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Test your basic knowledge |
First Aid: Biochemistry Molecular
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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. Lysine/hydroxylysine and combines to form collagen
Plasma membrane composition
Higher the cholesterol or long saturated fatty acid content
Tropocollagen cross links between_____ to form____
RNA processing in eukaryotes occurs
2. Be So Totatally Cool Read Books (bOne - CarTWOlage - Threeticular - Type IV under the floor)
Purines
Fluoroquinolones
Chediak Higashi syndrome
Collagen
3. Nucleotide excision repair - Base Excision repair - Mismath repair
Nucleotide excision repair
Proteosomal degradation
Loading tRNA on to ribosome energy requirement
Single Strand DNA Repair types
4. Antigout - acts on mts
Cholchicine
Thymine has a
Hydroxylation of which amino acids are attached to Glycine to form collagen
Griseofulvin
5. Base+ribose+phosphate linked by a phosphodiester bond
Base excision repair
unambiguous
hydroxyurea
nucleotide
6. Enter G1 from G0 when stimulated Hepatocytes/lymphocytes
Purines
Eukaroytes
Stable (quiescent)
microtubule
7. Completed protein is released from ribosme through simple hydrolosis and dissociates
Termination
Mismatch repair
Rough ER
AUG codes For what in prokaryotes
8. Prokaryotic only. Elongates leading strand by adding deoxynucleotides to the 3prime end. Elongates laggin strand. 3 prime to 5 prime exonuclease activity
Free ribosomes
DNA pol III
transition
Protein synthesis initiation
9. P53 and RB normally inhibit g1 to S progression
the tRNA- amino acid bond
Proteosomal degradation
Tumor Suppressors
hydroxyurea
10. Change resulting in early stop codon
desmin
Termination
purines
nonsense
11. Prophas - metaphase - anaphase telophase
Mismatch repair
Cilia structure
Clindamycin
Order of mitosis
12. Hn RNA
Gag on pure gold
Sodium K ATPase
Initial transcript without processing is known as
desmin
13. 1P blocked by chloramphenicaol and macrolide
Protein synthesis is in which direction
Post - translational modifications
kinesin
Translocation
14. 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
degenerate or redundant
alpha amintin
Base excision repair
DNA/RNA/Protein syntesis direction
15. Stretch of DNA that alters gene expression by binding transcription factors
Enhancer
transversion
What ties teh nucleosome together
Tropocollagen cross links between_____ to form____
16. Inhibits bacterials dihydrofolate reducatese down thymine
Tumor Suppressors
5FU
Which end of the nucleotide has the triphosphate
trimethoprim
17. Site where RNA polymerase and multiple other transciption factors bind to DNA upstream from gene locus (AT rich upstream sequence with TATA and CAAT boxes)
promoter
Introns
What does the hydroxylation of proline and lysine require
Step Three of RNA processing
18. More than 1 codon may code for the same amino acid
Glycosolation
Total energy expenditure requirement for translocation
Outside the cell what processing must be done in procolalgen
degenerate or redundant
19. Phosphorylation - glycosloation - hyderoxylation
Replication fork
Termination
Covalent alterations
A- T
20. 1 RNA polymerase (multisubunite complex) makes all 3 kinds of RNA
Prokaryote RNA pol
A- T
alpha amintin
frame shift
21. ATP- AMP (2 phosphoanhydride bonds)
Chediak Higashi syndrome
tRNA aminoacylation
Plasma membrane composition
CDKs
22. Bind 50S blocking translocation
Macrolides
silent mutation
Cyclin - CDK
Collagen
23. No proofreading function but can initiate chains. RNA poymerase II opens DNA at promoter site
Proofreading function in eukaryotic RNA
Cell cycle
Elastin
Tumor Suppressors
24. Less condensed - transciptionally active=eu truly transcobed
tRNA aminoacylation
alpha amintin
Type IV collagen is an important structural component of...
Euchromatin
25. Read froma fixed starting point as a continous sequenecs of bases
Pyrimidines
Oubain
Hydroxylation of which amino acids are attached to Glycine to form collagen
commaless - non - overlapping
26. The N to C
Cyclins
Protein synthesis is in which direction
commaless - non - overlapping
Elastase is inhibited by
27. 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
AUG codes For what in prokaryotes
Translocation
Osteogenesis Imperfecta
Elongation
28. Type III
What type of collagen is most affected in Ehlers Danlos
Which end of the nucleotide has the triphosphate
mRNA is syntehsized in which direction?
Chloramphenicol
29. Mutation in nucleotide excision repair Dry skin with melanoma and other cancers
purines
chromatin structure
Post - translational modifications
Xeroderma pigmentosum
30. Blocks denovo purine synthesis
Prokaryote RNA pol
tRNA gripping and going places
Purines
6MP
31. Inhibits ribonucleotide reductase
frame shift
hydroxyurea
transversion
RNA processing in eukaryotes occurs
32. RER translation of collagen alpha chains (preprocollagen) usually Gly-X-Y
Collagedn synthesis where?
Clindamycin
Collagen
commaless - non - overlapping
33. Cilia - glagella - mitotic spindle - neurons - centrioles
CDKs
microtubule
tRNA aminoacylation
Free ribosomes
34. 3 H bonds
C- G bond
DNA topoisomerases
Primase
frame shift
35. Three amino acids necessary for purine synthesis= glutamine - aspartate and glycine
Common amino acids in elastin
Gag on pure gold
5FU
aminoacyl - tRNA synthetase and binding of charged tRNA to the codon
36. 9+2 arrangement of microtubules -
Outside the cell what processing must be done in procolalgen
helicase
Cilia structure
Nucleotide excision repair
37. Uracil
origin of replication
Proofreading function in eukaryotic RNA
Deamination of cytosine makes
Which end of a growing DNA strand is the target
38. Immotile cilia due to a dyenin arm defect. Results in male nad female inferticility (sperm immotile) - bronchiectasis - and recurrent sinusisits - associated with situs inversus
commaless - non - overlapping
mRNA start codons
DNA ligase
Kartageners syndrome
39. MRNA
CDKs
capped and tail transcript is called
What type of collagen is most affected in Ehlers Danlos
Step Three of RNA processing
40. Neurons
Neurofilaments
Elastin is broken down by
Total energy expenditure requirement for translocation
Cyclins
41. Ribonucleotide reductase
DNA ligase
Ribonucleotides are synthesized first and convertec to deoxyribonuclotides by
Order of mitosis
Higher the cholesterol or long saturated fatty acid content
42. RNA polymerase I makes rRNA - RNA pol II makes mRNA - RNA pol III makes tRNA
cytokeratin
RNA polymerases in eukaryotes
commaless - non - overlapping
CDKs
43. Specific endonucleases release the oligonucleotide containing damaged bases. DNA polymerase and logase fill and resealt eh gap
RNA processing in eukaryotes occurs
the tRNA- amino acid bond
transversion
Nucleotide excision repair
44. Accurate base pairing is required only in the first 2 nucleotide positions of an mRNA so codons differing ht e3rd wobble psoition may code for the same tRNA/amino acid code
tRNA
actin and myosin
Nucleotide excision repair
Vincristine/Vinblastine
45. Proline - glycine
Common amino acids in elastin
Protein synthesis initiation
DNA pol I
mRNA is syntehsized in which direction?
46. Poly adenylation
Step Three of RNA processing
pyrimadines
step two of RNA processing
capped and tail transcript is called
47. Create a nick in the helix to relieve supercoils created during replication
methionine is only encoded by
DNA topoisomerases
step two of RNA processing
Chediak Higashi syndrome
48. ATP
Mismatch repair
tRNA activation
Mebendazole/thiabendazole
Replication fork
49. 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
hydroxyurea
Excocytosis of collagen
RNA polymerases in eukaryotes
Osteogenesis Imperfecta
50. DNA And RNA synthesized in the 5-3 direction
DNA/RNA/Protein syntesis direction
Deamination of cytosine makes
Mebendazole/thiabendazole
Plasma membrane composition
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