Quiz 1 review
Download
1 / 8

Quiz 1 review - PowerPoint PPT Presentation


  • 387 Views
  • Uploaded on

Quiz #1 review . A pharmaceutical company hires a chemist to analyze the purity of the water being used in its drug preparations. If the water is pure, the chemist would expect to find A) only molecules of H2O. B)H2O molecules and H + ions. C) H2O molecules and OH – ions.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Quiz 1 review' - nate


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

A pharmaceutical company hires a chemist to analyze the purity of the water being used in its drug preparations. If the water is pure, the chemist would expect to find

A) only molecules of H2O.

B)H2O molecules and H+ ions.

C) H2O molecules and OH– ions.

D) H2O molecules, H+ ions, and OH– ions.

E) only H+ ions and OH– ions.


Water also forms ions sometimes
Water also forms ions sometimes purity of the water being used in its drug preparations. If the water is pure, the chemist would expect to find

H2O ↔ H+ + OH-

  • Spontaneously happens to water molecules

  • 1/ 107 water molecules are ionized in distilled water

  • In dH2O, [H+]= [OH-]

    salt - neutral molecule releases ions

    acid releases hydrogen H+, burns

    base releases hydroxide OH–, slimy


A protein containing more than one polypeptide chain exhibits the level of protein structure
A protein containing more than one polypeptide chain exhibits the __________ level of protein structure.

  • primary

  • secondary

  • tertiary

  • quaternary

  • infinite


Proteins have four levels of structure
Proteins have four levels of structure exhibits the __________ level of protein structure.

  • Primary

  • Secondary

  • Tertiary

  • Quaternary

  • Protein structure depends on all these levels of interaction



Cells are small for good reason
Cells are small for good reason surface-to-volume ratio?  

  • Surface area: volume ratio

  • Rate of food/oxygen entering the cell depends on surface area

  • For large volumes, this rate would approach zero


The rest of the answers so you can practice
The rest of the answers so you can practice surface-to-volume ratio?  

1. B

2. A

3. C

4. A

5. C

6. C

7. D

8. C

9. D

10. D

11. B

12. C

13. A

14. B

15. D

16. B

17. A

18. A

19. A

20. A


ad