Amoeba Sisters Carbon and Nitrogen Cycles

How nitrogen is "fixed" into useable form for plants

• only through action of bacteria

• only through lightning

• through action of bacteria & lightning

• through photosynthesis

Tags

NGSS.MS-LS2-3

or FALSE?
All of the carbon in existence is continually recycled in the carbon cycle.

• True

• False

Tags

NGSS.MS-ESS2-1

NGSS.MS-LS2-3

How do living organisms return carbon to the atmosphere in the carbon cycle?

• respiration and photosynthesis

•  decomposition and respiration

Organisms that play a role in the nitrogen cycle

• only plants

• only animals

• only bacteria

• plants, animals, & bacteria

When nitrogen gas is turned in to a form that plants and animals can use is called 

• Combustion

• Photosynthesis

• Decomposition

• Nitrogen Fixation

Tags

NGSS.MS-LS2-1

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

• bacteria

• rain

• fungi

• car exhaust

How do animals get the nitrogen they need? (2 right answers)

• From the air they breathe

• From the water they drink

• From the plants they eat

• From the meat they eat

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

What process of the nitrogen cycle occurs in the roots of plants?

• Denitrification

• Nitrogen fixation

• Photosynthesis

• Cellular Respiration

What is the primary role of bacteria in the nitrogen cycle?

• Decomposition of organic matter

• Fixation of nitrogen gas into ammonia

• Conversion of ammonia to nitrate

• Release of nitrogen gas into the atmosphere

Which process in the carbon cycle is responsible for removing carbon dioxide from the atmosphere?

• Respiration

• Photosynthesis

• Combustion

• Decomposition

Tags

NGSS.MS-LS1-6