Carbon/Nitrogen Cycle Review

Nitrogen is found in which of the following:

• Fats

  (lipids)

• Nucleic Acids

  (DNA + RNA)

• Proteins

• Carbohydrates

  (Sugar + Starch)

Carbon Dioxide (CO₂) is released in which of the following processes?

• photosynthesis

• decomposition

• combustion

• cellular respiration

Animals get the carbon they need by

• Nitrogen fixation

• photosynthesis

• cellular respiration

• ingestion of plants and animals

In the carbon cycle, the only process that removes CO2 from the atmosphere is

• combustion

• cellular respiration

• decomposition

• photosynthesis

Tags

NGSS.MS-LS1-6

The main way nitrogen is removed from the atmosphere and changed into a form plants can use is

• Nitrogen Fixation

• Nitrification

• Ammonification

• Denitrification

Tags

NGSS.MS-LS2-3

Each process in the nitrogen cycle is carried out by

• bacteria

• mice

• cows

• plants

Tags

NGSS.MS-LS2-3

Ammonification is the process by which decomposers convert wastes and dead organisms into ____.

• ammonium

  NH₄⁺

• Nitrate

  NO₃^-

• Nitrite

  NO₂^-

• nitrogen gas

  N₂

Tags

NGSS.MS-LS2-3

Denitrification is the process by which bacteria

• Make ammonium

  NH₄⁺

• Create Nitrate

  NO₃^-

• Create Nitrite

  NO₂^-

• Return nitrogen gas to the air

  N₂

Tags

NGSS.MS-LS2-3

Biogeochemical Cycles are important because

• matter in an ecosystem is finite and must be recycled

• living things need Nitrogen, Carbon, and Phosphorus to make the building blocks of cells

• they aren't important and it is a waste of time learning about them

• If matter didn't cycle, organisms would eventually run out of materials to build new cells

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following are true of biogeochemical cycles?

• They ensure that nutrients are used only once by organisms.

• The create new materials to replace lost ones.

• They increase the total amount of matter over time.

• They can be affected by human activity.

Tags

NGSS.HS-ESS2-6

NGSS.HS-LS2-3

NGSS.HS-LS2-4