Exam (elaborations)
Mastering Biology 2 Exam Questions and Answers
- Course
- Institution
Mastering Biology 2 Exam Questions and Answers
[Show more]
Content preview
Mastering Biology 2 Exam Questionsand Answers
Which of these is NOT a lipid?
a) RNA
b) phospholipid
c) steroids
d) cholesterol
e) wax - Answer -b) RNA
Which of these is rich in unsaturated fats?
a) beef fat
b) olive oil
c) lard
d) a fat that is solid at room temperature
e) butter - Answer -b) olive oil
A function of cholesterol that does not harm health is its role _____.
a) All of cholesterol's effects cause the body harm.
b) the most abundant male sex hormone
c) as a component of animal cell membranes
d) in calcium and phosphate metabolism
e) as the primary female sex hormone - Answer -c) as a component of animal cell
membranes
Proteins are polymers of _____.
a) glycerol
b) amino acids
c) nucleotides
d) CH2O units
e) hydrocarbons - Answer -b) amino acids
What type of bond joins the monomers in a protein's primary structure?
a) S - S
b) peptide
c) hydrogen
d) ionic
e) hydrophobic - Answer -b) peptide
, The secondary structure of a protein results from _____.
a) hydrophobic interactions
b) bonds between sulfur atoms
c) peptide bonds
d) hydrogen bonds
e) ionic bonds - Answer -d) hydrogen bonds
Tertiary structure is NOT directly dependent on _____.
a) bonds between sulfur atoms
b) peptide bonds
c) hydrophobic interactions
d) ionic bonds
e) hydrogen bonds - Answer -b) peptide bonds
The bonding of two amino acid molecules to form a larger molecule requires
a) both the release of a carbon dioxide molecule and the addition of a nitrogen atom.
b) the release of a carbon dioxide molecule.
c) the release of a water molecule.
d) the addition of a water molecule.
e) the addition of a nitrogen atom. - Answer -c) the release of a water molecule
There are 20 different amino acids. What makes one amino acid different from another?
a) different alpha carbons
b) different side chains (R groups) attached to an alpha carbon
c) different asymmetric carbons
d) different amino groups attached to an alpha carbon
e) different carboxyl groups attached to an alpha carbon - Answer -b) different side
chains (R groups) attached to an alpha carbon
Which type of interaction stabilizes the alpha helix and the beta pleated sheet structures
of proteins?
a) nonpolar covalent bonds
b) hydrophobic interactions
c) peptide bonds
d) hydrogen bonds
e) ionic bonds - Answer -d) hydrogen bonds
Which of the following descriptions best fits the class of molecules known as
nucleotides?
a) a nitrogenous base and a phosphate group
b) a nitrogenous base, a phosphate group, and a pentose sugar
c) a nitrogenous base and a pentose sugar
d) a pentose sugar and a purine or pyrimidine
e) a phosphate group and an adenine or uracil - Answer -b) a nitrogenous base, a
phosphate group, and a pentose sugar
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 or Stuvia-credit 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 STASSUKHAREV. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75632 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now