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BVSW FALL STUDY GUIDE BIOLOGY
words to know from first semester vocabulary)
102
Biology
9th Grade
12/08/2010

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Cards

Term
Biosphere
Definition
All parts of the planet inhabited by living things
Term
Ecosystem
Definition
community of living things in an area
Term
Organism
Definition
individual living things
Term
Cells
Definition
Basic unit of living things
Term
Unicellular
Definition
one celled organism
Term
Multicellular
Definition
Living things made of more than one cell
Term
Homeostasis
Definition
internal steady state or balance maintained by an organism
Term
adaptation
Definition
a characteristic that mades an organism better suited to its environment
Term
Observation
Definition
Use of the senses to record data
Term
Qualitative Data
Definition
Data that can be described instead of measured (use of senses)
Term
Quantitative data
Definition
Data that can be measured or counted (ie how many?)
Term
Inference
Definition
logical conclusion based on observation
Term
Hypothesis
Definition
A suggested answer to a well-defined scientific question
Term
Dependent variable
Definition
variable that is being counted or measured
Term
independent variable
Definition
what is being changed or manipulated (ie temperature rising)
Term
controlled experiment
Definition
an experiment that tests the effect of a single variable
Term
Theory
Definition
well tested explanation that makes sense of observations
Term
Empirical
Definition
Data that is based in numbers
Term
Non-empirical
Definition
data that is not based on numbers/amounts
Term
binomial nomenclature
Definition
two part naming system with Genus (capitalized) and species (not cap.)
Term
Dichotomous Key
Definition
Tool for identifying organisms
Term
Taxonomy
Definition
system of naming organisms
Term
Kingdom
Definition
broadest taxonimic category
(top level category)
Term
class
Definition
third level of classification - between Phylumn and Order (K P C O F G S)
Term
Phylumn
Definition
Second Broadest Category of naming things
(K P C O F G S) (king phillip came over for gold specks)
Term
Order
Definition
King Phillip Came OVER (ORDER) for gold specks. (Between Class and Family)
Term
Family
Definition
classification above genus
K P C O F G S
Term
Genus
Definition
capitalized in naming system, above species
Term
Ecology
Definition
Study of organisms and their relationships wtih the environment
Term
biotic
Definition
living parts of environment (ie plants, organisms)
Term
abiotic
Definition
non-living parts of environment(ie sunshine, temperature)
Term
population
Definition
Organisms of one species in one area
Term
community
Definition
organisms inhabiting one specific area
Term
habitat
Definition
where ann organism lives in its environment
Term
climate
Definition
temperature over a long period of time
Term
microclimate
Definition
small scale differences in temperature such as shade/windbreak/snow cover, etc
Term
estuary
Definition
where stream water joins with ocean water
Term
terrestrial
Definition
land based environment
Term
aquatic biome
Definition
water based environment
Term
food web
Definition
complex branching relationships of feeding in an ecosystem - food chains
Term
carrying capacity
Definition
maxinum number of individuals of a species that can be suupported by an environment
Term
biotic potential
Definition
the rate at which the populationw ould produce young if all individuals lived and reproduced at max. capacity
Term
symbiotic relationship
Definition
close interaction between two species where one lives on or in another
Term
mutualism
Definition
both species benefit (ie plants needing fungi on roots to dissolve nitrogen and fungi gets home)
Term
parasitism
Definition
a form of predation - only one benefits
Term
commensalism
Definition
one benefits and the other is neither harmed nor helped. (ie barnacle on whale)
Term
producer
Definition
makes its own food (ie plant)
Term
consumer
Definition
can not make food and feeds off other organsims
Term
herbivore
Definition
eats plants
Term
carnivore
Definition
eats non plants - eats animals, i.e meat
Term
Cell wall
Definition
in plant cells only - around the cell membrane to provide protection and support for the cell
Term
vacuole
Definition
functions in the storage of substances.
Term
ribosomes
Definition
function as the site of protein synthesis
Term
Mitochodrion
Definition
The energy releasing organelle of an animal cell involved in cellular respiration.
Term
Chloroplast
Definition
Functions in photosynthesis
Term
lysosomes
Definition
Aid in digestion of nutrients, molecules and worn cell organelles
Term
Cytoskeleton
Definition
helps the cell to retain and change shape
Term
Hypotonic
Definition

lesser concentration of solutes, higher concentration of solvent than the cell. Cell volume increases.

(Think of a hippo as being large)

Term
Cytokinesis
Definition
Division of parent cell cytoplasm into two daughter cells.
Term
plasma membrane
Definition
boundary of the cell. isolates cell from outside enviroment. Selectively permeable made of a phospholipid by layer.
Term
Main points of cell theory
Definition
The cell is the basic structual unit of life. the cell is the basic functional unit of life. All living things posses at least one cell. Cells come from preexisting cells.
Term
Rough Endoplasmic Reticulum
Definition
Site for ribosome attachment, creates transport proteins
Term
Cytoplasm
Definition
Houses the organelles and cell contents
Term
vessicle
Definition

Membrane bound sac that functions in transport.

(Think of a vehicle)

Term
nucleus
Definition
Produces ribosomes. Contains Chromatin
Term
Golgi apparatus
Definition
recieves transport vesicles. modifies sort and activates proteins. Produces transport vesicles. Produces lysosomes.
Term
eukaryotic cell
Definition
possess a nucleus and membrane bound organelles.
Term
Hypertonic
Definition

Higher concentration of solutes. cell volume decreases

(think of hyper (busy) being smaller people)

Term
Active transport/ passive transport
Definition
Higher concentration of solutes. cell volume decreases
Term
Concentration gradient
Definition
Difference in the concentration of molecules between two locations
Term
osmosis
Definition
diffusion of water across a selectively premeable membrane
Term
isotonic
Definition
solution possessing the SAME concentration of the solutes and solvent as cell
Term
Diffusion
Definition

spontaneous movement of molecules from a high to low concentration. Move down the concentration gradient.

 

Term
Acid
Definition
Compound that contains H+ ions and measures less than 7 on pH scale
Term
Base
Definition
Comopound that removes H+ ions and measures more than 7 on pH scale
Term
Atom
Definition
Smallest particle of an element
Term
Carbohydrate
Definition
organic compound made of sugar molecules in ration of 1 C to 2H to 1 O
Term
Nucleus
Definition

Nucleus of a cell is the "brain of the cell" and contains the genetic material

 

Nucleus of an atom is the central portion of the atom that contains the Protons and Neutrons

Term
Compound
Definition
Substance containing two or more elements
Term
Electron
Definition
sub atomic particle with a single unit of negative electric charge
Term
Element
Definition
Pure substance withone type of atom
Term
Enzyme
Definition
Specialized protein with that catalyzes (speeds up ) the chemical reactions in a cell
Term
Inorganic compounds
Definition
Chemical compounds that lack carbon
Term
Ion
Definition
Atom that has become charged due to gain or loss of electron
Term
Lipid
Definition
A water avoiding compound that is found in cells and makes up part of the membrane
Term
Molecule
Definition
Two or more atoms held together by a covalent bond
Term
Monomer
Definition
Small molecular unit that is the building block of a larger molecule
Term
Neutron
Definition
Neutrally charged particle found in the nucleus of an atom
Term
Nucleotide
Definition
Building block of the nucleic acid polymers
Term
Organic Compound
Definition

a compound that has carbon in the molecule

 

(except for carbon dioxide)

Term
pH Scale
Definition
a range of numbers from 0 - 14 that is used to describe how acidic (less than 7) or basic (over 7) a solution is
Term
Polymer
Definition
a long chain of smaller molecular units
Term
Proton
Definition
sub atomic particle found in the nucleus of an atom that has a single positive charge
Term

Product

Definition

the material created as a result of a chemical reaction

 

 

Term
Reactant
Definition

the starting material for a chemical reaction

 

(the arrow points to the products)

Term
Reversible reaction
Definition
A chemical reaction taht can go back and forth from products to reactants
Term
Cell Cycle
Definition
the cycle a cell goes through from a resting cell, to a cell getting ready to divide, to the stages of cell division and back to a resting cell
Term
Cell organelle
Definition

a part of a cell with a specific function

(like nucleus is the brain of the cell)

Term
Solute
Definition
Substance in a solution that is dissolved and is present in smaller amounts (like the stuff you stirred in )
Term
solvent
Definition
the substance in a solution that dissolves the other substance and is present in greater amounts
Term
Meiosis
Definition
Cell division for sexual reproduction where the end result is four daughter cells
Term
Mitosis
Definition
Cell division for asexual reproduction where the end result is two identical daughter cells
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