S2S5 Photosynthesis Review

What do plants use the glucose created during photosynthesis for?

• For energy, growth, and structure.

• For photosynthesis only.

• To produce oxygen.

• For reproduction.

What is the glucose produced in photosynthesis used for?

• For energy and as a building block for growth.

• For storing water in the plant.

• For attracting pollinators to the flowers.

• For producing oxygen during respiration.

What does photosynthesis create for animals?

• Carbohydrates (sugars) for energy and growth

• Carbon dioxide for respiration

• Nitrogen for protein synthesis

• Water for hydration

Why is photosynthesis important for the ecosystem?

• It produces carbon dioxide which is essential for respiration.

• It produces oxygen and organic compounds that are the basis of the food chain.

• It helps in the formation of fossil fuels.

• It increases the temperature of the environment.

What is the overall equation for photosynthesis?

• 6CO2 + 12H2O + light energy → C6H12O6 + 6O2 + 6H2O

• 6CO2 + 6H2O + light energy → C6H12O6 + 6O2

• C6H12O6 + 6O2 → 6CO2 + 12H2O + light energy

• 6O2 + 6H2O + light energy → 6CO2 + C6H12O6

From where do plants get the energy they need for photosynthesis?

• From sunlight

• From soil nutrients

• From water

• From carbon dioxide

What happens to the oxygen produced during photosynthesis?

• The oxygen is released into the atmosphere for animals to breathe.

• The oxygen is used by plants for respiration.

• The oxygen is converted into glucose for energy.

• The oxygen is stored in the soil for later use.

What are the reactants and conditions needed for photosynthesis?

• water & carbon dioxide (reactants), sunlight (condition)

• oxygen & glucose (reactants), heat (condition)

• nitrogen & hydrogen (reactants), darkness (condition)

• sugar & water (reactants), artificial light (condition)

What is the role of carbon dioxide in photosynthesis?

• It is a waste product of photosynthesis.

• It provides carbon atoms and some oxygen atoms for glucose production.

• It absorbs sunlight for energy conversion.

• It helps in the respiration process of plants.

What type of energy is changed into chemical energy during photosynthesis?

• Thermal energy

• Light energy

• Mechanical energy

• Nuclear energy