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Test your basic knowledge |
First Aid: Biochemistry Molecular
Start Test
Study First
Subjects
:
health-sciences
,
first-aid
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. Three amino acids necessary for purine synthesis= glutamine - aspartate and glycine
Total energy expenditure requirement for translocation
Gag on pure gold
Step one of RNA processing
Deamination of cytosine makes
2. HS1 - HSB - H2 - H4
Permanent cells
histone octamer names
Elastin
Xeroderma pigmentosum
3. ATP
Protein synthesis is in which direction
tRNA activation
Loading tRNA on to ribosome energy requirement
Thymine has a
4. A malfunction of mismatch repair (MUt L etc..)
polyadenylation does/does not require a template
Hereditary non polyposis colorectal cancer
Tetracyclines
Cell cycle order
5. Cleave terminal regions of procollagen to transform into insoluable tropocolagen
commaless - non - overlapping
missense mutation
Outside the cell what processing must be done in procolalgen
DNA pol I
6. Methionine - which may be removed before translation is completed
dyenin
missense mutation
capped and tail transcript is called
In eukaryotes the starting amino acid is...
7. Condensed - transciptionally inactive HC- Highly condensed
Heterochromatin
Methotrexate
Smooth ER
origin of replication
8. Unattached to any membrane; site of cytosolic and organeller prtoeins
A- T
Primase
Heterochromatin
Free ribosomes
9. Inhibit DNA gyrase (specific prokaryotic topoisomerase)
polyadenylation does/does not require a template
Fluoroquinolones
Aminoacylt - tRNA synthetase
Mebendazole/thiabendazole
10. Prokaryotic only. Elongates leading strand by adding deoxynucleotides to the 3prime end. Elongates laggin strand. 3 prime to 5 prime exonuclease activity
Protein synthesis initiation
step two of RNA processing
DNA pol III
Sodium K ATPase
11. Proline - glycine
Loading tRNA on to ribosome energy requirement
RNA processing in eukaryotes occurs
missense mutation
Common amino acids in elastin
12. 9+2 arrangement of microtubules -
Xeroderma pigmentosum
Cilia structure
Tropocollagen cross links between_____ to form____
Termination
13. Change resulting in early stop codon
nonsense
Free ribosomes
Higher the cholesterol or long saturated fatty acid content
Thymine has a
14. Remain in G0 regenerate from stem cells
Permanent cells
mRNA start codons
Xeroderma pigmentosum
dyenin
15. ATP- AMP (2 phosphoanhydride bonds)
tRNA aminoacylation
actin and myosin
Which end of a growing DNA strand is the target
DNA ligase
16. H1 string
commaless - non - overlapping
What ties teh nucleosome together
Going APE
Ehlers Danlos
17. Inhibit formation of the initation complex and cause misreading of mRNA
Aminoglycosides
Thymine has a
Steps in splicing
Proofreading function in eukaryotic RNA
18. Unwinds DNA template at replication fork
helicase
Glycosolation
Exons
Translocation
19. ATP ase that links peripheral 9 doublets and causes bending of cilium by differential sliding of doublets
Sodium K ATPase
Axonemal dyenin
Thymine has a
microtubule
20. Alpha 1 antitrypisn
Double Strand DNA repair
alpha amintin
kinesin
Elastase is inhibited by
21. Ribonucleotide reductase
Ribonucleotides are synthesized first and convertec to deoxyribonuclotides by
mRNA stop codons
Initial transcript without processing is known as
RNA polymerases in eukaryotes
22. 3 H bonds
Xeroderma pigmentosum
Associations of Ehlers Danlos
C- G bond
unambiguous
23. The 5prime end (energy for the bond)
Cyclins
Mismatch repair
Which end of the nucleotide has the triphosphate
kinesin
24. Inhibits the atpase which increases intracellular sodium which increases intracellular calcium increases cardiaccontractility
Double Strand DNA repair
Digoxin (cardiac glycosides)
Step one of RNA processing
The only histone not on the core
25. Made from orogate precuror with PRPP added later
pyrimadines
RNA polymerases in eukaryotes
dyenin
universal
26. RNA polymerase I makes rRNA - RNA pol II makes mRNA - RNA pol III makes tRNA
Smooth ER
Exons
Collagedn synthesis where?
RNA polymerases in eukaryotes
27. GTP
hydroxyurea
methionine is only encoded by
tRNA gripping and going places
Functional organization of the gene
28. Completed protein is released from ribosme through simple hydrolosis and dissociates
Termination
Alternate splicing
Outside the cell what processing must be done in procolalgen
Exons
29. Lysine/hydroxylysine and combines to form collagen
The only histone not on the core
AUG codes For what in prokaryotes
Tropocollagen cross links between_____ to form____
Double Strand DNA repair
30. Aminoacyl - tRNA binds to A site 2) peptidyltransferase catalyzes peptide bond formation transfers growing polypeptie to amino acid in A site 3) ribosome advances 3 nucleotides toward the 3 prime end of RNA moving peptiydyl RNA to P site
Order of mitosis
DNA ligase
tRNA activation
Elongation
31. The 3 prime end
In eukaryotes the starting amino acid is...
Permanent cells
Chloramphenicol
Which end of the tRNA is the amino acid bound to?
32. Be So Totatally Cool Read Books (bOne - CarTWOlage - Threeticular - Type IV under the floor)
Collagen
missense mutation
dyenin
Glycosolation
33. Type III
kinesin
nonsense
silent mutation
What type of collagen is most affected in Ehlers Danlos
34. Does not
RNA processing in eukaryotes occurs
Axonemal dyenin
Enhancers and silencer may be located_____
polyadenylation does/does not require a template
35. Create a nick in the helix to relieve supercoils created during replication
Step one of RNA processing
Griseofulvin
DNA topoisomerases
Functional organization of the gene
36. 5 prime to 3 prime
kinesin
mRNA is syntehsized in which direction?
Which end of the nucleotide has the triphosphate
Digoxin (cardiac glycosides)
37. One codon AUG
transition
tRNA activation
methionine is only encoded by
Double Strand DNA repair
38. Antigout - acts on mts
Cholchicine
microtubule
Gag on pure gold
Replication fork
39. Inhibits ribonucleotide reductase
transition
hydroxyurea
Pyrimidines
Cell cycle
40. Anterograde to microtubule
kinesin
Associations of Ehlers Danlos
dyenin
alpha amintin
41. Cyclin depndent kinases; consituative and inactive
origin of replication
CDKs
Order of mitosis
Double Strand DNA repair
42. Specific glycosylases recognize and remove damaged bases - AP endonuclease cuts DNA at pyrimidne site - empty sugar is removed and the gap is filled and resealed
nucleotide
In eukaryotes the starting amino acid is...
Base excision repair
C- G bond
43. Same aa often base change in 3rd position of codon
capped and tail transcript is called
Elastin is broken down by
silent mutation
Common amino acids in elastin
44. Stretch of DNA that alters gene expression by binding transcription factors
tRNA
Enhancer
Alports syndrome
Prokaryotes
45. Genetic code is conserved throughout evolution
Proteosomal degradation
Associations of Ehlers Danlos
tRNA aminoacylation
universal
46. Epithelial cells
Heterochromatin
cytokeratin
Digoxin (cardiac glycosides)
Collagedn synthesis where?
47. UGA - UAG - UAA
Stable (quiescent)
In eukaryotes the starting amino acid is...
mRNA stop codons
Associations of Ehlers Danlos
48. Checkpoints control transition between phases of cell cycle. regulated by cyclins - CDKs and tumor suppressors. Mitosis (shortest phse)
Free ribosomes
Cell cycle
Primase
Euchromatin
49. Codes for formyl methionine (f - Met)
histone octamer names
purines
Where do introns and exons stay
AUG codes For what in prokaryotes
50. Each codon specifies only 1 amino acid
unambiguous
The only histone not on the core
Sodium K ATPase
single stranded binding proteinds