1. Which material was able to move through the membrane?

2. Which cell part is represented by the blue rows of molecules?

3. Water is more concentrated on A. The left B. The right

4. Water molecules will tend to diffuse A. To the left B. To the right

5. If water diffuses through a cell membrane, that is called ____?

6. The process shown below is called ________?

7. What is the law of diffusion? Use the terms “high concentration” and “low concentration” in your answer

8. The area of higher concentration is A. TOP B. Bottom

9. The area of lower concentration is A. Top B. Bottom

10. Black line = A membrane which is permeable to the red particles. In this situation diffusion through the membrane A. Will happen B. Will not happen

11. Black line = membrane which is impermeable to the red particles. In this situation diffusion through the membrane A. Will happen B. Will not happen

12. Milk fat particles at 400X magnification. At room temperature. These particles will be A. Moving constantly B. Not moving

13. At absolute zero – 454 F these particles will A. Vibrate back and forth B stay still

14. The constant movement of all particles in the universe is called _____?

15. We took the shell off of some eggs in class Evidence suggests that protein and fat molecules inside of an egg A. Can move through the cell membrane B. Can not move through the cell membrane

16. When cells make proteins… Name the molecule which carries the recipe (gene ) for making a protein from the nucleus out into the cytoplasm to the ribosomes

17. DNA has the recipes for making A. Cells B. Proteins C. Glucose D. ATP

18. CELLS GET ENERGY DIRECTLY from A. ATP molecules B. ADP molecules C. Protein molecules D. DNA molecules

19. Cells can “recharge” more ATP moleules when they burn glucose A. With oxygen B. Without oxygen C. In ribosomes D. In the nucleus

20. For a cell At Equilibrium with its surroundings.. A. More particles leave the cell than enter. B. More particles enter the cell than leave C. For every particle which leaves the cell.. One particle enters.

DNA 21. DRAW a cell with DNA in the nucleus. Draw the DNA as a double helix

DNA 22. Draw a cell with 4 chromosomes in its nucleus.

Cell division 23. Draw a series of pictures which show an animal cell dividing

Making protein 24. A protein is a long chain of A. DNA molecules B. Amino acid molecules C. Messenger RNA molecules D. Ribosomes

CELL ENERGY 25. In animal cells and in plant cells… glucose sugar is burned in an organelle called A. The Ribosomes B. The Mitochondria C. The Golgi complex D. The nucleus