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Science EOG Study
Science vocabulary
18
Science
8th Grade
03/11/2011

Additional Science Flashcards

 


 

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Term

Unicellular

 


Definition
An organism consisting of only one cell.[image]
Term

Multicellular

 

 

Definition

An organism consisting of more than one cell.

[image]

Term
Microscope
Definition
A tool used in science to get a view of things to small to be seen by the naked eye with an up close view.
Term
Cell Membrane
Definition
a thin membrane (a double layer of lipids) enclosing the cytoplasm of a cell; proteins in the membrane control passage of ions (like sodium or potassium or calcium) in and out of the cell; "all cells have a cell membrane"
Term
Cytoplasm 
Definition
The cytoplasm contains cell organelles, water, proteins, carbohydrates, lipids, and trace elements.
Term
Nucleus
Definition
a part of the cell containing DNA and RNA and responsible for growth and reproduction
Term
Eukaryotic
Definition
Describes those cells that have their genetic material (chromosomes) contained within a nucleus.
Term
Prokaryotic
Definition
having cells that lack membrane-bound nuclei
Term
Organelle
Definition
 specialized part of a cell; analogous to an organ
Term
Cell Wall
Definition
a rigid layer of polysaccharides enclosing the membrane of plant and prokaryotic cells; maintains the shape of the cell and serves as a protective barrier
Term
Chloroplast
Definition
plastid containing chlorophyll and other pigments; in plants that carry out photosynthesis
Term

Mitochondria

 

Definition
an organelle containing enzymes responsible for producing energy
Term
Vacuole
Definition
a tiny cavity filled with fluid in the cytoplasm of a cell
Term
Endoplasmic Reticulum
Definition
The endoplasmic reticulum (ER) is an eukaryotic organelle that forms an interconnected network of tubules, vesicles, and cisternae within cells.
Term
Ribosomes 
Definition
Ribosomes are the components of cells that make proteins from amino acids.
Term
Specialization
Definition
he structural adaptation of some body part for a particular function
Term
Tissue
Definition
part of an organism consisting of an aggregate of cells having a similar structure and function
Term
Organ
Definition
 fully differentiated structural and functional unit in an animal that is specialized for some particular function
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