SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
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. 1e-14
[A][B]
F- bacteria
Hfr bacteria
cis and trans golgi network
2. Do not contain F factor
F- bacteria
cis and trans golgi network
Polytene chromosome
mitochondria
3. Serine protease that cleaves on c terminal side of aromatics
cofactors
PEP carboxylase
tyrosine kinase
chymotrypsin
4. Recognizes and targets specific proteins to the endoplasmic reticulum in eukaryotes and the plasma membrane in prokaryotes
F+ bacteria
tyrosine kinase
euchromatin
Signal recognition particle (SRP)
5. Unwound - participates in the active transcription of DNA to mRNA products - site of RNA Pol II regulation
FAD and NADP ATP equivalents
intermediate filiments
origin of multi gene families
euchromatin
6. Val - Leu - Ile - Ala - Met
nondisjunction
isocitrate dehydrogenase and a-ketogluterase
Polytene chromosome
Non Polar AAs
7. Non-protein chemical compound that is bound to a protein and is required for the protein'S biological activity
cofactors
temperate bacteriophage
epimers
Hfr bacteria
8. Actin - myosin - and other muscle proteins
microfiliments
catalase
PFK2
PEP carboxykinase
9. Only one carbon center is changed
microtubules
epimers
nucleophile
origin of multi gene families
10. = pKa+ log(B/A) - -log(Ka)
PEP carboxylase
PFK1
mtDNA and chDNA
pH
11. 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.
Charged AAs
Pyruvate carboxylase
phosphorolysis
2 -4 DNP
12. An enzyme that removes a phosphate group from its substrate
cAMP
phosphatase
SOS repair
aconitase
13. Makes Acetyl-CoA from pyruvate
pyruvate dehydrogenase
centimorgans
cell plate
kb
14. 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
biotin
cAMP
intermediate filiments
pleiotropic
15. Failure of chromosome pairs to separate during meiosis
F- bacteria
Hfr bacteria
nondisjunction
mtDNA and chDNA
16. Cleaves on C terminal side of lysine and arginine
trypsin
centimorgans
FAD and NADP ATP equivalents
F- bacteria
17. (His - Arg - Lys +) - (Glu - Asp -)
cAMP
kinase
EF-G
Charged AAs
18. 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 -
kinase
Steroid Hormones
epinephrine
F+ bacteria
19. Isoelectric point and MW
chymotrypsin
chance of in frame fusion for operon? and gene?
nucleophile
2D gel electrophoresis
20. Possess an F plasmid that also includes some DNA taken from the bacterial genome. Sometimes it is formed by incorrect excision from the chromosome
21. Acetyl-CoA to malonyl-CoA - rate limiting step in fatty acid synthesis
Acetyl-CoA carboxylase
eEF-1 and eEF-2
chymotrypsin
temperate bacteriophage
22. Nuclear lamins - desmins - keratins - internexins (structure)
intermediate filiments
VLDL
F' (F-prime) bacteria
microfiliments
23. Ser - Cys - Thr - Gln - Asn
Polar AAs
epimers
[A][B]
aconitase
24. Catalyzes the addition of bicarbonate to phosphoenolpyruvate (PEP) to form the four-carbon compound oxaloacetate
isocitrate dehydrogenase and a-ketogluterase
PEP carboxylase
centimorgans
Steroid Hormones
25. Vitamin B1 - cofactor that aids in dehydrogenase mostly
Thiamine Pyrophosphate (TPP)
chance of in frame fusion for operon? and gene?
Polytene chromosome
VLDL
26. MRNA
Steroid Hormones
northern blot
alternative splicing
Polar AAs
27. 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
Acetyl-CoA carboxylase
temperate bacteriophage
trypsin
epinephrine
28. Krebs cycle enzyme
aconitase
euchromatin
epinephrine
temperate bacteriophage
29. Enzymes in Krebs cycle that produce NADH
northern blot
F- bacteria
isocitrate dehydrogenase and a-ketogluterase
aconitase
30. 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
cell plate
mitochondria
Hfr bacteria
31. Measures physical base pair distance
cis and trans golgi network
chance of in frame fusion for operon? and gene?
chymotrypsin
kb
32. When exons are arranged in multiple orders after removal of introns
Thiamine Pyrophosphate (TPP)
eEF-1 and eEF-2
SRP - signal recognition particle
alternative splicing
33. Dynins and kinesins (movement) - cilia and flagella
catalase
EF-G
microtubules
kinase
34. Operon 1/2 - gene 1/6
2D gel electrophoresis
chance of in frame fusion for operon? and gene?
cofactors
Thiamine Pyrophosphate (TPP)
35. Catalyzes the transport of tRNA and mRNA down the ribosome in eukaryotes
PFK2
chymotrypsin
eEF-1 and eEF-2
aconitase
36. PKa = pH
tyrosine kinase
VLDL
euchromatin
[B]=[A] - ratio = 1
37. Gene duplication
Polytene chromosome
origin of multi gene families
chance of in frame fusion for operon? and gene?
mtDNA and chDNA
38. Cis faces the ER and trans faces the plasma membrane
alternative splicing
[B]=[A] - ratio = 1
cis and trans golgi network
PFK2
39. Recruits RecA protein - inhibited by LexA - results in mutagenesis
heterochromatin
SOS repair
2D gel electrophoresis
Acetyl-CoA carboxylase
40. Catalyze the phosphorylation of tyrosine residues in proteins - involved in signal cascades
Pyridoxal-phosphate (PLP)
F' (F-prime) bacteria
mtDNA and chDNA
tyrosine kinase
41. Regulator of glycolysis when glucose is low by cleaving 2;6 BPG lowering PFK1 - opposite effect when glucose is high
PFK2
pH
3' terminal -OH
cell plate
42. Circular and double stranded
centimorgans
cAMP
mtDNA and chDNA
cis and trans golgi network
43. Neutralizes H2O2 - found in lysosomes
Hexokinase and PFK1
temperate bacteriophage
catalase
Pyruvate carboxylase
44. Vitamin B7 - cofactor that aids in CO2 transfer (carboxylase)
biotin
eEF-1 and eEF-2
isocitrate dehydrogenase and a-ketogluterase
mitochondria
45. Can result in allele differences - suce as 3:1 and 1:3
gene conversion
phosphorolysis
epimers
centimorgans
46. RNA protein-complex
Pyruvate carboxylase
SRP - signal recognition particle
PEP carboxylase
tyrosine kinase
47. Can serve as a primer
48. 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.
Charged AAs
F+ bacteria
F' (F-prime) bacteria
cell plate
49. Catalyzes the irreversible carboxylation of pyruvate to oxaloacetate (OAA).
Pyruvate carboxylase
pleiotropic
[B]=[A] - ratio = 1
microfiliments
50. Irreversible reaction that require ATP first part of glycolosis
Non Polar AAs
F+ bacteria
Hexokinase and PFK1
[A][B]