Unit 1 Review Life Science

What are the 3 reactants of photosynthesis? The reactants are the things needed for photosynthesis to occur.

• oxygen, glucose, sunlight

• sunlight, oxygen, water

• water, oxygen, carbon dioxide

• carbon dioxide, sunlight, water

What are the 2 products of photosynthesis? The products are the things made in the process of photosynthesis.

• water, sunlight

• glucose, carbon dioxide

• oxygen, glucose

• sunlight, oxygen

What is the main purpose of photosynthesis?

• To make food

• To create energy

• To release oxygen

• To absorb sunlight

Please select who performs cellular respiration: 

• Animals 
• Both animals and plants 
• plants 

Cellular respiration is...

• the process by which cells break down glucose into energy. 
• the process by which cells break light down into energy. 
• the process by which cells communicate with other cells. 

In which way are photosynthesis and cellular respiration different?

• Cellular respiration stores ATP, while photosynthesis releases ATP.
• Cellular respiration produces oxygen, while photosynthesis uses oxygen.
• Photosynthesis releases energy, while cellular respiration stores energy.
• Photosynthesis used carbon dioxide, while cellular respiration produces carbon dioxide.

7. How does a human body get energy?

• Sunlight on the skin produces energy.

• Water provides the majority of energy.

• Food and oxygen combine to deliver energy

• Sleep provides energy stored at night for the next day.

Which process is considered to be a part of the carbon cycle?

• precipitation

• metamorphosis

• condensation

• photosynthesis

Which statement accurately describes an interaction between plants and animals?

• Animals release CO2, required for photosynthesis.

• Animals release O2, required for plant survival.

• Plants provide humans with atmospheric nitrogen.

• Plants provide humans with CO2 for respiration.

What does not produce carbon dioxide?

• Photosynthesis
• Burning Fossil Fuels
• Animal respiration
• Plants decaying