NPP, Latitude and Photosynthesis Flashcards
What does net primary productivity describe?
The amount of organic material generated in a biome through the process of photosynthesis
What is biomass?
The total weight of living organisms in an area
What is the equation for net primary productivity?
Gross primary productivity - Respiration Rate
What is the equation for gross primary productivity?
Net primary productivity + Respiration Rate
What is gross primary productivity?
The rate at which carbon is captured and stored in living organisms
What are the units that GPP and NPP are measured in?
Grams of carbon per metres squared per year
What is photosynthesis?
The process of converting sunlight and raw material into simple sugars
What is cellular respiration?
The process of breaking sugar into the cell to release energy
What is the equation for photosynthesis?
6CO2 +6H2O + Energy = C6H12O6 + 6O2
Carbon Dioxide, Water and Energy = Glucose and Oxygen
What is the equation for cellular respiration?
C6H12O6 + 6O2 = 6CO2 + 6H2O + Energy
Glucose and Oxygen = Carbon Dioxide, Water and Energy
What is a terrestrial biome?
An area of land with similar climate that includes similar communities of plants and animals
What is the absolute location?
The exact latitudes and longitudes of a certain location
What is the relative location?
The location of a place in relation to another
What is respiration?
The reverse reaction of photosynthesis, which occurs when it is dark
What are the SHEEPT factors that can influence net primary productivity?
Social, Historical, Environmental, Economic, Political and Technological
What is the correlation between NPP and latitude?
The abundance of sunlight and adequate nutrient levels changes based on the latitude of a certain biome, affecting the total amount of NPP able to be produced
What is solar insolation?
The amount of electromagnetic energy or solar radiation incident on the surface of the earth, basically the amount of sunlight shining on us
In each hemisphere, what are the three cells in which air circulates through the entire depth of the troposphere?
Hadley, Ferrel and Polar
What is an autotroph?
A life form that makes its own food from sunlight or chemical compounds, such as grass, plants or trees
What is a Ferrel cell?
The motion of air in the mid-latitudes, characterised by sinking air near 30 degrees and rising air towards the poles
What is a Hadley cell?
A tropical atmospheric circulation which features rising air near the equator
What is a Polar cell?
The smallest and weakest cell, which extends between 60 and 70 degrees north and south to the poles
