The Cycles of Matter Answers

What is a biogeochemical cycle?

The ✔ watercarbonnitrogenphosphorus cycle is not a nutrient cycle.

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carbon✔ nitrogenphosphorus Most abundant gas in the atmosphere; plants absorb it from bacteria in the soil

✔ carbonnitrogenphosphorus In every living thing; plants utilize it when they perform photosynthesis

A cell✔ nutrientenzymetissue

A serves as a long-term storage area for water or nutrients.

Which of the following is a reservoir for carbon and nitrogen, but not phosphorus?

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✔ condensationevaporationprecipitationtranspiration

Bacteria in the soil converts this nutrient into a usable form. Plants take up the usable nutrient through the soil and assimilate it into proteins, making it part of the plant. An animal eats the plants, and the nutrient becomes part of the animal. When the animal dies, it decomposes, returning the nutrient back to the soil. Which cycle is being described?

denitrificationnitrogen fixation✔ nitrification

water✔ carbonnitrogenphosphorous

yes✔ no

Fossil fuels are normally stored in a reservoir deep in the Earth. The carbon in fossil fuels, including coal and oil, are essentially locked out of the natural carbon cycle due to their location deep in the Earth. Humans have found a way to access and utilize this carbon. Identify a risk for accessing this carbon.

condensationevaporation✔ precipitationtranspiration

✔ denitrification nitrogen fixationnitrification

watercarbonnitrogen✔ phosphorous

yes✔ no

Identify the nutrients described below. carbonnitrogen✔ phosphorus A key component in the formation of organic compounds, such as nucleic acids and ATP