An H+ ATPase in the membrane pumps H+ into the lysosome, maintaining its lumen at an acidic pH.

TLS Online TPP Program

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#Unit 10. Ecological Principles

Primary productivity The rate at which solar or chemical energy is captured and converted into chemical bonds by photosynthesis or chemosynthesis.

TLS Online TPP Program

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#Unit 10. Ecological Principles

Standing crop, The biomass of producers present in a given area of an ecosystem at a particular moment in time. 

TLS Online TPP Program

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#Unit 10. Ecological Principles

Net primary productivity is commonly measured by harvesting a defined area of an ecosystem at the end of the growing season and determining the accumulated biomass of producers

TLS Online TPP Program

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#Unit 10. Ecological Principles

Remote sensing A technique that measures conditions on Earth from a distant location, typically using satellites or airplanes that take photographs of large areas of the globe. 

Satellite images of ecosystems that show a pattern of high absorption of blue and red light and high reflectance of green light indicate ecosystems with high standing crops of producers.

TLS Online TPP Program

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#Unit 10. Ecological Principles

Succession is affected by the distance that dispersing organisms have to travel from undisturbed mainland areas.

TLS Online TPP Program

#Id: 3049

#Unit 10. Ecological Principles

Number of species of plants on island per year