organism correct answers a life-form, a living entity made up of one or more cells, there is no simple definition, 5 common fundamental characteristics
cells correct answers membrane-bound units, the fundamental unit of an organism
replication correct answers an important characteristic of an...
Bio 150: Chapters 1-3 || WELL-ENLIGHTENED.
organism correct answers a life-form, a living entity made up of one or more cells, there is no
simple definition, 5 common fundamental characteristics
cells correct answers membrane-bound units, the fundamental unit of an organism
replication correct answers an important characteristic of an organism, includes replicating
oneself
information correct answers a characteristic of an organism that includes the ability to
process hereditary or genetic information, responding to the environment and adjusting to
conditions, etc.
evolution correct answers organisms are the "products" of this and their populations continue
to do this today
energy correct answers organisms need to have this in order to stay alive and reproduce, they
must both acquire and use this
3 of the greatest unifying ideas in all of science correct answers the cell theory, the theory of
evolution, the chromosome theory of inheritance
cell theory basics correct answers all organisms are made of cells and all cells come from
preexisting cells
chromosome theory of inheritance correct answers inside cells, hereditary or genetic
information is encoded in genes, the units located on chromosomes
central dogma correct answers describes the flow of information in cells
chemical evolution correct answers inputs of energy led to the formation of increasingly
complex carbon-containing substances, culminating in a molecule that could replicate itself
what four types of atoms make up 96% of all matter found in organisms? correct answers
hydrogen, carbon, nitrogen, oxygen
structure affects....? correct answers function
atomic number correct answers number of protons
atomic mass/mass number correct answers number of protons + neutrons
isotopes correct answers forms of an element with different numbers of neutrons
atomic weight correct answers an average of all the masses of the naturally occurring isotopes
based on their abundance
orbitals correct answers contain electrons, located around the nucleus
, electron shells correct answers levels of orbitals
valence shell correct answers outermost shell of each element
valence electrons correct answers the electrons found in the valence shell
an atom is most stable when its valence shell is...? correct answers filled
chemical bonds correct answers attractions that bind atoms together
covalent bond correct answers a strong attraction where two atoms share electrons
molecules correct answers substances held together by covalent bonds
compounds correct answers atoms of different elements are bonded together
electronegativity correct answers when atoms of different elements form a bond, they may
pull shared electrons toward their nuclei with varying strengths
what is responsible for an atom's electronegativity correct answers the number of protons in
the nucleus and the distance between the nucleus and the valence shell
nonpolar covalent bond correct answers a bond that involves equally shared electrons
polar covalent bond correct answers asymmetric sharing of electrons
ionic bonds correct answers electrons are completely transferred from one atom to the other,
the electron transfer occurs because it gives the resulting atoms a full valence shell
ion correct answers an atom or molecule that carries a full charge, rather than the partial
charges that arise from polar covalent bonds
cation correct answers positive ion (plussy cat)
anion correct answers negative ion
solvent correct answers an agent for dissolving
solution correct answers a liquid containing one or more dissolved solids or gases in a
homegeneous mixture
solutes correct answers any substance that is dissolved in a solvent
is water polar or nonpolar? correct answers polar
hydrogen bond correct answers an attraction between a hydrogen atom with a partial positive
charge and another atom, usually oxygen or nitrogen, with a partial negative charge
hydrophillic correct answers water-loving
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