AP Biology Nutrient Cycles

What is this a picture of?

• Nitrogen cycle
• carbon cycle
• water cycle
• plant cycle

How does N₂ get into soil?

• N₂ diffuses into the pore spaces between the soil particles

• Legumes pull it in.

• gravity. It's not just a good idea, it's the Law.

• 1st Law of Thermodynamics

How does carbon dioxide leave the atmosphere?

• Through transpiration
• Through photosynthesis
• Through factory emission
• Sunlight

Which process takes Carbon Dioxide from the air and converts it into a form of carbon used by living things?

• Precipitation
• Photosynthesis
• Respiration
• Bioremdiation

Cellular respiration is the process by which ____________ is consumed and _______________ is produced.

• Carbon, Oxygen

• Oxygen, Carbon dioxide

• H20, oxygen

• Carbon, H2O

A particular golf course is using large amounts of nitrogen fertilizer. What process could move this nitrogen into a local stream?

• volatilization
• nitrogen fixation
• runoff
• ammonification

Growing legumes such as alfalfa or soy beans increases

• denitrification
• nitrogen fixation
• ammonification
• ammonium oxidation

Organisms use nitrogen to form

• carbohydrates and lipids
• proteins and lipids
• lipids and nucleic acids
• proteins and nucleic acids

The nitrogen cycle is a biogeochemical cycle because it moves ?

• only between living things (biosphere)

• only in the soil (geosphere)

• between living things, the soil, and air

• only in the air (atmosphere)

Which is NOT a process of the water cycle?

• precipitation
• freezing
• transpiration
• evaporation