Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
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.
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.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
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


grade 7 science unit

What are the two types of cells? plant and animal
What does a plant cell have that an animal cell does not have? chloroplasts and cell wall
What is the definition of Cell Theory? 1. All living things are made of cells. 2. Cells are the basic units of life. 3. All cells are made from different cells.
What makes ribosomes? nucleolus
What provides structure to the plant cell? Cell wall
What is diffusion? Diffusion is the net passive movement of particles (atoms, ions or molecules) from a region in which they are in higher concentration to regions of lower concentration.
What is osmosis? Osmosis is the spontaneous net movement of solvent molecules through a semi-permeable membrane into a region of higher solute concentration
Which is the most complex system (organelle, cell, organ system or tissue)? organ system
Describe the process of breathing. Air is brought in through the nose, then goes down the trachea into the bronchial tubes. The oxygen passes to the bronchioles to the alveoli to the capillaries and the oxygen is transported through the blood stream by the cardiovascular system.
Name the parts of the animal cell. 1. Nucleus 2. Nucleolus 3. Mitochondria 4. Cell membrane 5. ER 6. Ribosomes 7. Cytoplasm 8. Vacuoles 9. Goli Apparatus 10. Lysosomes
What is the function of the nucleus? contains the hereditary material DNA and directs the activities of the cell.
What is the function of the cell membrane? forms the outer covering of the cell, and is semi-permeable.
What is the function of cytoplasm? is a gel-like matrix where all the other cell organelles are suspended inside the cell.
What is the function of Goli Complex? is responsible for storing, packaging of cellular products.
What is the function of lysosomes? are enzyme sacs, that digest cellular wastes.
What is the function of the Mitochondria? is the site for cellular respiration and producers of energy.
What is the function of the Ribosomes? are made of RNA and proteins, and are sites for protein synthesis.
What is the function of the nucleolus? is the structure within the nucleus and helps in synthesis of ribosomes.
What experiment did you do to illustrate diffusion? balloon experiment
Created by: raffertyj



Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

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