MikeBiology
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- entropy is..
- the measure of energy transfer
- second law of thermodynamics
- in all energy conversions the potential law of the final state will always be less than the initial state
- a natural byproduct of thermodynamics
- entropy
- living organisms behave according to the first two laws of
- thermodynamics
- the first law of thermodynamics is...
- energy can change forms but it can never be created or destroyed
- the science that deals with energy conversions
- thermodynamics
- the first microscope was invented where? and when?
- middlesburg holland 1595
- who disproved spontaneous generation once and for all?
- Pasteur
- the hadean is...
- the period when life didnt exist on earth
- two possible sources of life
- extraterrestrial or terrestrial
- when scientists studied the martian meteorite they found...
- water, simple carbon containing molecules, and magnetite crystals
- the experiment set up int he 1950s bu Urey and Miller simulated
- the primordial soup
- what provides the best environment for monomers to bond?
- mineral surfaces
- all organisms share these traits
- all have similar organic compounds, all proteins made up of the same amino acids,all carry genetic code in nucleic acids
- who first disproved spontaneous generation?
- Francisco Reidi
- had the most sophisticated early views of lifes origins
- aristotle
- first to ponder a natural origin of life...
- anaximander
- spontaneous generation
- life arose spontanteously..creationist does not fall within the framework of science because its not falsifiable
- viruses..
- straddle the definition of life, require a host to replicate,are little more than nucleic acids and a protein coat
- the largest type of macromolecule found in all living things
- protein
- the smallest type of macromolecule found in all living things
- lipid
- molecules are classified as macromolecules when they weigh...
- over 1000 daltons
- macromolecule means
- giant polymers
- polymers are formed by...
- covalent bonds of smaller units called monomers
- this isnt listed in most texts...
- its alive if its part of an interconnecting nature web
- four major types of molecules that characterize living things...
- proteins, carbs, lipids, nucleic acids
- responds to stimuli
- leads to patterns of responses
- growth and deveolpment
- instructions encoded in DNA
- metabolism
- taking energy from the environment and turning it into another form
- why sponch?
- because there small atoms so they form stable molecules, there very naturally abundant,easily form covalent bonds because they all need to gain electrons
- homeostatic
- the organism maintains a stable set of chemical checks and balances
- It is alive if it is...
- highly organized and composed of 1 or more cells
- these 6 elements are shared amongst virtually all living things making up 98% of their mass
- SPONCH: sulfur, phosphorous, oxygen, nitrogen, carbon, hydrogen
- water has a ____ strength
- cohesive
- the surface of water is difficult to puncture because it has a relatively high....
- surface tension
- it takes a great deal of____ to ____ water
- heat vaporize
- the heat of vaporization is the...
- the amount of heat needed to change a substance from its liquid to its gaseous state
- specific heat is...
- the number of calories needed to raise one gram of a substance 1 degree C
- an____is not always necessary for polymers to turn into cells
- energy source
- a type of polymer with lifelike qualities is called..
- protobiont
- sidney w fox did what in miami...
- create a protobiont
- what are microspheres?
- membrane bound protobionts that can carry out chemical reactions like living cells
- the stage of chemical evolution is the least well understood
- microsphers to cells
- the most highly ordered dissemblages of life on earth
- cells
- who and when was it revealed that life was all due to cells
- schleiden schwann 1830s