Biogeochemical Cycles Lesson

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

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-LS2-1

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.MS-ESS2-1

NGSS.MS-ESS3-4

NGSS.MS-LS2-3

Which of the following is an example of how biogeochemical cycles are important in sustaining life?

• The atoms of water molecules are destroyed during a drought.

• Oxygen atoms are converted into carbon during cellular respiration.

• Nitrogen in wastes are converted into useable nutrients for other organisms.

• New carbon atoms are created during the carbon cycle.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Decomposition is found during which of the following cycles? Choose all the apply.

• Phosphorus

  Cycle

• Carbon

  Cycle

• Nitrogen

  Cycle

• Water Cycle

Tags

NGSS.MS-LS2-3

The Phosphorus cycle is important because phosphorus is contained in

• sugars

• DNA

• proteins

• starches

Tags

NGSS.MS-LS2-3

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

• combustion

• cellular respiration

• decomposition

• photosynthesis

Tags

NGSS.MS-LS1-6

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

NGSS.MS-LS2-4

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.HS-LS2-6