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

Science Test US3

Cell Wall outer layer rigid, strong, stiff made of cellulose support (grow tall) protection allows H2O, O2, CO2 to pass into and out of cell
Cell Membrane plant - inside cell wall animal - outer layer; cholesterol selectively permeable support protection controls movement of materials in/out of cell barrier between cell and its environment maintains homeostasis
Nucleolus Spherical shape Visible when cell is not dividing Contains RNA for protein manufacture
Cytoplasm clear, thick, jellylike material and organelles found inside cell membrane supports /protects cell organelles
Endoplasmic reticulum (E.R.) network of tubes or membranes carries materials through cell
Ribosomes small bodies free or attached to E.R. produces proteins
Mitochondria bean-shaped with inner membranes breaks down sugar molecules into energy
Vacuole fluid-filled sacs store food, water, waste (plants need to store large amounts of food)
Lysosomes small, round, with a membrane breaks down larger food molecules into smaller molecules digests old cell parts
Chloroplast green, oval usually containing chlorophyll (green pigment) uses energy from sun to make food for the plant (photosynthesis)
Nucleus large, oval controls cell activities
Chromosome carries the genetic material
Golgi Apparatus process and package proteins and lipids
Plasma Membrane encloses their contents and serves as a semi-porous barrier to the outside environment
Microtubules conveyer belts inside the cells they move vesicles, granules, organelles like mitochondria, and chromosomes via special attachment proteins
Plastid are the site of manufacture and storage of important chemical compounds used by the cell
Centriole organize the assembly of microtubules during cell division a ring of nine microtubule "triplets" are arranged at right angles to one another
Centrosome serves as the main microtubule organizing center
All living this: Use energy, develop and grow, maintain themselves (body temperature), reproduce, and are a part of evolving populations
Created by: nibess