R : The Importance of Biochemical Cycles

What is the primary function of biochemical cycles?

• To recycle nutrients in the environment

• To produce energy for organisms

• To create new elements

• To eliminate waste from ecosystems

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following is NOT a biochemical cycle mentioned in the passage?

• Sulfur cycle

• Water cycle

• Carbon cycle

• Phosphorus cycle

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NGSS.MS-LS1-6

What role do bacteria play in the nitrogen cycle?

• They convert nitrogen gas into nitrates and ammonia

• They absorb carbon dioxide during photosynthesis

• They help in the formation of DNA and cell membranes

• They regulate the Earth's climate

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NGSS.MS-LS2-1

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Why is the water cycle vital for life on Earth?

• It provides fresh water to plants and animals

• It absorbs carbon dioxide

• It converts nitrogen gas into usable forms

• It forms DNA and cell membranes

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How does the phosphorus cycle differ from other biochemical cycles?

• It does not have a gaseous phase

• It involves the exchange of carbon

• It regulates the Earth's climate

• It is faster than other cycles