EOC Review Biological Processes

SI Units Length = meter Mass = kilograms Time = seconds Temperature = C Area = meters2 Volume=liter Density=kg/m3

SI Prefixes Remember: King Henry Died Upon Drinking Chocolate Milk. K = kilo (1,000) H = hecto (100) D = deka (10) U = unit (1) = meters, liters, grams D = deci (0.1) C = centi (0.01) M = milli (0.001)

Metric Conversions If you remember the phrase and then list the first letter of each word, then you can quickly convert any number from one unit to the next. For example, how many mL are in 3.5 kL? K H D O D C M 3.5 ? Move the decimal the number of spaces between the letters and in the direction the arrow points. 3.5 35 350 3500 35000 350000 3500000 Therefore, there are 3,500,000 mL in 3.5 kL.

Criteria for Being Considered Alive Cells: one cell (unicellular) or more than one cell (multicellular) Need for Energy: for metabolism (build up or break down materials via chemical processes) Response to the Environment: React to environment in order to survive. Ex. Light: lots of light, your pupils contract, you raise your hand to block the light, or put on sunglasses. Plants grow toward light. Reproduction and Development: must be able to pass genes on to offspring. Controlled by DNA and RNA.

Levels of Organization Smallest to Largest Subatomic particles – proton, neutron, electron Atom Molecule – Ex. H2O, CO2, C6H12O6 Organelle – ribosome, nucleus, ER, Golgi complex Cell – prokaryotic (bacteria; no nucleus; no membrane bound organelles) vs. eukaryotic (plant and animal) Tissue Organ Organ System Organism Population – organisms of same species in same place at same time Community – different populations in an area Ecosystem – living (biotic) and nonliving (abiotic) Biome – tundra, coniferous forest, temperate deciduous forest Biosphere – part of Earth that contains life