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Intro to Bio 101
Exam 1
106
Biology
Undergraduate 1
09/27/2012

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Term
Bio
Definition
Study of life
Term
What is life (7)
Definition
ORder, reporduction, Growth, development, Engery process, Respsonse to enviroment, Regulation evolutinary process
Term
Order
Definition
cell is basic sturctural functional unit of life
Term
reproduction
Definition
organisms produce their own kind
Term
energy process
Definition
use of chemical enegery to power an organisms own activity
Term
growth and developement
Definition
controlled by dna
Term
repsond to the enviroment
Definition
how it responds to the enviroment
Term
regualtion
Definition
how it regulates internal enviroment
Term
evolutionary adaptions
Definition
over generations traits best suited for the enviroment
Term
two types of cells
Definition
Prokaryotic and eukaryotic
Term
prokaryotic
Definition
1st to evolve, dont have a nucleus
Term
eukarytoic
Definition
have nuclues and other membrane organelles
Term
evolution-core theme
Definition
unity of life is based on DNA & a common gentic code
Term
3 Domains
Definition
Bacteria, Anchera Eukarya
Term
Eukarya
Definition
Protistis fungi animalia plantera
Term
Natural Selection
Definition
Traits are passed on to the offspring, population produces more offspring than the enviroment can support
Term
Inductive reasonings
Definition
generalization are based on a large number of specificed observations
Term
Deuctive reasoning
Definition
specific results predicted froma gneral premis
Term
Evolution and humans
Definition
Medicine agriculture forensics
Term
matter
Definition
anything that takes up space, mass, broken down into elements
Term
elements
Definition
a substance that cannot be broken down to any other substance
Term
trace elements
Definition
require very small quanties
Term
compound
Definition
substance consisting of 2 or more elements
Term
emergent propoerties
Definition
compand has characteristics that are different from innical elements
Term
atomic #
Definition
# of protons in an element
Term
mass #
Definition
# both protons and neutrons
Term
atomic mass
Definition
total mass of the atom
Term
isotopes
Definition
of the serval forms of an element each with the same # of protons but differnt # of neutrons
Term
Radioactive isotopes
Definition
nucleus decays spontatanously giving off particles of enegery
Term
electron shells
Definition
an enegery level representing the distance of an electron and its nucleus
Term
enegery
Definition
abililty to cause change
Term
potiential enegery
Definition
engery that matter posesses do to its location of structure
Term
covalent bonds
Definition
2 atoms share one or more electrons
Term
electronicgavity
Definition
electrons are shared equally between atoms
Term
nonpolor covlanent bond
Definition
electrons are shared equally between atoms
Term
polar covalent bonds
Definition
electrons are shared unequally between atoms
Term
ions
Definition
atoms or molecules that has electronical charge from gaining or losing a electrons
Term
Ionic bonds
Definition
chemcial bonds resulting form attraction between oppositly charge ions-- Weak bonds
Term
salt
Definition
resulting from the formation of ionic bonds
Term
hydrogen bonds
Definition
Weak bonds, Polar covalent bonds with electromagtic atoms have a partical charge can be attracted to partically - atoms
Term
chemical reactions
Definition
making/breaking of chemical bonds leading to the changes in chemical matter
Term
reactants
Definition
starting materical
Term
products
Definition
ending material
Term
cohension
Definition
strickling together of molecules of some kind
Term
adhension
Definition
attraction between differnt kinds of molecules
Term
surface tention
Definition
measure of how difficult it is to strach or break
Term
solution
Definition
liquids consisting of a uniform mixture of 2 or more substances
Term
solvent
Definition
dissolving agent
Term
solute
Definition
the dissolved substance
Term
aqueous solution
Definition
solvent is water
Term
Polysacchardies
Definition
polymers of monosacchents function as storage or stuctural compounds
Term
starch
Definition
storage polysachords in plants made from glucose
Term
glycosgen
Definition
storage of polysachords in animals, much more highly branched
Term
cellulose
Definition
major component of plant cell walls compuse of glucose
Term
chitlin
Definition
structural polysacchorides that is used to build insect ekoskelton
Term
Unsaturated fatty acids
Definition
has one or more double bonds & not soild at room temperature, typical for plants
Term
saturdated fatty acids
Definition
hour max number of hydrogens & soild at room tempueratere, aniamls
Term
trans fats
Definition
can be caused by hydrogen, Veggie oils
Term
Function of fats
Definition
long term storage of enegry, good for cushing vital organs, insulates our bodies
Term
phospholipids
Definition
contains two FA's attached to glyceiol, 3rd carbon attached to phosphyate group
Term
Cholestrol
Definition
compoent of animal cell membranes, helps maintain fludity of membranes, starting material for their sex chromosomes
Term
Protiens
Definition
aka amino acids, carbon attached to amino group
Term
Poly peptide
Definition
a chain of amino acids linked together by a covalent bond
Term
Peptide bond
Definition
covalent bond that holds together amino acids
Term
Primary stucture of protiens
Definition
unique sequence of stucture
Term
2nd Stucture
Definition
alphapheilex beta plated sheets that maintained by h-bonds between hyrdrogen and oxygens long polypete chain
Term
Teritary structure
Definition
overall 3 dimensional structure, R groups with hydrogen, covalent, or ionic bonds
Term
protein denaturation
Definition
process in which proteins unravel (heat, ph, Salts)
Term
Nucleic acids
Definition
DNA, Rna
Term
monomers
Definition
called nucleotides composed of sugar bound to phosphate group of nitrogenous base
Term
DNA nucleotides bases:
Definition
Adenine, Thymine, Guanine, Cytosin
Term
Polymer
Definition
RNA-Single Strandes, DNA- doube strands
Term
cell theory
Definition
all living things are made up of cells, cells are very small, all cells come from other cells
Term
plasma membrane
Definition
Function-boundary layer between living cell & its surrounding
Structure-composed of phospholid belayer
Term
P cells vs E cells
Definition
No necleus Necleus
no organelles ORGANELLES
smaller, 1st Bigger, evolved later
Term
animal vs plant
Definition
Tend to be circular Cell wall
lysomes Choloroplasts
centriolies large central vacuale
Term
Nucleus
Definition
function- houses DNA
structure- enclosed by a double membrane that has nuclear pores
Term
nucleolus
Definition
prominet structure of necleus site of ribosomal RNA synthesis site of ribosome assembly
Term
Ribosome
Definition
function-carries out proteins systhese
structure- consists of ribosomal proteins & ribosomal RNA membrane bound
Term
free ribosome
Definition
suspended in cytoplasm
produce proteins function in protain
Term
band ribosome
Definition
attached to endoplasmic nuclear enevlope
make protiens that get interested to membrane
Term
smooth er
Definition
produce lipids
function-have enzymes that process drugs, alchol, harmfull stuff
structure- extensive network of flattened soes and tublues lack ribosomes
Term
Rough Er
Definition
function-produces protiens that are incorporated into ER membrane then transported to other organelles
structure- extensive network of flattned sac with ribosomes attached
Term
Golgi apparatus function
Definition
molecular warehouse and fishing factory. ER products are modified as they are transported through golgi
Term
Golgi apparatus structure
Definition
Recieve- receives transport vessicles from Er
Ship- when done vesciles bud off opposite end and are transported to other sides
Term
Lysomes
Definition
function- involved in digestion, can fuse with feeing vacule to digest food in protist
structure- membrane i a sac that has digestive enzanyes
Term
vacuoles
Definition
function- stores food/water and can have digestive function
structure- large membranous sac
Term
Perooxisomes
Definition
function-breaks down fatty acids into celluar fuel
structure- membrane organelle
Term
Mitochondria
Definition
function-cellular respiration convert food into chemical energey of ATp
Structure-double membrane structure
Term
Chloroplasts
Definition
function-photosthesis
structure- has inner/outter membrane
Term
stroma
Definition
think fluid in inner membrane, cotains chloroplast DNA, RIm, Enzy
Term
Thyakoid
Definition
series of inner connceted sacs
Term
Granum
Definition
stacks of thyakoids
Term
Endosymbiosis
Definition
a cell that lives within another cell
Term
Endoosymbiant theory
Definition
mito and cholropasts were formally prokaryotes that begain living in larger cells
Term
Cytoskeleton
Definition
function-provides cell support
stucture- network of protein fibers
Term
microfilaments
Definition
support cell shape, involved in muscle contraction
Term
Intermediate fillaments
Definition
reinforce cell shape, ancher organelles
Term
microtubules
Definition
involved in organelle meovent, part of locomotion appendayes
Term
Extracellular Matrix of animals cells
Definition
function- suports PM, holds tissues together provides protection
structure- composed of glyproteins
Term
cell junctions in animal tissues
Definition
function- to adhare, interact and comm among neighboring cells
Term
tight junctions
Definition
form seals to prevent fluid leakage
Term
anachoring junctions
Definition
fasten cells together
Term
gap junctions
Definition
allow movement of small molecules to flow between cells
Term
cell walls
Definition
function- protect cells and help plants stay upright
structure- cellulose that is embedded in polyschanides and proteins
Term
plasmadesmata
Definition
channels in plant cell walls
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