Quia Home Home FAQ About Log in Subscribe now 30-day free trial
Java Games: Matching, concentration, word search, and flashcards.

Science Unit 3 Critical Vocabulary

These are some of the most important words to know for Unit 3.


AB
compound light microscopelight passes through an object and then 2 or more lenses
electron microscopeuses a magnetic field and a beam of electrons
cell theorysays that cells come only from other cells
cell theorysays that cells are the basic structure of life
cell theorysays that organisms are made up of cells
diffusionmovement from an area of many to an area of few
osmosisdiffusion of water through a cell membrane
passive transportmovement through the cell membrane that uses no energy
active transportmovement through the cell membrane that uses energy
endocytosistype of active transport that moves particles into the cell
exocytosistype of active transport that moves particles out of the cell
mitosisthe division of a nucleus into 2 nuclei
meiosisnuclear division that produces a sex cell
fertilizationwhen an egg and a sperm cell combine
DNAfound in the nucleus and contains a copy of all the organisms information
RNAcarries messages from the nucleus to the ribosomes
mutationpermanent change in a gene or chromosome
cloningan offspring that gets all of its DNA from one parent