Nitrogen Cycle Review

What converts nitrogen gas into a usable form for plants and animals?

• bacteria

• rain

• fungi

• car exhaust

Tags

NGSS.MS-LS2-3

Which of the following describes the role of nitrogen-fixing bacteria in the nitrogen cycle? Nitrogen-fixing bacteria convert

• nitrates intro nitrogen gas
• ammonia into proteins
• nitrogen gas into ammonia
• proteins into nitrates

Tags

NGSS.MS-LS2-3

According to this diagram, plants absorb

• nitrates

• nitrogen fixing bacteria

• animals

• decomposers

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Both plants and animals use nitrogen to make _________ and __________

• nitrates and lightning

• proteins and nucleic acids

• water and air

• gas and liquids

Legumes are

• Plants that have bacteria in their roots that can put nitrogen into the soil

• Plants that do not need nitrogen in the soil to survive

• Plants with extra leafs

• Plants that can fix broken nitrogen molecules

The process in which nitrogen circulates and is recycled is called

• The nitrogen cycle

• The carbon cycle

• The water cycle

• The phosphorus cycle

Tags

NGSS.MS-ESS2-1

NGSS.MS-LS2-3

Bacteria fix nitrogen from the atmosphere into a form plants can use.

• True

• False

Tags

NGSS.MS-LS2-3

The 3 ways of nitrogen fixation are

• Soil, Oxygen, and Carbon

• Carbon, Oxygen, and Photosynthesis

• Lightening, Fungi, and Nitrogen-Fixing Bacteria

• Fungi, Nitrogen-Fixing Bacteria, and Photosynthesis

Nitrogen-fixing bacteria turns nitrogen gas (N₂) into

• Nitrite (NO₂)

• Ammonia (NH₃)

• Nitrate (NO₃)

• Water (H₂O)

Nitrifying bacteria can make

• Ammonia and Nitrite

• Nitrite and Nitrogen Gas

• Oxygen and Nitrate

• Nitrate and Nitrite