100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
Previously searched by you
Test Bank for Molecular Cell Biology 8th Edition by Harvey Lodish, Arnold Berk, Chris A. Kaiser, Monty Krieger, Anthony Bretscher, Hidde Ploegh, Angelika Amon, Kelsey C. Martin£15.01
Add to cart
Test Bank for Molecular Cell Biology 8th Edition by Harvey Lodish, Arnold Berk, Chris A. Kaiser, Monty Krieger, Anthony Bretscher, Hidde Ploegh, Angelika Amon, Kelsey C. Martin
27 views 1 purchase
Module
Molecular Cell Biology
Institution
Molecular Cell Biology
Test Bank for Molecular Cell Biology 8th Edition by Harvey Lodish, Arnold Berk, Chris A. Kaiser, Monty Krieger, Anthony Bretscher, Hidde Ploegh, Angelika Amon, Kelsey C. Martin
4. Which of the following is the weakest interaction?
a. hydrogen bond
b. ionic bond
c. phosphoanhydride bond
d. van der Waals interaction
Ans: d
Question Type: Multiple Choice
,15 Transport Across Cell Membranes 2
Chapter: 2
Blooms: Understanding
Difficulty: Easy
5. When two atoms differing in electronegativity are joined in a covalent bond, then the:
a. electrons are shared equally between the atoms.
b. bond is nonpolar.
c. resulting compound is devoid of any dipole moment.
d. atom with the greater electronegativity attracts the bonded electrons more strongly.
6. The interactions between two proteins such as an antibody and an antigen or a hormone and its receptor are quite strong
despite the fact that these interactions consist of relatively weak noncovalent bonds. How can this be?
Ans: Two proteins can bind tightly because of molecular complementarity, in which multiple noncovalent bonds participate.
Although each individual bond is weak, the cumulative effect of many noncovalent bonds is a relatively strong and highly
specific interaction.
Question Type: Essay
Chapter: 2
Blooms: Analyzing
Difficulty: Moderate
7. What produces the dipole of a water molecule?
Ans: The dipole of a water molecule is caused by the difference in electronegativity between O and H. The oxygen atom has
a greater electronegativity than the hydrogen atom. As a result, oxygen attracts the electrons in the O–H bond more strongly,
and the oxygen side of the bond has a slight net negative charge. This results in a dipole moment.
Question Type: Essay
Chapter: 2.1
Blooms: Understanding
Difficulty: Moderate
Section 2.2
8. Which of the following is a negatively charged amino acid?
a. alanine
b. aspartate
c. glutamine
d. histidine
12. Based on what you know about hydrophobic interactions, which of the following is/are composed of a bilayer?
a. a cell’s membrane
b. spontaneously aggregated phospholipids surrounding an aqueous interior
c. lipid vesicles that have budded off the cell’s membrane
d. all of the above
13. You discover that you suffer from a deficiency in the amino acid tryptophan. At the pharmacy, you find both D-
tryptophan and L-tryptophan supplements. Which do you purchase? Why?
Ans: You should choose L-tryptophan. All amino acids can exist as one of two stereoisomers ( D or L) because of asymmetry
around the α carbon. Proteins consist of the L form of amino acids, and as these stereoisomers possess distinct biological
properties and are not readily interconverted, you should choose the form that is normally utilized by cells.
Question Type: Essay
Chapter: 2
Application
Difficulty: Moderate
14. Cysteine often plays an important role in stabilizing protein structure. Explain how this works.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Succeed. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £15.01. You're not tied to anything after your purchase.
