CELL MEMBRANE & PASSIVE TRANSPORT FORMATIVE ASSESSMENT

1. CELL MEMBRANE & PASSIVE TRANSPORTFORMATIVE ASSESSMENT

2. 1. Which of the following is a function of a cell membrane? • maintains homeostasis B) does not allow movement of materials into or out of the cell C) conducts synthesis D) controls hydrolysis of organic compounds

3. 1. Which of the following is a function of a cell membrane? • maintains homeostasis B) does not allow movement of materials into or out of the cell C) conducts synthesis D) controls hydrolysis of organic compounds

4. 2. The lipid bilayer of a cell membrane: A) allows water molecules to pass through it B) allows only food to pass through it C) is rigidly fixed in place and can not move D) allows all materials to pass through it

5. 2. The lipid bilayer of a cell membrane: A) allows water molecules to pass through it B) allows only food to pass through it C) is rigidly fixed in place and can not move D) allows all materials to pass through it

6. 3. Which phrase best describes passive transport? A) requires lots of enzymes B) requires a small amount of DNA C) requires no added energy D) requires sun light

7. 3. Which phrase best describes passive transport? A) requires lots of enzymes B) requires a small amount of DNA C) requires no added energy D) requires sun light

8. 4. The dispersal of ink in a beaker of water is an example of : A) Osmosis B) Cell movement C) Metabolism D) Diffusion

9. 4. The dispersal of ink in a beaker of water is an example of : A) Osmosis B) Cell movement C) Metabolism D) Diffusion

10. 5. Diffusion takes place: A) only through a bilayer membrane to an area of high concentration B) from an area of low concentration to an area of high concentration C) only in liquids or nonliving material and not in organisms D) from an area of high concentration to an area of low concentration

11. 5. Diffusion takes place: A) only through a bilayer membrane to an area of high concentration B) from an area of low concentration to an area of high concentration C) only in liquids or nonliving material and not in organisms D) from an area of high concentration to an area of low concentration

12. 6. The reasoning behind particles naturally moving in diffusion is due to: A) they feel like it B) thermal energy C) particles are always heated D) particles speed up when exposed to air

13. 6. The reasoning behind particles naturally moving in diffusion is due to: A) they feel like it B) thermal energy C) particles are always heated D) particles speed up when exposed to air

14. 7. As a result of diffusion, the concentrations of many types of substances: A) always remain greater inside a membrane B) eventually become balanced on both sides of a membrane C) eventually become higher on the outside of the membrane D) become imbalanced on the inside and outside of the membrane

15. 7. As a result of diffusion, the concentrations of many types of substances: A) always remain greater inside a membrane B) eventually become balanced on both sides of a membrane C) eventually become higher on the outside of the membrane D) become imbalanced on the inside and outside of the membrane

16. 8. The difference in the concentrations of dissolved particles from one location to another is called: A) concentrated solution B) acidic solution C) unconcentrated solution D) concentration gradient

17. 8. The difference in the concentrations of dissolved particles from one location to another is called: A) concentrated solution B) acidic solution C) unconcentrated solution D) concentration gradient

18. 9. Dynamic equilibrium describes molecules that are equally distributed but are: A) catalaysts but not enzymes B) constantly moving C) concentrated in one area D) have a basic pH Ignite Learning Video http://www.youtube.com/watch?v=EH5v54dmb5U

19. 9. Dynamic equilibrium describes molecules that are equally distributed but are: A) catalaysts but not enzymes B) constantly moving C) concentrated in one area D) have a basic pH Ignite Learning Video http://www.youtube.com/watch?v=EH5v54dmb5U

20. 10. Label each of the pictures below with high concentration gradient, low concentration gradient, and zero concentration gradient. _____________________ _____________________ _____________________

21. 10. Label each of the pictures below with high concentration gradient, low concentration gradient, and zero concentration gradient. High concentration gradient Zero concentration gradient (OR dynamic equilibrium) Low concentration gradient

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