Need help answering the following questions. The passive movement of molecules a

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Need help answering the following questions.

The passive movement of molecules along their concentration gradient from an area of high concentration to an area of low concentration is a. osmosis 1. b. diffusion c. tonicity d. molecular weight The movement of water particles along water's concentration gradient across a semipermeable membrane is 2. a. osmosis b. diffusion c. tonicity d. molecular weight Molecules of which state of matter move the fastest, due to random Brownian movement? a. solid 3. b. liquid c. plasma d. gas All of the following factors EXCEPT which one will affect the rate of diffusion? a. molecular weight 4. b. temperature c. elevation d. state of matter The substance being added into a liquid, in order to dissolve it into that liquid, is the a. solvent 5. b. solute c. solution d. solubility The liquid that a substance is being added into, with the hopes of dissolving the substance into the liquid, is the a. solvent 6. b. solute c. solutiorn d. solubility A living cell is suspended in a beaker of a salt solution. If the beaker's salt solution concentration is greater than the salt concentration within the cell, the solution in the beaker is considered to be 7. hypotonic b. hypertonic c. isotonic d. cannot be determined a. In the situation above (in #7), what molecules would move where, and with what result? a. salt molecules would enter the cell and the cell would die b. salt molecules would leave the cell and the cell would die c. water would enter the cell, which would swell d. water would leave the cell, which would shrink 8. The term for when an animal cell fills and swells with water and bursts is a. crenation 9. b. lysis c. plasmolysis d. turgid e. flaccid 10. The term for when a plant cell loses its water and its vacuole shrinks is a. crenation b. lysis c. plasmolysis d. turgid e. flaccid

Explanation / Answer

1 b. Diffusion

2 a osmosis

3 d gas

4. c elevation

5. b solute

6 a solvent

7. b hypertonic

8 d water would leave the cell, which would shrink

9. b lysis or cytolysis

10. c plasmolysis

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