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. It uncouples oxidative phosphorylation by carrying protons across the mitochondrial membrane - leading to a rapid consumption of energy without generation of ATP.
2 -4 DNP
euchromatin
kb
Charged AAs
2. Measures physical base pair distance
kb
intermediate filiments
pleiotropic
SRP - signal recognition particle
3. Tightly packed form of DNA - less accessible to protein factors that usually bind DNA
EF-G
heterochromatin
F- bacteria
Non Polar AAs
4. RNA protein-complex
PFK1
trypsin
SRP - signal recognition particle
FAD and NADP ATP equivalents
5. Do not contain F factor
[A][B]
F- bacteria
Hexokinase and PFK1
eEF-1 and eEF-2
6. 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.
F+ bacteria
phosphorolysis
pyruvate dehydrogenase
F' (F-prime) bacteria
7. Catalyzes the addition of bicarbonate to phosphoenolpyruvate (PEP) to form the four-carbon compound oxaloacetate
gene conversion
PEP carboxykinase
PEP carboxylase
mtDNA and chDNA
8. 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)
PFK2
pleiotropic
Polytene chromosome
9. Can serve as a primer
10. Catalyzes the transport of tRNA and mRNA down the ribosome in prokaryotes
pH
PEP carboxykinase
EF-G
tyrosine kinase
11. Nuclear lamins - desmins - keratins - internexins (structure)
euchromatin
3' terminal -OH
mtDNA and chDNA
intermediate filiments
12. Donates electrons to form a bond such as N in amines and O in alcohols
origin of multi gene families
nucleophile
SOS repair
Thiamine Pyrophosphate (TPP)
13. Converts oxaloacetate into phosphoenolpyruvate and carbon dioxide.
microfiliments
cell plate
Charged AAs
PEP carboxykinase
14. Repeated replication w/o cell division
Polytene chromosome
2 -4 DNP
eEF-1 and eEF-2
SRP - signal recognition particle
15. 1e-14
phosphatase
[A][B]
Pyridoxal-phosphate (PLP)
Charged AAs
16. Failure of chromosome pairs to separate during meiosis
catalase
pleiotropic
nondisjunction
Hfr bacteria
17. FAD-2 - NADP-3
SOS repair
FAD and NADP ATP equivalents
heterochromatin
PEP carboxylase
18. Triglycerides - cholesterols - and phospholipids
PFK2
euchromatin
VLDL
3' terminal -OH
19. Contain their own DNA - mRNA - and proteins to synthesize more
PFK2
heterochromatin
pH
mitochondria
20. Krebs cycle enzyme
3' terminal -OH
cell plate
nondisjunction
aconitase
21. Val - Leu - Ile - Ala - Met
chymotrypsin
Acetyl-CoA carboxylase
3' terminal -OH
Non Polar AAs
22. When exons are arranged in multiple orders after removal of introns
alternative splicing
F+ bacteria
chymotrypsin
biotin
23. Can result in allele differences - suce as 3:1 and 1:3
kinase
gene conversion
mitochondria
F' (F-prime) bacteria
24. Derived from golgi vesicles
[A][B]
F' (F-prime) bacteria
PFK1
cell plate
25. Actin - myosin - and other muscle proteins
microfiliments
isocitrate dehydrogenase and a-ketogluterase
nucleophile
PFK2
26. Cis faces the ER and trans faces the plasma membrane
pyruvate dehydrogenase
Hexokinase and PFK1
2 -4 DNP
cis and trans golgi network
27. Enter cells freely
Steroid Hormones
F- bacteria
mitochondria
Pyruvate carboxylase
28. Phe - Trp - Tyr - Gly - Pro
chance of in frame fusion for operon? and gene?
kb
trypsin
Aromatic/Achiral AAs
29. An enzyme that removes a phosphate group from its substrate
[A][B]
pyruvate dehydrogenase
phosphatase
gene conversion
30. Isoelectric point and MW
PFK1
nucleophile
kb
2D gel electrophoresis
31. PKa = pH
Steroid Hormones
kb
intermediate filiments
[B]=[A] - ratio = 1
32. Only one carbon center is changed
origin of multi gene families
3' terminal -OH
SOS repair
epimers
33. MRNA
F- bacteria
northern blot
Polar AAs
cell plate
34. Cleaves on C terminal side of lysine and arginine
phosphatase
Thiamine Pyrophosphate (TPP)
trypsin
PEP carboxykinase
35. 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
3' terminal -OH
cofactors
Aromatic/Achiral AAs
cAMP
36. Operon 1/2 - gene 1/6
cell plate
FAD and NADP ATP equivalents
chance of in frame fusion for operon? and gene?
chymotrypsin
37. Non-protein chemical compound that is bound to a protein and is required for the protein'S biological activity
EF-G
SRP - signal recognition particle
cofactors
Pyruvate carboxylase
38. Irreversible reaction that require ATP first part of glycolosis
euchromatin
aconitase
FAD and NADP ATP equivalents
Hexokinase and PFK1
39. Enzymes in Krebs cycle that produce NADH
isocitrate dehydrogenase and a-ketogluterase
FAD and NADP ATP equivalents
[B]=[A] - ratio = 1
VLDL
40. Catalyze the phosphorylation of tyrosine residues in proteins - involved in signal cascades
epinephrine
Pyruvate carboxylase
temperate bacteriophage
tyrosine kinase
41. Catalyzes the transport of tRNA and mRNA down the ribosome in eukaryotes
Aromatic/Achiral AAs
pleiotropic
cis and trans golgi network
eEF-1 and eEF-2
42. (His - Arg - Lys +) - (Glu - Asp -)
epimers
microfiliments
PFK1
Charged AAs
43. Vitamin B7 - cofactor that aids in CO2 transfer (carboxylase)
biotin
epimers
isocitrate dehydrogenase and a-ketogluterase
PFK2
44. Gene duplication
chymotrypsin
tyrosine kinase
origin of multi gene families
3' terminal -OH
45. Measure tendency for recombination (frequency) 1cM = 1% chance of being separated
pH
SOS repair
centimorgans
aconitase
46. Regulator of glycolysis when glucose is low by cleaving 2;6 BPG lowering PFK1 - opposite effect when glucose is high
eEF-1 and eEF-2
phosphatase
PFK2
Hfr bacteria
47. 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.
Pyridoxal-phosphate (PLP)
phosphorolysis
eEF-1 and eEF-2
temperate bacteriophage
48. 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 -
Non Polar AAs
nondisjunction
kinase
alternative splicing
49. Gene has multiple effects
pleiotropic
pH
epimers
mitochondria
50. Dynins and kinesins (movement) - cilia and flagella
kinase
heterochromatin
microtubules
2D gel electrophoresis