23-24 Photosynthesis 1

What is the chemical equation for photosynthesis?

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

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

• C6H12O6 + 6O2 → 6CO2 + 6H2O

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

What is the role of sunlight in photosynthesis?

• It provides the energy needed for the reaction.

• It absorbs carbon dioxide from the atmosphere.

• It helps in the formation of glucose directly.

• It cools the plant to prevent overheating.

Why is photosynthesis important for life on Earth?

• It produces oxygen and organic compounds that are essential for life.

• It helps in the formation of fossil fuels.

• It increases the temperature of the Earth.

• It is the primary source of energy for all animals.

What pigment is primarily responsible for absorbing light in plants?

• Chlorophyll

• Carotene

• Xanthophyll

• Melanin

What are the reactants of photosynthesis?

• Oxygen and Glucose

• Carbon Dioxide and H2O

• Nitrogen and H2O

• Carbon Monoxide and Glucose

Which color has the shortest wavelength?

• Red

• Green

• Violet

• Blue

What is the main sugar produced during photosynthesis?

• Fructose

• Sucrose

• Glucose

• Lactose

In which part of the plant does photosynthesis primarily occur?

• In the roots, specifically in the root hairs.

• In the stems, particularly in the vascular tissue.

• In the leaves, specifically in the chloroplasts.

• In the flowers, mainly in the petals.

What gas do plants release during photosynthesis?

• Carbon Dioxide (CO2)

• Nitrogen (N2)

• Oxygen (O2)

• Methane (CH4)

What organelle is responsible for making food in a plant cell?

• Mitochondria

• Chloroplast

• Ribosome

• Nucleus