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cells
n/a
25
Science
8th Grade
10/14/2010

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Term

organelle

 

Definition

a cell structure in which functions are carried out to ensure the cell's survival

 

Term
membrane 
Definition
thin covering surrounding organelles
Term
cell membrane
Definition
celll are surrounded by a membrane that separates the  interior of the cell from its surrounding and protects the cell in both animal and plant cell
Term
cytoplasm
Definition
like a jelly-like substance they contain organelles water and other life-supporting materials. it is like the liguid atmosphere. in both animal and plant cells
Term
nucleus
Definition

organelle that controls all the activities within the cell.the nucleus contains dna

in both animal and plant cells

Term
mitochondria
Definition
the energy producers in the cell.it carries out cellular respiration to produce energy. in both animal and plant cells
Term

animal and plant cell

 

Definition
only the animal cell has chloroplast and the cell wall 
Term
ribosomes
Definition
each one is like a small factory the makes protiens in both animal and plant cells
Term
endoplasmic reticulum
Definition
the network of membrance-covered channels that look a bit like the folds of a fan or accordion. in both animal and plant cells
Term
golgi body
Definition
sorts the proteins and packs them into membrane-wrapped structures called vesicles. in both animal and plant cells
Term
vesicles
Definition
are smaller then vacuoles and move materials into out of and around the inside cell
Term
cell wall
Definition
a tough rigid structure that surrounds the cell membrane only in plant cells
Term
chloroplast 
Definition
the  organelle that traps the energy from the sun and changes in into chemical energy
Term
vacuole
Definition
the organelle that performs several functions such as temporary storage of substances and water regulation vacuoles tend to be larger in plant cells.
Term
lysosome
Definition
the organelle that contains digestive enzymes that help the cell breakdown large particles and old worn-out cell organelles.
Term
cell theory
Definition

the cell is the basic unit of life

all organisms are composed of one or more cells 

all cells come from other living cells

Term
prokaryotic cells
Definition
are not surrounded by membranes  no nucleus only has ribsomes
Term
eukaryotic cells
Definition
are surrounded with membranes
Term
bacteria 
Definition

are prokaryotic cells not all are non harmfull

are producers decomposer and pathogon 

Term
viruses
Definition
are tiny non living particles and non cellular  
Term
kinetic nolecular theory
Definition
alway in motion gas very fast liquid fast and solid slow
Term
diffusion
Definition
movement from high concentration to low due to collioroms of molecules
Term
osmosis
Definition
movement of water from high to low through a membrane
Term
part of microscope 
Definition

light source stade objective lenses eyepiece arm coarse focus knob fin focus know body tube

total magnify 40 100 400

reg 4 10 40

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