Busy. Please wait.

Forgot Password?

Don't have an account?  Sign up 

show password


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.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

Already a StudyStack user? Log In

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

Remove ads
Don't know (0)
Know (0)
remaining cards (0)
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:
restart all cards

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


Everything is made up of cells.

Cell Theory Rudolf Virchow summarized his observations and those of others in the cell theory.
Cell Wall Are tough, rigid outer coverings that protect cells and give them shape.
Cell Membrane The protective layer surrounding every cell.
Cytoplasm Cells are filled with a gelatin like substance called____________ that constantly flows inside the membrane.
Ribosome Cells make their own proteins on small structures called___________.
Organelle Within the cytoplasm of eukaryotic cells are structures called ____________, the largest of which is the nucleus.
Nucleus All cellular activities are directed by the_____________.
Chloroplast In plant cells, food is made in green organelles in the cytoplasm called __________________.
Mitochondrion The energy in food ussually is released by ____________. Are organelles where energy is released when food is broken down into carbon dioxide and water.
Endoplasmic Reticulum Is a series of folded membranes in which materials can be processed and moved around inside of the cell. Like the ER inside.
Golgi body After proteins are made in a cell, they are transferred to another type of cell organelle called the ____________ bodies. Are stacked, flattened membranes. Unlike the ER outside.
Tissue Is a group of similar cells that work together to do one job.
Organ Is a structure made up of two or more different types of tissues that work together.
Organ System A group of organs working together to perform a certain function is an ______________.
Vacuole Stores water.
Eukaryotic Eukaryotic comes from plants and humans or animals.
Lysosome Like Lysol lysosome cleans out the cell.
Prokaryotic Prokaryotic comes from bacteria cells.
Multi Cellular A many celled organism.
Unicellular One celled organism.
Created by: rvega