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65
Biology
9th Grade
02/23/2011

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Term
Structure
Definition
the way something is build
Term
Function
Definition
the way something works
Term
organism
Definition
living thing
Term
Unicellular
Definition
made up of one cell
Term
multicellular
Definition
made up of one or more cells
Term
Cell
Definition
basic unit of life
Term
Surface Area
Definition
The exposed space that an object has.
Term
Volume
Definition
how much something holds.
Term
Pores
Definition
tiny openings that allow things to pass through.
Term
Eukaryote
Definition
having allot of cells inside a enclosed membrane nucleus.
Term
Prokaryote
Definition
having allot of cells inside a enclosed membrane nucleus.
Term
organelle
Definition
specialized structures that performs specific functions within a Eukaryote.
Term
Cell membrane
Definition
outer layer that surrounds the cell.
Term
Cell wall
Definition
it provides support for plants and other things.
Term
Cytoplasm
Definition
contents of a living cell.
Term
Centrioles
Definition
organizing the movement of chromosomes during cell division.
Term
Nucleus
Definition
The control center it tells the what their jobs are and what they need to do.
Term
Nucleolus
Definition
It contain RNA
Term
Nuclear Membrane
Definition
It surrounds and protects nucleus of the cell.
Term
Nuclear Membrane
Definition
It surrounds and protects nucleus of the cell.
Term
Mitochondria
Definition
organelles that are main source of energy.
Term
Chloroplast
Definition
organelle in plant and other stuff of photosynthesis
Term
Vacuole
Definition
Fluid filled sac within plant and animal that is responsible for holding water.
Term
Ribosomes
Definition
an organelle of a cell that is the site of protein production
Term
Smooth ER
Definition
organelle of a cell that is the site of lipid production and carbohydrate breakdown.
Term
Rough ER
Definition
organelle of a cell that is the site of finale protein process.
Term
Golgi Apparatus
Definition
organelle in a enclosed membrane that is in charge of packaging of proteins.
Term
lysosome
Definition
membrane enclosed sac that contains enzymes that break down proteins.
Term
Vesicle
Definition
sac that carries materials within a cell or to another cell.
Term
Phospolipid Bilayer
Definition
Basic unit of a cell it is made of one group and two fatty acid chains.
Term
Semipermeable
Definition
Specific about what is allowed to pass through the cell.
Term
Diffusion
Definition
moving a high concentration to a lower concentration.
Term
osmosis
Definition
movement of fluid through semipermeable membrane from lower particle concentration to a higher particle contration
Term
Solute
Definition
substance that is dissolved in liquid to create a solution.
Term
Solvent
Definition
liquid that a substance is dissolved to make a solution.
Term
Hypertonic Solution
Definition
any solution with a higher salt concentration
Term
hypertonic solution
Definition
a solution having a lesser solute concentration.
Term
Isotonic solution
Definition
having the same solution inside and out cell.
Term
Membrane Protein
Definition
protein that function within a membrane.
Term
Passive Transport
Definition
Process that doesn't require energy that passes molecules through the membrane.
Term
Simple Diffusion
Definition
Diffusion
Term
Simple Diffusion
Definition
process that doesn't require energy that passes molecules through the membrane.
Term
Facilitated Diffusion
Definition
Diffusion that uses help but doesn't use energy
Term
Active Transport
Definition
Transfer molecule and if needs assistance and uses energy
Term
Endocytosis
Definition
molecules that enter the membrane and get swallowed by the vesicle
Term
Exocytosis
Definition
molecules that get released from cell membrane by vesicle
Term
Organs
Definition
specialized structure that carries a specific function for living organisms.
Term
Tissue
Definition
group of similar orgasms that work together to perform function in a organs.
Term
Differntiation
Definition
process of development or specialization especially cells or tissue.
Term
Fertilization
Definition
process by which an egg cell and sperm cell join together
Term
Fertilization
Definition
process by which an egg cell and sperm cell join together
Term
conception
Definition
The process of fertilization
Term
Embryo
Definition
fertilized egg that has begun cell division
Term
Blastocyst
Definition
group of about 100 cells of two types that form fertilized eggs
Term
DNA
Definition
chemical blueprint for all living things
Term
Stem cells
Definition
non specialized eggs that contain multicellular organism
Term
Totipotent
Definition
able to differentiate into any type of cell in human body or the placenta
Term
Pluripotent
Definition
able to differentiate into any type of cell in human body but not in the placenta
Term
Multipotent
Definition
able to differntiate only into a closely related cell
Term
Unipotent
Definition
able to produce only its own type of cell
Term
Three parts of cell theory
Definition
1. cells are the basic unit of life
2. All living things are made up of cells
3. Cells come from pre-exciting cells
Term
The main difference between Eukaryotes and Prokaryotes
Definition
Ekaryotes and prokaryotes are different because ekaryotes have enclosed membranes and prokaryotes do not
Term
Prokaryotes and Eukaryotes are the same because
Definition
DNA Cytoplasm cytoskeletone cellmembrane ribosomes
Term
Multi cellular
Definition
made of many cells
Term
Unicellular
Definition
made up of one cell
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