Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards




share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Unit 1 Cells

Characteristics of Cells

TermDefinition
Cell the smallest functional and structural unit of all living things
Organism any living thing
Cell membrane a protective layer that covers a cell's surface and acts as a barrier between the inside of a cell and the cell's environment
Cytoplasm the region enclosed by the cell membrane that includes the fluid and all of the organelles of the cell
Organelle a small body in a cells cytoplams that is specialized to perform a specific function
Nucleus where DNA is located in Eukaryote
Prokaryote a single celled organism that does not have a nucleus or membrane bound organelles. Its DNA is located in the cytoplasm. ex: bacteria, archaea
Eukaryote an organism made up of cells that contain their DNA in a nucleus. ex: animals, plants, protists, and fungi
Robert Hooke First person to describe cells. He built a microscope to look at tiny objects.
Cell theory Three basic characteristics of all cells and organisms: All organisms are made up of one or more cells The cell is the basic unit of all organisms All cells come from existing cells
Anton van Leeuwenhoek The first person to describe actual living cells when he looked at a drop of pond water under a microscope.
Unicellular organisms made up of only one cell the single cell must carry out all of the functions for life
Multicellular organisms made up of more than one cell the cells often have specialized functions
Created by: Mrs Lyons