SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
GRE Biochemistry
Start Test
Study First
Subjects
:
gre
,
science
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Serine protease that cleaves on c terminal side of aromatics
[A][B]
Charged AAs
chymotrypsin
Pyridoxal-phosphate (PLP)
2. Actin - myosin - and other muscle proteins
aconitase
microfiliments
Polytene chromosome
VLDL
3. Can serve as a primer
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
4. An enzyme that removes a phosphate group from its substrate
phosphatase
Hfr bacteria
biotin
SRP - signal recognition particle
5. Secondary messenger - used for intracellular signal transduction - such as transferring the effects of hormones like glucagon and adrenaline - which cannot pass through the cell membrane. It is involved in the activation of protein kinases and regula
cAMP
EF-G
phosphatase
Hexokinase and PFK1
6. Enter cells freely
Thiamine Pyrophosphate (TPP)
Steroid Hormones
cAMP
epimers
7. Possess F factor as a plasmid independent of the bacterial genome. The F plasmid contains only F factor DNA and no DNA from the bacterial genome.
origin of multi gene families
F+ bacteria
microtubules
trypsin
8. Acetyl-CoA to malonyl-CoA - rate limiting step in fatty acid synthesis
kb
Thiamine Pyrophosphate (TPP)
Acetyl-CoA carboxylase
F' (F-prime) bacteria
9. Regulator of glycolysis when glucose is low by cleaving 2;6 BPG lowering PFK1 - opposite effect when glucose is high
FAD and NADP ATP equivalents
Aromatic/Achiral AAs
PFK2
cAMP
10. Preferable to hydrolysis (like in the breakdown of glycogen or starch - as in the example above) because glucose 1-phosphate yields more ATP than does free glucose when subsequently catabolized to pyruvate.
mtDNA and chDNA
Acetyl-CoA carboxylase
F- bacteria
phosphorolysis
11. Recruits RecA protein - inhibited by LexA - results in mutagenesis
F- bacteria
pleiotropic
SOS repair
cofactors
12. Makes Acetyl-CoA from pyruvate
Pyruvate carboxylase
pyruvate dehydrogenase
isocitrate dehydrogenase and a-ketogluterase
pleiotropic
13. PKa = pH
nucleophile
aconitase
[B]=[A] - ratio = 1
Aromatic/Achiral AAs
14. 1e-14
Signal recognition particle (SRP)
tyrosine kinase
[A][B]
kb
15. Gprotein association - exchanges GDP to GTP - converts AMP into cyclic AMP. Cyclic AMP binds to protein kinase A: Protein kinase A phosphorylates phosphorylase kinase. increases Ca which binds calmodulin proteins which then binds to phosphorylase kin
2D gel electrophoresis
Aromatic/Achiral AAs
epinephrine
biotin
16. Failure of chromosome pairs to separate during meiosis
nondisjunction
eEF-1 and eEF-2
intermediate filiments
F- bacteria
17. Isoelectric point and MW
aconitase
gene conversion
nucleophile
2D gel electrophoresis
18. Only one carbon center is changed
cAMP
epimers
centimorgans
intermediate filiments
19. Acts as a coenzyme in all transamination reactions - and in some decarboxylation and deamination reactions of amino acids. The aldehyde group of PLP forms a Schiff-base linkage (internal aldimine) with the e-amino group of a specific lysine group of
Pyridoxal-phosphate (PLP)
F+ bacteria
eEF-1 and eEF-2
alternative splicing
20. Possess F factor integrated into the bacterial genome. After integration into the host chromosomal DNA - these plasmids possess portions of - or entire - F factor and portions of the bacterial genome.
2D gel electrophoresis
Acetyl-CoA carboxylase
Pyruvate carboxylase
Hfr bacteria
21. (His - Arg - Lys +) - (Glu - Asp -)
chymotrypsin
Charged AAs
kb
temperate bacteriophage
22. Catalyzes the transport of tRNA and mRNA down the ribosome in eukaryotes
eEF-1 and eEF-2
pH
FAD and NADP ATP equivalents
Acetyl-CoA carboxylase
23. Recognizes and targets specific proteins to the endoplasmic reticulum in eukaryotes and the plasma membrane in prokaryotes
chymotrypsin
aconitase
cell plate
Signal recognition particle (SRP)
24. The most important regulatory enzyme of glycolysis. It is an allosteric enzyme made of 4 subunits and controlled by many activators and inhibitors. PFK-1 catalyzes the important 'committed' step of glycolysis - the conversion of fructose 6-phosphate
PFK1
Polar AAs
VLDL
2 -4 DNP
25. Krebs cycle enzyme
F' (F-prime) bacteria
aconitase
phosphorolysis
biotin
26. Measure tendency for recombination (frequency) 1cM = 1% chance of being separated
centimorgans
cell plate
Hexokinase and PFK1
northern blot
27. Contain their own DNA - mRNA - and proteins to synthesize more
phosphatase
PFK2
PEP carboxylase
mitochondria
28. Phosphotransferase - is a type of enzyme that transfers phosphate groups from high-energy donor molecules - such as ATP -[2] to specific substrates. The process is referred to as phosphorylation -
F- bacteria
biotin
SRP - signal recognition particle
kinase
29. It uncouples oxidative phosphorylation by carrying protons across the mitochondrial membrane - leading to a rapid consumption of energy without generation of ATP.
PFK2
intermediate filiments
cofactors
2 -4 DNP
30. Enzymes in Krebs cycle that produce NADH
cofactors
isocitrate dehydrogenase and a-ketogluterase
eEF-1 and eEF-2
Aromatic/Achiral AAs
31. Operon 1/2 - gene 1/6
phosphatase
pyruvate dehydrogenase
chance of in frame fusion for operon? and gene?
Acetyl-CoA carboxylase
32. Repeated replication w/o cell division
pH
tyrosine kinase
Polytene chromosome
[A][B]
33. Phe - Trp - Tyr - Gly - Pro
[B]=[A] - ratio = 1
3' terminal -OH
Aromatic/Achiral AAs
Non Polar AAs
34. Derived from golgi vesicles
chymotrypsin
northern blot
Steroid Hormones
cell plate
35. = pKa+ log(B/A) - -log(Ka)
VLDL
PFK2
pH
trypsin
36. Measures physical base pair distance
cis and trans golgi network
F+ bacteria
kb
cofactors
37. Triglycerides - cholesterols - and phospholipids
Polytene chromosome
epinephrine
phosphorolysis
VLDL
38. When exons are arranged in multiple orders after removal of introns
F- bacteria
alternative splicing
microtubules
epimers
39. Can result in allele differences - suce as 3:1 and 1:3
centimorgans
mitochondria
gene conversion
2 -4 DNP
40. Possess an F plasmid that also includes some DNA taken from the bacterial genome. Sometimes it is formed by incorrect excision from the chromosome
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
41. Catalyzes the transport of tRNA and mRNA down the ribosome in prokaryotes
phosphorolysis
Steroid Hormones
EF-G
[A][B]
42. Non-protein chemical compound that is bound to a protein and is required for the protein'S biological activity
F' (F-prime) bacteria
cofactors
F+ bacteria
pyruvate dehydrogenase
43. Do not contain F factor
mitochondria
centimorgans
F- bacteria
Signal recognition particle (SRP)
44. Vitamin B1 - cofactor that aids in dehydrogenase mostly
cis and trans golgi network
Thiamine Pyrophosphate (TPP)
phosphatase
PFK1
45. MRNA
northern blot
pleiotropic
centimorgans
aconitase
46. Catalyze the phosphorylation of tyrosine residues in proteins - involved in signal cascades
biotin
kb
tyrosine kinase
FAD and NADP ATP equivalents
47. Vitamin B7 - cofactor that aids in CO2 transfer (carboxylase)
pH
biotin
origin of multi gene families
epimers
48. Gene duplication
origin of multi gene families
aconitase
northern blot
catalase
49. Catalyzes the irreversible carboxylation of pyruvate to oxaloacetate (OAA).
[A][B]
pyruvate dehydrogenase
mtDNA and chDNA
Pyruvate carboxylase
50. Gene has multiple effects
temperate bacteriophage
SOS repair
pleiotropic
Polytene chromosome