What is the process by which plants produce food using chlorophyll, carbon dioxide, and sunlight?

• Respiration

• Photosynthesis

• Fermentation

• Oxidation

What is the significance of photosynthesis?

• Produces energy for plants

• All of the above

• Produces oxygen for animals

• Enables formation of food chain

Which phase of photosynthesis involves the absorption of light by chlorophylls?

• Production of ATP

• Carbon fixation

• Absorption of light

• Transfer of electron

What is the chemical equation for the process of photosynthesis?

• 6CO2 + 6H2O → C6H12O6 + 6O2

• C6H12O6 + 6O2 → 6CO2 + 6H2O

• 6CO2 + 6O2 → C6H12O6 + 6H2O

• C6H12O6 + 6H2O → 6CO2 + 6O2

Where do the light reactions occur in the process of photosynthesis?

• Stroma

• Thylakoid

• Chloroplast

• Cytoplasm

What is the first thing that happens in photosystem 2 during the light reaction?

• Hydrogen ions are pumped into the thylakoid space

• Electrons become energized

• Chlorophyll reaction center absorbs light

• Water is split

What is the main purpose of the ATP synthase in the light reaction?

• To produce ATP from ADP

• To release energy for dark reactions

• To pump hydrogen ions into the stroma

• To create a hydrogen ion gradient

What are the products of the light reactions in photosynthesis?

• Chlorophyll and sunlight

• Carbon dioxide and water

• Glucose and oxygen

• ATP and NADPH

What is the final step of the light reaction in photosynthesis?

• Hydrogen ions flow through ATP synthase to produce ATP

• Water is split to replace the electrons in photosystem 2

• Electrons from photosystem 1 move down the second electron transport chain

• Energized electrons and a hydrogen molecule reduce NADP to NADPH

What happens during the process of carbon fixation in photosynthesis?

• Carbon dioxide gets attached to rubisco in the chloroplast

• Carbon dioxide is released into the atmosphere

• Carbon dioxide is used to produce ATP

• Carbon dioxide is converted into glucose