BIOLOGY 101 COMPREHENSIVE EXAM UPDATED
QUESTIONS AND ANSWERS GUARANTEE A+
✔✔evolutionary adaptation - ✔✔must be able to adapt to their environment
✔✔how organisms are organized - ✔✔atom
molecule
organelle
cell
tissues
organ
organ system
organism
population
community
ecosystem
biosphere
✔✔atom - ✔✔basic building block of the universe or matter
✔✔molecule - ✔✔made up of 2 or more atoms covalently bonded together
✔✔organelle - ✔✔membrane-bound structure within cell
-has specific functions
✔✔cell - ✔✔basic building block of life
✔✔tissues - ✔✔groups of cells with similar function
✔✔organ - ✔✔different tissues w/in a structure unit, w/similar function
✔✔organ system - ✔✔different organs that work together for a specific function
✔✔organism - ✔✔individual living thing
✔✔population - ✔✔individuals of the same species living in the same place
✔✔community - ✔✔different populations living in the same space
✔✔ecosystem - ✔✔communities + their abiotic habitat
✔✔biosphere - ✔✔all the ecosystems
✔✔producers - ✔✔organisms which create biomass (organic material)
, -plants provide the food
✔✔consumers - ✔✔organism eat plants/other animals
✔✔decomposers - ✔✔organisms which recycle nutrients
-complex matter --> simpler mineral nutrients
✔✔**matter - ✔✔Anything that has mass and takes up space
✔✔element - ✔✔pure substance that contains only oNE type of atom
-specific properties
-cannot be broken down into another substance
✔✔protons - ✔✔subatomic particles with a positive charge
✔✔neutrons - ✔✔subatomic particles with no charge (neutral)
✔✔electrons - ✔✔subatomic particles with a negative charge
✔✔nucleus (chem) - ✔✔center of atom
-where protons and neutrons hang out
✔✔atomic number - ✔✔number of protons
-how we define atoms
✔✔atomic mass - ✔✔mass of protons+ mass of neutrons
✔✔ion - ✔✔an atom that has an electric charge
-has an unequal amount of p+ and e-
✔✔isotope - ✔✔a different type of a particular element
-p+ is the same but number of neutrons is different
✔✔radioactive isotope - ✔✔an unstable isotope
-decays at a known rate
-breaks down into other elements
✔✔valence shell - ✔✔last electron shell of an atom
-determines chemical properties
✔✔chemical bond - ✔✔attractions that hold atoms together
-covalent and ionic
✔✔covalent bonds - ✔✔when atoms share electrons to fill valence shells
QUESTIONS AND ANSWERS GUARANTEE A+
✔✔evolutionary adaptation - ✔✔must be able to adapt to their environment
✔✔how organisms are organized - ✔✔atom
molecule
organelle
cell
tissues
organ
organ system
organism
population
community
ecosystem
biosphere
✔✔atom - ✔✔basic building block of the universe or matter
✔✔molecule - ✔✔made up of 2 or more atoms covalently bonded together
✔✔organelle - ✔✔membrane-bound structure within cell
-has specific functions
✔✔cell - ✔✔basic building block of life
✔✔tissues - ✔✔groups of cells with similar function
✔✔organ - ✔✔different tissues w/in a structure unit, w/similar function
✔✔organ system - ✔✔different organs that work together for a specific function
✔✔organism - ✔✔individual living thing
✔✔population - ✔✔individuals of the same species living in the same place
✔✔community - ✔✔different populations living in the same space
✔✔ecosystem - ✔✔communities + their abiotic habitat
✔✔biosphere - ✔✔all the ecosystems
✔✔producers - ✔✔organisms which create biomass (organic material)
, -plants provide the food
✔✔consumers - ✔✔organism eat plants/other animals
✔✔decomposers - ✔✔organisms which recycle nutrients
-complex matter --> simpler mineral nutrients
✔✔**matter - ✔✔Anything that has mass and takes up space
✔✔element - ✔✔pure substance that contains only oNE type of atom
-specific properties
-cannot be broken down into another substance
✔✔protons - ✔✔subatomic particles with a positive charge
✔✔neutrons - ✔✔subatomic particles with no charge (neutral)
✔✔electrons - ✔✔subatomic particles with a negative charge
✔✔nucleus (chem) - ✔✔center of atom
-where protons and neutrons hang out
✔✔atomic number - ✔✔number of protons
-how we define atoms
✔✔atomic mass - ✔✔mass of protons+ mass of neutrons
✔✔ion - ✔✔an atom that has an electric charge
-has an unequal amount of p+ and e-
✔✔isotope - ✔✔a different type of a particular element
-p+ is the same but number of neutrons is different
✔✔radioactive isotope - ✔✔an unstable isotope
-decays at a known rate
-breaks down into other elements
✔✔valence shell - ✔✔last electron shell of an atom
-determines chemical properties
✔✔chemical bond - ✔✔attractions that hold atoms together
-covalent and ionic
✔✔covalent bonds - ✔✔when atoms share electrons to fill valence shells
