Primary Productivity & Decomposition

Front

What process do producers (autotrophs) use to convert carbon dioxide and water into glucose and oxygen?

Back

Photosynthesis

Front

Through photosynthesis, producers use solar energy to convert carbon dioxide and water into _______ and oxygen.

Back

glucose

Front

What does primary productivity refer to?

Back

The rate at which biomass is produced by organisms that convert inorganic substrates into complex organic substances.

Front

Fill in the blank: NPP = GPP - ____.

Back

R (where R is the respiration)

Front

Gross Primary Productivity is the rate at which ______ occurs.

Back

photosynthesis

Front

Some fraction of energy from Gross Primary Productivity is used for ______ and homeostasis.

Back

cellular respiration

Front

Net Primary Productivity (NPP)

Back

Energy captured by producers minus the energy used (respired).

Front

Net Primary Productivity refers to the remaining _______ energy.

Back

stored

Front

What percentage of available solar energy do producers usually capture?

Back

1%

Front

Fill in the blank: It is not a very efficient process and most solar energy returns as ______ to the atmosphere.

Back

heat