SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
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. Substituting a purine for a pyrimdine or vice versa
tRNA Structure
Molecular motor protiesn
transversion
5FU
2. Tansport cellular cargo toward opposite ends of microtubule tracks
Free ribosomes
Molecular motor protiesn
dyenin
A- T
3. Inhibits thymidylate synthase down thymine
Total energy expenditure requirement for translocation
DNA/RNA/Protein syntesis direction
5FU
Aminoglycosides
4. More than 1 codon may code for the same amino acid
degenerate or redundant
What does the hydroxylation of proline and lysine require
Step one of RNA processing
Which is the most and least abundant type of RNA
5. Asymmetric fluid bilayer - contains - cholesterol - phospholipids - sphingoplipids - glycolipids - and protiends
mRNA stop codons
trimethoprim
AUG codes For what in prokaryotes
Plasma membrane composition
6. Anti breast cancer - acts on mts
What ties teh nucleosome together
Paclitaxil
Single Strand DNA Repair types
trimethoprim
7. Xlinked recessive IV collagen bm - kidney - ear and eye -- nephritis and defness ocular disturbances
purines
Total energy expenditure requirement for translocation
Alports syndrome
Exons
8. Y shaped region along DNA template where leading and lagging strands are syntehsized
Steps in splicing
Excocytosis of collagen
Replication fork
Cyclins
9. Muscle
Xeroderma pigmentosum
Elongation
cytokeratin
desmin
10. Prokaryotic only. Degrades RNA primer and fills in the gap with DNA (5 prime to 3 prime exonuclease)
AUG codes For what in prokaryotes
Cell cycle order
A- T
DNA pol I
11. Exocytose procollagen into extracellylar sace
Fluoroquinolones
Higher the cholesterol or long saturated fatty acid content
Base excision repair
Excocytosis of collagen
12. Checkpoints control transition between phases of cell cycle. regulated by cyclins - CDKs and tumor suppressors. Mitosis (shortest phse)
Cell cycle
Mebendazole/thiabendazole
Termination
C- G bond
13. Inhibits bacterials dihydrofolate reducatese down thymine
trimethoprim
Loading tRNA on to ribosome energy requirement
frame shift
Cell cycle order
14. Negatively charged DNA loops twice around histone octamers create a nucloesome bead.
chromatin structure
Griseofulvin
What type of collagen is most affected in Ehlers Danlos
Paclitaxil
15. Promoter - enhancer - promoter - TATA- transcription initiation site - coding region (including exons and introns) and then the AATAAA
single stranded binding proteinds
purines
Step Three of RNA processing
Functional organization of the gene
16. Unattached to any membrane; site of cytosolic and organeller prtoeins
AUG codes For what in prokaryotes
Steps in splicing
histone octamer names
Free ribosomes
17. AD and AR- associated iwth joint dislocation - berry aneurysms - organ rupture
kinesin
Labile
mRNA is syntehsized in which direction?
Associations of Ehlers Danlos
18. Less condensed - transciptionally active=eu truly transcobed
Oubain
Euchromatin
Which end of a growing DNA strand is the target
the tRNA- amino acid bond
19. Hydroxy proline and hydroxylysine
Primase
Hydroxylation of which amino acids are attached to Glycine to form collagen
6MP
Termination
20. HS1 - HSB - H2 - H4
chromatin structure
Labile
alpha amintin
histone octamer names
21. Capping on 5 prime end (7 methylguanosine) -
Eukaroytes
Step one of RNA processing
Prokaryotes
In eukaryotes the starting amino acid is...
22. 3 sodium out for 2 potassium in (nout - kin)takes 1 atp and the machine is phosphorylated during the machine cycle
unambiguous
Macrolides
Griseofulvin
Sodium K ATPase
23. Cyclin depndent kinases; consituative and inactive
Proteosomal degradation
Termination
CDKs
tRNA
24. CCA AT 3 PRIME END
nucleosid
Molecular motor protiesn
White codon is at the 3 prime end of a tRNA
Collagedn synthesis where?
25. Genetic bone disorder (brittle bone disease) type 1 colalgen - fractures (during birth) 2) Blue sclerae 3) hearing loss 4) dental imperfections 1:10000 may be confused with child abuse
methionine is only encoded by
Osteogenesis Imperfecta
actin and myosin
Tetracyclines
26. Particular sequnece in genomre where DNA replication begins. May be single (prokaryotes) or multiple (eukaryotes)
Elastase is inhibited by
Alternate splicing
origin of replication
Introns
27. Unmethylated - newly synthesized string is recognized - mismatched nucleotides are removed and the gap is filled and resealed
Immunohistochemical stains vimentin
Cyclin - CDK
Mismatch repair
promoter
28. 75-90 nucleotides - 2ary structure cloverleaf form anticodon end is opposite 3 prime aminoacyl end
Cholchicine
pyrimadines
tRNA Structure
Fluoroquinolones
29. Never go to Go divide rapidly with short G1 bone marrow - gut epithelium - skin - hair follicles
the tRNA- amino acid bond
Labile
Deamination of cytosine makes
Collagedn synthesis where?
30. Responsible for the accuracy of amino acid selection
Where do introns and exons stay
aminoacyl - tRNA synthetase and binding of charged tRNA to the codon
Osteogenesis Imperfecta
Stable (quiescent)
31. Binds 50S blocking translocation
chromatin structure
Clindamycin
Collagen
Tumor Suppressors
32. Prokaryotic only. Elongates leading strand by adding deoxynucleotides to the 3prime end. Elongates laggin strand. 3 prime to 5 prime exonuclease activity
Methotrexate
6MP
Loading tRNA on to ribosome energy requirement
DNA pol III
33. 1P blocked by chloramphenicaol and macrolide
Enhancers and silencer may be located_____
Enhancer
Translocation
Free ribosomes
34. Blocks denovo purine synthesis
6MP
Tropocollagen cross links between_____ to form____
Digoxin (cardiac glycosides)
Gag on pure gold
35. Completed protein is released from ribosme through simple hydrolosis and dissociates
Termination
RNA processing in eukaryotes occurs
Clindamycin
tRNA Structure
36. Inhibits 50S peptidyl transferase
The only histone not on the core
Chloramphenicol
Glycosolation
White codon is at the 3 prime end of a tRNA
37. Different exons can be combined to make nique protiens in different times
Molecular motor protiesn
DNA topoisomerases
Xeroderma pigmentosum
Alternate splicing
38. Does not
Stable (quiescent)
What does the hydroxylation of proline and lysine require
polyadenylation does/does not require a template
tRNA Structure
39. Stretch of DNA that alters gene expression by binding transcription factors
White codon is at the 3 prime end of a tRNA
promoter
Enhancer
Mismatch repair
40. 1 RNA polymerase (multisubunite complex) makes all 3 kinds of RNA
Order of mitosis
DNA topoisomerases
Prokaryote RNA pol
Common amino acids in elastin
41. Ribonucleotide reductase
5FU
Initial transcript without processing is known as
kinesin
Ribonucleotides are synthesized first and convertec to deoxyribonuclotides by
42. Specific endonucleases release the oligonucleotide containing damaged bases. DNA polymerase and logase fill and resealt eh gap
Tetracyclines
Paclitaxil
Nucleotide excision repair
missense mutation
43. The 3 prime end
Which end of the tRNA is the amino acid bound to?
Going APE
Elongation
Which end of the nucleotide has the triphosphate
44. Inhbits RNA pol II (found in death cap mushrooms)
alpha amintin
Steps in splicing
Which end of a growing DNA strand is the target
Eukaroytes
45. Methyl THYmine has a meTHYl
tRNA gripping and going places
Alports syndrome
Tetracyclines
Thymine has a
46. H1
The only histone not on the core
Initial transcript without processing is known as
Proteosomal degradation
Aminoacylt - tRNA synthetase
47. Prophas - metaphase - anaphase telophase
Order of mitosis
Cell cycle
Introns
Aminoacylt - tRNA synthetase
48. Prevents stranges from reannealing
microtubule
Single Strand DNA Repair types
single stranded binding proteinds
step two of RNA processing
49. AUG inAUGurates protein synthesis
Primase
mRNA start codons
kinesin
Elastin
50. The N to C
Smooth ER
Deamination of cytosine makes
Neurofilaments
Protein synthesis is in which direction