Energy and Matter in Ecosystems Quiz

What is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll?

• Fermentation

• Photosynthesis

• Respiration

• Hydrolysis

What is the term for the breakdown of dead organic matter by bacteria and fungi?

• construction

• decomposition

• accumulation

• preservation

Which cycle involves the movement of nitrogen between the atmosphere, soil, and living organisms?

• Nitrogen cycle

• Carbon cycle

• Water cycle

• Oxygen cycle

Which cycle involves the movement of carbon between the atmosphere, oceans, soil, and living organisms?

• Carbon cycle

• Oxygen cycle

• Water cycle

• Nitrogen cycle

Which cycle involves the movement of water between the atmosphere, land, and living organisms?

• Rock cycle

• Carbon cycle

• Nitrogen cycle

• Water cycle

What is the primary pigment involved in photosynthesis?

• melanin

• hemoglobin

• chlorophyll

• keratin

What are the end products of photosynthesis?

• Carbon dioxide and water

• Nitrogen and hydrogen

• Methane and sulfur dioxide

• Glucose and oxygen

What is the role of nitrogen-fixing bacteria in the nitrogen cycle?

• Convert atmospheric nitrogen into a form that plants can use

• Convert atmospheric nitrogen into a form that animals can use

• Convert water into a form that bacteria can use

• Convert carbon dioxide into a form that plants can use

How does deforestation impact the carbon cycle?

• It increases atmospheric carbon levels

• It decreases atmospheric carbon levels

• It has no impact on atmospheric carbon levels

• It reduces carbon emissions