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These are exercise test questions to help build your knowledge of Proteins, Amino Acids, Nucleic Acids, Electron transport chain and Tricarboxylic acid 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 the following interactions is LEAST LIKELY to contribute to the overall 3-dimensional structure of a protein and its physiological function?
A. Hydrophobic regions
B. Hydrogen bonding
C. Conduction of heat
D. Disulfide bonds
E. Ionic bonding
2. Which of the following classifications will MORE LIKE describe the dual function of the side groups of an amino acid acting as polar binding site as well as an acid-base buffer?
A. Non-polar amino acids
B. Polar and uncharged amino acids
C. Polar and charged amino acids
D. Peptide bonds
E. L-form isomers
3. Which of the following statements is the MOST ACCURATE in regards to the DNA molecular structure?
A. DNA is a single stranded molecule with secondary and tertiary structures of a common protein.
B. DNA strands run in the same direction and are parallel to each other in a linear fashion to keep the DNA molecule intact.
C. The DNA molecule has a double stranded spiral shape with two types of grooves for protein interactions.
D. The phosphodiester bond formed between the carbon atoms of two adjacent ribose sugars facilitates the overall shape of the DNA molecule.
E. The overall shape of the DNA molecule is determined by base pairing between two purines (adenine and guanine) or two pyrimidines (cytosine and thymine).

4. In which region of the tRNA molecule would amino acids MOST LIKELY bind?
A. Anticodon
B. Ribothymidine
C. Dihydrouridine
D. 3' end adenosine
E. Pseudouridine

5. Which of the following DNA repair mechanisms MOST LIKELY corrects the addition of bulky adducts on the bases of DNA?
A. Base Excision
B. Replication
C. Mismatch
D. Nucleotide Excision
E. Transcription-Coupled
6. Which of the following processes BEST describe the release of an uncharged-tRNA on the P site and the movement of a peptidyl-tRNA from the A site to the P site of the 80S ribosome?
A. Replication
B. Transcription
C. Initiation
D. Translocation
E. Termination

7. Which of the following statements is the LEAST ACCURATE about DNA polymerase delta?
A. This enzyme starts adding polynucleotides to the newly synthesized DNA chain after an RNA-DNA primer is formed on both the leading and lagging strands.
B. This enzyme can synthesize about 200 nucleotides of DNA in the lagging strand before it reaches the RNA primer of the next Okazaki fragment.
C. This enzyme continuously adds polynucleotides to the newly synthesize DNA in the leading strand.
D. This enzyme is also considered a 3' to 5' exonuclease that proofreads the newly synthesize DNA to detect and repair DNA changes.
E. This enzyme has the capabilities of an RNA polymerase and completes DNA synthesis at the end of the chromosomes.

8. Which of the following DNA mutations will MOST LIKELY produce a defective mRNA with a different reading frame than normal?
A. Point Mutations
B. Frameshift
C. Missense
D. Nonsense
E. Silent

Questions & Answers

what is Nano technology ?
Bob Reply
write examples of Nano molecule?
The nanotechnology is as new science, to scale nanometric
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
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
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
characteristics of micro business
for teaching engĺish at school how nano technology help us
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
what is the actual application of fullerenes nowadays?
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
is Bucky paper clear?
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Do you know which machine is used to that process?
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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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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