4.1 Study Guide Flashcards
Study
Biomass Definition
The amount of organic matter in an organism or organism group.
Energy Transfer Definition
Each time something eats something else, food energy is transferred from one organism to another.
Biomass Pyramid Definition
The representation of total living biomass or organic matter present at different trophic levels in an ecosystem.
Productivity Pyramid Definition
Shows the production or turnover ( the rate at which energy or mass is transferred from one trophic level to another).
Productivity Definition
Productivity is the rate at which energy is added to the bodies of a group of organisms (such as primary producers) in the form of biomass.
Energy Pyramid Definition
A model that shows the flow of energy from one trophic, or feeding, level to the next in an ecosystem.
When going up on a biomass pyramid what happens?
The biomass gets smaller.
Formula for biomass
M = aD^b
Show the model for energy transfer.
Sun-Photosynthesis- Producers- Productivity- GPP- NPP
l l l
Carbon- Chemosynthesis Respiration Replication- Heat
l l
Trophic Levels Consumers-Consumers- Consumers- Heat
l
Ecological Pyramid- Efficiency
During Photosynthesis, energy is converted to energy.
During Photosynthesis, light energy is converted to chemical energy.
Cellular Respiration Formula
Glucose + oxygen -> CO2 + H2O + energy
As cells undergo cellular respiration, what products are produced, and how are they released from the body.
CO@ is released when an organism breaths, energy through heat, and H2O through urine, saliva, pores ECT…
What is one way to measure energy in living things?
biomass
What is the rule that says on average only 10% of energy level is available for the next level.
The 10% rule.
Is the 10% rule always accurate.
It is sometimes accurate.
