23-24 Photosynthesis 1

What is the role of sunlight in photosynthesis?

• It provides the energy needed for the reaction.

• It absorbs carbon dioxide from the atmosphere.

• It releases oxygen as a byproduct.

• It converts water into glucose.

Which color has the shortest wavelength?

• Red

• Green

• Violet

• Blue

What pigment is primarily responsible for absorbing light in plants?

• Carotene

• Xanthophyll

• Chlorophyll

• Anthocyanin

What gas do plants release during photosynthesis?

• Carbon Dioxide (CO2)

• Oxygen (O2)

• Nitrogen (N2)

• Hydrogen (H2)

What are the reactants of photosynthesis?

• Oxygen and Glucose

• Carbon Dioxide and H2O

• Nitrogen and Glucose

• Hydrogen and Oxygen

What is the chemical equation for photosynthesis?

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

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

• C6H12O6 + 6O2 → 6CO2 + 6H2O

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

What factors can affect the rate of photosynthesis?

• Light intensity, carbon dioxide concentration, and temperature.

• Soil pH, humidity, and wind speed.

• Nutrient availability, soil type, and rainfall.

• Plant species, root depth, and leaf size.

What is the main sugar produced during photosynthesis?

• Fructose

• Sucrose

• Glucose

• Galactose

Which condition would NOT increase photosynthesis?

• More sunlight

• More carbon dioxide

• More oxygen

• Higher temperature

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

• Mitochondria

• Chloroplast

• Ribosome

• Endoplasmic Reticulum