Cycling of Matter

______is the essential component of proteins, fats, and carbohydrates, which make up all organisms.

• Nitrogen

• Carbon

• Water

• Phosphorus

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NGSS.HS-LS1-6

Which processes release carbon dioxide into the atmosphere? Check all the apply.

• volcanic eruption

• cellular respiration

• burning of fossil fuels

• decomposing organic matter

• photosynthesis

Which statements are correct?

• Plants consume carbon dioxide and release oxygen.

• Animals consume oxygen and release carbon dioxide.

• Animals consume carbon dioxide and release oxygen.

• Plants consume oxygen and release carbon dioxide.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

How do plants affect the carbon cycle? By taking in

• oxygen molecules and use it to burn glucose during cellular respiration.

• carbon dioxide and use the carbon to build carbohydrates during photosynthesis.

• carbohydrates and pass along to other organisms through food webs.

• water and sunlight and release carbon dioxide back to the atmosphere.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

When a living organism dies, the four organic molecules(which are made of primarily of carbon) are stored and formed as

• minerals

• fossil fuels

• carbon

• carbon dioxide

Tags

NGSS.MS-ESS2-1

How do humans affect the carbon cycle?

• by cutting trees

• over flowing population

• burning fossil fuels

• by mining fossil fuels

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NGSS.MS-ESS3-3

NGSS.MS-ESS3-4

How do humans affect the carbon cycle?

• by burning fossil fuels that increases CO2 levels in the atmosphere

• mining of fossil fuels that deform the landforms and increases CO2 level

• planting the same crop (monoculture) that dried up the soil that increases CO2 level in the atmosphere

• by clearing forests (deforestation) that increases CO2 levels in the atmosphere

Tags

NGSS.MS-ESS3-4

Which two main biological processes that are involved in the carbon cycle, and how?

• deforestation decreases CO2 and increases O2 in the atmosphere

• During photosynthesis, plants consume carbon dioxide to produce glucose and releases oxygen back to the atmosphere.

• During respiration, animals take in oxygen while burning glucose to produce ATP energy and releases carbon dioxide back to the atmosphere.

• Burning of fossil fuels caused increased in CO2 levels that lead to global warming.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Nitrogen makes 78% of the gases in the atmosphere. Which statement is TRUE?

• All organisms can directly use nitrogen gas from the atmosphere.

• All organisms need nitrogen to build proteins.

• Plants get nitrogen by eating animals and other plants.

• Animals get nitrogen by inhaling directly from the air.

Nitrogen-fixing bacteria altered the nitrogen

• for animals to use to build proteins

• for plants to eat to build nutrients

• by converting into ammonia as nutrients in soil for plants to make organic molecules such as proteins, DNA and RNA

Tags

NGSS.MS-LS2-3