Chapter 3 Flashcards
(25 cards)
Living things in the enviroment
Biosphere
Anything that occupies space and has mass
Matter
Earth’s crust
Lithosphere
Water on earth in all forma
Hydrosphere
Gases separating earth from outer space
Atmosphere
Six key elements required to live
Carbon, hydrogen, oxygen, nitrogen, phosphorous, sulfur
Chemical compounds making up tissue of living things
Organic compounds
The ability to move matter
Energy
Energy in action or motion
Kenetic energy
Energy in storage
Potantial energy
Energy contained in chemicals
Chemical energy
First law of thermodynamics
Matter is neither created nor destroyed
Second law of thermodynamics
In any energy transfer some energy is always lost
A measure of the degree of the disorder in a system
Entropy
Protiens that promote the breaking down of chemical bonds
Enzymes
The burning of organic compounds
Oxidation
The use of glucose and oxygen to get cardon dioxide and water and energy
Cell respiration
Modified cellular respiration that results in ethyl alchohol
Fermentation
Loss of energy from each trophic level
90%
Pathways of transfer of chemicals (carbon, nitrogen, and phosphorus cycle)
Biogeochemical changes
78% of nitrogen in the atmosphere, it can’t react because it is in the form of N2
Nonreactive nitrogen
Nitrogen that can react
Reactive nitrogen
Process in which microbes with no oxygen available use nitrate instead, which releases nitrogen in the atmosphere
Denitrification
Displacement of oxygen by nitrogen, causing death
Nitrogen cascade
