Vocabulary A9: Cycles of Nutrients

Plants absorb and store some of the energy in sunlight through a process called …

• Cellular respiration

• Photosynthesis

• Carbon Cycle

• Decomposer

The ______________ is the cellular organelle that converts glucose into ATP, a chemical form of energy the cell can use.

• Chloroplast

• Chlorophyll

• Mitochondria

• Nucleus

The process in which water vapor is released into the air through the stoma on the leaves of plants is called __________.

• Evaporation

• Transpiration

• Precipitation

• Condensation

Plants rely heavily on ____ in the nitrogen cycle to incorporate nitrogen into organic compounds

• bacteria
• viruses
• fungi
• oxygen

Which of the following cycles lacks a gas phase? This means that the element does not exist in a gas phase.

• carbon

• nitrogen

• phosphorous

• none of the above

When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.

• Water
• Atmosphere
• Sun
• Air

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

• Combustion
• Photosynthesis
• Decomposition
• Nitrogen Fixation

What are the two products of photosynthesis?

• Oxygen and Carbon Dioxide
• Oxygen and Sugar
  

• Sunlight and Sugar

Which organisms are found on every level of the energy pyramid?

• Producers

• Consumers

• Decomposers

• Herbivores

The food web shows

• many possible interactions and feeding relationships beween the organsims in the ecosystem

• a nice picture of what lives in the ecosystem

• the symbiotic relationships

• the keystone species