our life-sustaining atmosphere by consuming carbon dioxide and releasing oxygen.

What are the basic ingredients required for photosynthesis?

• Nitrogen, water, and sunlight

• Oxygen, water, and sunlight

• Carbon dioxide, water, and sunlight

• Glucose, water, and sunlight

How does water reach the leaves of a plant?

• Via chloroplasts

• Through root hair cells and xylem

• Via the phloem

• Through the stomata

What is the role of chlorophyll in photosynthesis?

• It releases oxygen

• It traps energy from sunlight

• It stores glucose

• It absorbs carbon dioxide

What is the main byproduct of photosynthesis that is essential for life?

• Glucose

• Nitrogen

• Oxygen

• Carbon dioxide

Why is photosynthesis considered a crucial chemical reaction for life on Earth?

• It sustains the global food chain and atmosphere

• It creates glucose for animal consumption

• It generates energy for the sun

• It produces nitrogen for the atmosphere