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adaptation
the way an organism adapts to an environment
TERM 2
mutation
DEFINITION 2
a change of sequence in DNA
TERM 3
DNA
DEFINITION 3
deoxyribonucleic acid2 strands of nucletides4 bases
TERM 4
nucleic acid
DEFINITION 4
subunit: nucleotidesfunction/role: store and transport genetic
informationexamples: dna and rna
TERM 5
lipid
DEFINITION 5
subunit: fatty acidfunction/role: primary component of the
cell membrane; help long-term memoryexample:
phospolipids, fats and oils, waxes- found in basically all foods
carbohydrates
subunit: monosacarridesfunction/role: provide structure in
the plant cell; help short term memoryexamples: glucose,
found in cell wall, pastas, breads
TERM 7
protein
DEFINITION 7
subunit: amino acidsfunction/role: provide structure, serve as
enzymes in the cell membraneexamples: enzymes (lactose)
basically anything made of dairy: nuts, beans
TERM 8
rna
DEFINITION 8
ribonucleic acidt is replaced with u
TERM 9
abiotic
DEFINITION 9
all non-living organisms in an ecosystem
TERM 10
biotic
DEFINITION 10
all living organisms in an ecosystem
predation
(+,-) relationship. the predator benefits while the prey is
negatively affected
TERM 17
mitochondria
DEFINITION 17
site of cell respiration
TERM 18
cell membrane
DEFINITION 18
controls what goes in and out of a cell
TERM 19
nucleus
DEFINITION 19
control center of the cell
TERM 20
meiosis
DEFINITION 20
makes gametes; produces 4 individual cells, each having 1
set of chromosomes different from their parents (this is due
to crossing over)
mitosis
replaces dead, damaged, or lost cells. produces 2 cells that
are identical, each has 2 sets of chromosomes
TERM 22
eukaryote
DEFINITION 22
more complex celllarge in sizemany membrane bound
organelles with specific functionshas a nucleus: contains
DNAex: plants, fungi, animals
TERM 23
prokaryote
DEFINITION 23
simple cellssmall in sizehas no membrane bound
organellesno nucleus: dna free floats in the cytoplasmex:
bacteria
TERM 24
fossil
DEFINITION 24
transitional species: species which show the transition from
one distinct form to another
TERM 25
gamete
DEFINITION 25
egg and sperm cells
ribosome
site of protein synthesis
TERM 32
vestigial structure
DEFINITION 32
those that exist in modern organisms but no longer have a
valid modern use
TERM 33
analogous structure
DEFINITION 33
those that are functionally similiar (have the same use) but
structurally are very different
TERM 34
homologous structure
DEFINITION 34
those that are similar in form but not in function
TERM 35
food web
DEFINITION 35
combination of multiple food chains
cohesion
water sticking to other water molecules
TERM 37
adhesion
DEFINITION 37
water molecules stick to other polar molecules due to the
opposing charges generated by the atoms involvedwater
molecules will not stick to non-polar molecules such as fats,
oils, and waxes because nonpolar materials do not have any
areas of diverging charge
TERM 38
surface tension
DEFINITION 38
where water meets air at the surface, the molecules tend to
collect together in slightly tighter packed groups, this creates
a thickened film on the water surface
TERM 39
capillary action
DEFINITION 39
derived from adhesion- primary means by which trees are
able to bring water from their roots to their leaves
TERM 40
heat capacity
DEFINITION 40
water absorbs a lot of heat before changing temperature
