Photosynthesis and Cellular Respiration Concepts

Which three components do plants combine during photosynthesis?

• Glucose, oxygen, and soil.

• Sunlight, carbon dioxide, and water.

• Cellulose, starch, and sucrose.

• Nitrogen, phosphorus, and potassium.

What is the primary function of chlorophyll in plant cells?

• To transport water throughout the plant.

• To capture light energy from the sun.

• To break down glucose into energy.

• To release carbon dioxide into the atmosphere.

What is the main goal of photosynthesis for plants?

• To produce oxygen for humans to breathe.

• To create food for the plant to grow and survive.

• To absorb excess carbon dioxide from the atmosphere.

• To generate heat to keep the plant warm.

What is the primary role of photosynthesis in the ecosystem?

• To release oxygen into the atmosphere

• To convert solar energy into a usable form for living organisms

• To break down food for cellular respiration

• To produce water for plant hydration

Which organelle is responsible for cellular respiration and is often called the "powerhouse of the cell"?

• Chloroplast

• Nucleus

• Mitochondria

• Vacuole

How does the efficiency of ATP production compare between aerobic and anaerobic respiration from one glucose molecule?

• Aerobic respiration produces significantly more ATP.

• Anaerobic respiration produces significantly more ATP.

• Both processes produce the same amount of ATP.

• Neither process produces ATP.

Why are biofuels considered a more environmentally friendly energy source compared to fossil fuels?

• Biofuels do not release any carbon dioxide when burned.

• The carbon dioxide released by biofuels was recently absorbed from the atmosphere by plants.

• Biofuels are easier to extract from the ground than fossil fuels.

• Biofuels produce more energy per unit than fossil fuels.