Shared Flashcard Set

Details

Cells, Elements and Compounds
Key words and their definitions from Chapters 1 and 2
16
Science
7th Grade
10/23/2008

Additional Science Flashcards

 


 

Cards

Term
 Mitochondria
Definition
Produces most of the energy the cell needs to function.
Term
Cell Wall
Definition
Protects and supports the cell.
Term
Vacuole
Definition
The storage center for the cell. It stores energy, old cell parts and waste.
Term
Lysosome
Definition
Breaks down particles into smaller pieces for the cell.
Term
Chloroplast
Definition
Uses light to make energy for the cell.
Term
Nucleus
Definition
The cell's control center. It directs all of the cell's activities.
Term
Ribosome
Definition
Makes protein for the cell.
Term
Cell Membrane
Definition
Controls what enters and leaves the cell.
Term
Element
Definition
A pure substance that cannot be broken down into any simpler substances.
Term
Compound
Definition

Two or more elements that are chemically joined.

H2O=Water

Term
Inorganic Compound
Definition
A compound that does not contain carbon(C), except CO2- inorganic compounds make up nonliving substances. 
Term
Organic Compounds
Definition
Organic refers to life- contains C (and usually H and O). Basic to life.
Term
Carbohydrates
Definition
The main source of energy for living organism:sugar and starch. Sugar broken down in body into glucose, which is used as energy.
Term
Oil and Fats
Definition
An energy rich compound made of C, H, and O, or lipids, fats, used to store energy.
Term
Proteins
Definition
Organic compound made of C, H, O. Protein is found in meat, eggs, and beans.
Term
Amino Acids
Definition
Small molecules of proteins, make different proteins when different amino acids are combined.
Supporting users have an ad free experience!