food webs
what is a heterotroph
organism that must eat food to obtain energy
rain, sleet, snow
precipitation
study of the flow and transformation of energy
thermodynamics
all the chemical reactions in a cell
metabolism
what type of organisms are found at the bottom of a food web/chain
producers
each step in the food chain/web is called a -__
trophic level
water leaving the surface of lakes and entering the atmosphere
evaporation
what is the first law of thermodynamics
what is ATP?
cell energy
give an example of a detritovore
earthworm
amount of energy transferred between trophic levels
10%
how does carbon enter the atmosphere
burning fossil fuels, dying organisms, respiration
what is the second law of thermodynamics
entropy (disorder) increases
this is due to most of the energy being used up and dissipated as heat
define catbolic and give an example
break down large molecules into smaller ones
cellular respiration
what is the process in which water seeps into the ground
percolation
total mass of living matter at each trophic level is referred to as -___
biomass
because of the water and carbon cycles cycles organisms can use ____ over and over again
what is formed from cellular respiration (must get all 3)
CO2
H2O
energy (ATP)
define anabolic and give an example
build large molecules from smaller ones
photosynthesis
the bond between the second and third phosphate group is broken
why is the top of the energy pyramid smaller than the bottom of the pyramid
because energy is lost as it moves through trophic levels
water evaporating off the surface of leaves
transpiration
what are the products of photosynthesis (must get both)
O2
Sugar
what is ATP made up of
adenosine
3 phosphates
ribose (sugar)
what does ATP stand for? yes you must say it correctly
adenosine triphosphate