Oxygen Cycle Quiz

What is the process by which plants use sunlight to convert carbon dioxide and water into oxygen and glucose?

• Respiration

• Transpiration

• Photosynthesis

• Fermentation

What is the process by which animals and plants release energy from glucose and produce carbon dioxide and water as byproducts?

• Digestion

• Cellular respiration

• Fermentation

• Photosynthesis

Which gas is taken in by plants during photosynthesis and released during respiration?

• Nitrogen

• Oxygen

• Hydrogen

• Carbon dioxide

What type of organisms are the primary producers of oxygen through photosynthesis?

• Animals and fungi

• Viruses and archaea

• Plants, algae, and some types of bacteria

• Mosses and lichens

Which type of organisms rely on oxygen for respiration?

• Anaerobic organisms

• Photosynthetic organisms

• Hibernating organisms

• Aerobic organisms

What is the main source of oxygen in the Earth's atmosphere?

• Burning fossil fuels

• Plants and algae

• Animal respiration

• Volcanic eruptions

During which process do plants absorb carbon dioxide from the atmosphere?

• Fermentation

• Transpiration

• Photosynthesis

• Respiration

Which part of the plant is responsible for the majority of photosynthesis?

• Roots

• Flowers

• Stem

• Leaves

What is the waste product of photosynthesis?

• nitrogen

• oxygen

• carbon dioxide

• glucose

What is the process by which animals take in oxygen and release carbon dioxide?

• Photosynthesis

• Respiration

• Circulation

• Digestion