Photosynthesis

What is photosynthesis?

• Photosynthesis is the process of converting metals into glucose

• Photosynthesis is the process of converting heat into chemical energy

• Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy stored in glucose molecules.

• Photosynthesis is the process of converting sound waves into energy

Which organelle in plant cells is responsible for photosynthesis?

• Chloroplasts

• Mitochondria

• Endoplasmic reticulum

• Nucleus

What are the two main stages of photosynthesis?

• Stroma and Thylakoid membrane

• Dark reactions and Krebs cycle

• Photosystem I and Photosystem II

• Light reactions and Calvin cycle

What are the reactants of photosynthesis?

• chlorophyll and sunlight

• sugar and oxygen

• carbon dioxide and water

• oxygen and nitrogen

What are the products of photosynthesis?

• Carbon dioxide and water

• Glucose and oxygen

• Protein and lipids

• Starch and nitrogen

What is the role of chlorophyll in photosynthesis?

• Chlorophyll releases oxygen

• Chlorophyll provides structural support to plants

• Chlorophyll absorbs light energy

• Chlorophyll converts carbon dioxide into glucose

How does light intensity affect the rate of photosynthesis?

• Light intensity affects the rate of photosynthesis by initially increasing it until a saturation point is reached.

• Light intensity has no effect on the rate of photosynthesis

• Increasing light intensity decreases the rate of photosynthesis

• Photosynthesis rate is directly proportional to light intensity

What is the equation for photosynthesis?

• H2O + CO2 + light energy -> C6H12O6 + O2

• C6H12O6 + 6O2 -> 6CO2 + 6H2O + light energy

• 6CO2 + 6H2O -> C6H12O6 + 6O2

• 6CO2 + 6H2O + light energy -> C6H12O6 + 6O2

What is the importance of photosynthesis for life on Earth?

• Photosynthesis is only important for plants, not other organisms.

• Photosynthesis depletes oxygen levels and harms ecosystems.

• Photosynthesis is a man-made process with no natural significance.

• Photosynthesis produces oxygen and synthesizes nutrients essential for life.

How do plants obtain the carbon dioxide needed for photosynthesis?

• From the soil

• Through stomata on their leaves

• Through their roots

• By absorbing it through their stems