APES AP Video 1.8

Heterotroph

An organism that cannot make its own food (herbivores depend on plants to get their food)

Autotroph

An organism that makes its own food

Cellular Respiration Equation

C6H12O6+6O2 --> 6CO2+6H2O+ATP

secondary productivity

cellular respiration (primary consumer, heterotroph, herbivore)

Products of Photosynthesis

glucose and oxygen

surplus of photosynthesis to

herbivores

Tropical rainforests in South America and Indonesia (swamps and marshes and estuaries) are most ideal for most net primary productivity because...

most sunlight, precipitation, oxygen from trees

primary productivity

photosynthesis (plants, algae, bacteria --> producers, autotrophs, photosynthesizers)

Glucose

primary product of photosynthesis (C6H12O6)

primary productivity def continued

the rate at which organic material is produced by photosynthetic organisms in an ecosystem

Net Primary Productivity (NPP)

the rate of energy storage by photosynthesizers in a given area, after subtracting the energy lost to respiration

Gross Primary Productivity (GPP)

the total rate of photosynthesis in a given area

Productivity is measured in...

units of energy per unit area per unit time (kcal / m^2 / year)

Reactants of Photosynthesis

water and carbon dioxide