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Biology 1-2 Finals Review
1st Semester
84
Biology
9th Grade
12/16/2009

Additional Biology Flashcards

 


 

Cards

Term
biology
Definition
study of life or living things
Term
atom
Definition
smallest particle of matter and is made of protons, neutrons, and electrons
Term
atomic number
Definition
number of protons
Term
atomic mass
Definition
protons+neutrons
Term
element
Definition
made of only one kind of atom
Term
isotopes
Definition
atoms of the same element with the same atomic number but different atomic masses
Term
molecule
Definition
several atoms bonded
Term
characteristics of life
Definition
reproduction, metabolism, cellular organization, growth and development, response, requires energy
Term
population
Definition
one kind of organism living in the same place
Term
habitat
Definition
a place where the species lives
Term
ecosystem
Definition
made up of biotic and abiotic factors
Term
biotic
Definition
living things
Term
abiotic
Definition
soil, water, weather, energy
Term
density limiting factors
Definition
affect higher populations more often
Term
density independent factors
Definition
impact large and small populations the same
Term
biomes
Definition
major ecosystem of wide areas
Term
desert
Definition
dry, hot conditions
Term
taiga
Definition
evergreens and moose
Term
tundra
Definition
permafrost, caribou, and few trees
Term
deciduous forest
Definition
trees that drop their leaves
Term
grasslands
Definition
grazing animals, few trees, grasses and grains, mostly central U.S
Term
Energy flows... (food chain)
Definition
sun→plants→plant-eaters→animal eaters
Term
hypotonic solutions
Definition
water moves into water and swells
Term
hypertonic solutions
Definition
moves into water and it shrinks
Term
succession
Definition
the changes that occur in an ecosystem over time
Term
example of producer and consumer
Definition
rabbit eating lettuce, eagle eating rabbit, etc.
Term
autotrophs
Definition
plants
Term
food web
Definition
made up of many interconnecting food chains
Term
food chains
Definition
shows what eats what
Term
heterotrophs
Definition
cannot make own food and must absorb energy from other organisms
Term
trophic levels
Definition
shows the flow of energy
Term
energy pyramid
Definition
producers at the bottom, consumers at the top
Term
protein
Definition
chains of amino acid
Term
enzymes
Definition
proteins that speed up reactions
Term
cycles of nature
Definition
include water cycle, nitrogen cycle, and carbon dioxide cycle
Term
water cycle
Definition
precipitation and evaporation
Term
nitrogen cycle
Definition
decay and nitrogen fixing
Term
carbon dioxide cycle
Definition
photosynthesis and respiration
Term
predator/prey
Definition
one eats another
Term
commensalism
Definition
only one benefits
Term
competition
Definition
wanting the same things
Term
mutualism
Definition
both benefit
Term
parasitism
Definition
harms the host
Term
hypothesis
Definition
testable possible explanation of an observation
Term
variable
Definition
the part of the experiment that is changed
Term
control
Definition
the part of an experiment in which everything stays the same
Term
experiment
Definition
planned procedure designed to test a hypothesis
Term
quantitative data
Definition
reported in graphs and charts
Term
qualitative data
Definition
non-numbered data
Term
[image]
Definition
  • title: Dow Jones Industrial Average from 1985 to 2005
  • Y-axis: DJIA
  • X-axis: Years

 

Term
ozone
Definition
prevents UV rays which cause cancer, cataracts, and melanoma
Term
CFCs
Definition
made illegal because they put a hole in the ozone layer
Term
species
Definition
genetically similar organisms that produce fertile offspring like themselves
Term
niche
Definition
includes what, when, and where it eats
Term
community
Definition
group of different organisms living in the same place
Term
dehydration synthesis
Definition
joins molecules by removing water
Term
covalent bonds
Definition
shared electrons between atoms
Term
ionic bonds
Definition
transfer of electrons
Term
organic compounds
Definition
includes carbon, hydrogen, and oxygen
Term
base
Definition
pH above 7 (OH-)
Term
acid
Definition
pH below 7 (H+)
Term
lipids
Definition
fats, cholesterol, and earwax; made of long chains of C-H
Term
saturated fats
Definition
unhealthy and solid
Term
unsaturated fat
Definition
healthier than saturated fat and liquid
Term
exponential growth
Definition
rises rapidly
Term
r-strategists
Definition
reproduce rapidly when condition is ideal
Term
death rate=birth rate?
Definition
no population growth
Term
nucleic acids
Definition
made of nucleotide, ex. DNA, RNA, ATP
Term
carbohydrates
Definition
sugars and starches
Term
carbon-hydrogen bonds
Definition
in carbohydrates and lipids; store energy
Term
animals store carbohydrates as...
Definition
glycogen
Term
plants store carbohydrates as...
Definition
starch
Term
magnification(microscope)
Definition
in the eyepiece
Term
cell
Definition
smallest unit of life
Term
as the surface area to volume ration of a cell decreases...
Definition
the cell increases
Term
cell membrane
Definition
surrounds all cells
Term
osmosis
Definition
diffusion of water through the membrane
Term
active transport
Definition
uses energy
Term
passive transport
Definition
does not use energy
Term
endocytosis
Definition
the cell bringing material in
Term
exocytosis
Definition
the cell taking materials out
Term
ATP
Definition
energy source for all metabolism of the cell
Term
photosynthesis
Definition
converts light energyto chemical using chlorophyll
Term
ultimate energy source
Definition
sun
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