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These are exercise test questions to help build your knowledge of proteins and nucleic acids lectures. This will help expand your knowledge on the topics to maximize learning at a deeper level, build confidence and help you succeed in the course.
  1. Which of these is NOT a biological requirement for maintaining a protein’s 3-D structure?
  1. It must demonstrate both flexibility and stability.
  2. It must have an external surface compatible with its environment.
  3. It must be compatible with the structure of its binding sites.
  4. It must be degradable.
  5. It must resist folding during synthesis.

2. Which of these primary amino acid sequences would LEAST likely be a component of an α-helix?

  • A. thr-pro-gly
  • B. cys-val-tyr
  • C. ser-lys-ala
  • D. phe-phe-phe
  • E. thr-val-met

3. What immunoglobulin is present in the greatest percentage in the circulation and can cross the placenta to impart immunity to the developing fetus?

  • A. IgG
  • B. IgA
  • C. IgM
  • D. IgD
  • E. IgE

4. Which of the following is the main factor that directly regulates glycation of hemoglobin?

  1. The enzyme controlling the Amadori reaction
  2. The concentration of glucose in blood
  3. The specificity of an enzyme cofactor
  4. The role of insulin for moving glucose into the red blood cell
  5. The concentration of glucagon in blood

5. What statement about an enzyme’s active site is LEAST correct?

  1. The active site is the location of the enzyme-substrate complex.
  2. The primary sequence in an active site has functional groups to facilitate the reaction.
  3. Substrate binding to an active site results in a conformation change in the enzyme shape.
  4. Substrate active sites are specific for enzyme classes.
  5. Enzymes are degraded once the reaction is completed after they leave the active site.

6. What product directly forms when glucokinase catalyzes a reaction with glucose?

  1. Glucose 6-phosphate
  2. Galactose
  3. Branched glucose molecules
  4. Pyruvate
  5. Lactate

7. Which protein pair is an example of paralog?

  1. HbA and HbF
  2. CK-BB and CK-MM
  3. HbA1 and HbA2
  4. Myoglobin and hemoglobin
  5. Lactate dehydrogenase and hemoglobin

8. Which of the following structures would LEAST likely be a part of a DNA molecule?

  1. Adenine bonded to guanine as purine bases
  2. Cytosine bonded to uracil as pyrimidine bases
  3. Deoxyribose sugar
  4. 3’ to 5’ phosphodiester bonds between sugar molecules
  5. Thymine bonded to cytosine as pyrimidine bases
9. Which of the following is NOT a component of the 80S ribosome?
A. 60S rRNA subunit
B. 40S rRNA subunit
C. DNA and proteins
D. rRNA and proteins
E. Binding sites for tRNA

For #10-11, match the RNA type to the correct description of the corresponding structure.

  • 10. mRNA
  • 11. tRNA
  • A. Cloverleaf adapter with 3’ adenosine end and an anticodon region
  • B. Double stranded helix with hydrogen between the strands
  • C. Single stranded molecule with a 5’-cap and polyadenosine tail
  • D. Two subunits with secondary structures as a result of extensive base pairing loops
  • 12. Which statements BEST explains the process demonstrated in the figure?
    1. There are two chromosomes that are exchanging portions of DNA.
    2. DNA segments are moving to another location on the same gene.
    3. DNA is undergoing normal synthesis per the genetic code.
    4. Ds-DNA is being synthesized from a viral RNA template for human genome integration.
    5. Large portions of chromosomes are exchanged in the presence of a carcinogen.

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
hey
Giriraj
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
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Source:  OpenStax, Biochemistry exercises. OpenStax CNX. Apr 06, 2016 Download for free at https://legacy.cnx.org/content/col11386/1.4
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