Pg 7.jpeg - 7 of 8 Introductory Biochemistry Course Examination#2 Page 6 of 8 STUDENT'S NAME Question 18(2 points Which of the following are possible

Pg 7.jpeg - 7 of 8 Introductory Biochemistry Course...

This preview shows page 1 out of 1 page.

Image of page 1

You've reached the end of your free preview.

Want to read the whole page?

Unformatted text preview: 7 of 8 Introductory Biochemistry Course Examination #2 Page 6 of 8 STUDENT'S NAME: Question 18 (2 points): Which of the following are possible base compositions for a single-stranded RNA? %A %G %C %U A. 35 10 30 0 25 B. 10 40 40 0 10 C. 35 35 15 0 15 D. All of the above E. None of the above Question 19 (2 points): What is the complimentary sequence of the DNA fragment with the following sequence: DNA fragment: 5'-GAATTCATGAAC-3' A. 5'-TACAAGCTTAAG-3' B. 5'-CTTAAGTACAAG-3' C. 5'- GAATTCATGAAC-3' D. 5'-GAATTCGAACAT-3' E. 5'-GTTCATGAATTC-3' Question 20 (12 points, 1 point for each correct answer): Circle "TRUE" or "FALSE" for each statement below. TRUE or FALSE: Commercial hydrogenation of vegetable oils leads to conversion of some cis double bonds to trans double bonds. TRUE or FALSE: All naturally occurring fatty acids do not contain double bonds. TRUE or FALSE: Most glycerophospholipids are amphipatic molecules that have hydrophobic tail(s) and hydrophilic charged/polar head group. TRUE or FALSE: Triacylglycerols containing fatty acids with multiple cis double bonds have lower melting temperatures then those containing only saturated fatty acids. TRUE or FALSE: Most bacteria can synthesize cholesterol. TRUE or FALSE: Glycerophospholipids are the main storage forms of lipids in animals. TRUE or FALSE: Most of the steroid hormones are synthesized from fatty acids. TRUE or FALSE: Triacylglycerols are the main structural components of biomembranes. TRUE or FALSE: Biological membranes are composed of a variety of lipids and proteins. TRUE or FALSE: Inner and outer leaflets of the plasma membrane of an animal cell usually have identical lipid compositions. TRUE or FALSE: Transmembane proteins can be involved in passive transport of nutrients across the membrane. TRUE or FALSE: Plasma membrane is impermeable to water and other small non-polar uncharged molecules. BIOS-352/CHEM-352 Introductory Biochemistry Course Examination #2 Page 7 of 8 STUDENT'S NAME: Question 21 (2 points): When a bacterium such as E. coli is shifted from a warmer growth temperature to a cooler growth temperature, it compensates by: A. Synthesizing thicker membranes to insulate the cell from the cold environment B. Increasing its metabolic rate to generate more heat C. Putting longer-chain saturated fatty acids into its membranes...
View Full Document

  • Spring '11
  • Nicholas
  • Exam #2

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Stuck? We have tutors online 24/7 who can help you get unstuck.
A+ icon
Ask Expert Tutors You can ask You can ask ( soon) You can ask (will expire )
Answers in as fast as 15 minutes
A+ icon
Ask Expert Tutors