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.

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


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

SCIENCE STUDY STUFF

Science scientists

TermDefinition
Zacharias Janssen (Scientist) Made first crude compound microscope.
Anton Van Leeuvenhoek (Scientist) Made simple microscope. reported seeing tiny "animacules" in pond water could magnify 270X
Robert Hooke (Scientist) discovered and named "cells" in cork.
Mathias Schleiden (Scientist) concluded that all plants were made of cells
Theodor Schwann (Scientist) Concluded that all animals were made up if cells
Rudolph Virchow (Scientist) Concluded that cells dont form on their own; cells divide to new cells.
Cell theory 1.) All organisms are made up of one or more cells. 2.) Cells are the basic units of structure and function in all organisms. 3.) All cells come from preexisting cells.
Prokaryotic (Cell) Cells with no membrane around their nuclear material (no nucleus) - bacteria
Eukaryotic (Cell) Cells that have nucleus with membrane around it. -all plant and animal cells
Cell Membrane (Cell) Structure that forms outer boundary of the cell. Allows certain materials to move into and out of cell. (food, oxygen, wastes, etc.)
Nucleus (Cell) Structure that directs all cell activities.
Cytoplasm (Cell) gel-like substance that fills the cell
Organelles (Cell) structures within the cytoplasm that do specific jobs for the cell
endoplasmic reticulum (Cell) folded material that moves materials around the cell
Ribosome (Cell) small structures that make proteins
Golgi Bodies (Cell) membrane covered sacs that package and move proteins to the outside of the cell
Mitochondria (Cell) breaks down food to release energy
Lysosomes (Cell) membraned structures containing chemicals that digest wastes, worn out cell organelles, & food
Vacuoles (Cell) storage areas within cell
Cell Wall (Cell) rigid structure outside cell membrane
Chloropasts (Cell) organelle that changes light energy into chemical energy (glucose)
Created by: Josh.