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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. Uracil
Deamination of cytosine makes
Cholchicine
Permanent cells
Type IV collagen is an important structural component of...
2. Splicing out of introns
Step Three of RNA processing
Eukaroytes
Exons
Glycosolation
3. 3 H bonds
Chloramphenicol
intermediate filaments
C- G bond
Covalent alterations
4. Hydroxy proline and hydroxylysine
Molecular motor protiesn
Fluoroquinolones
Alports syndrome
Hydroxylation of which amino acids are attached to Glycine to form collagen
5. RER translation of collagen alpha chains (preprocollagen) usually Gly-X-Y
C- G bond
Covalent alterations
Collagedn synthesis where?
AUG codes For what in prokaryotes
6. Rampant - Massive - TIny rRNA is most common - then mRNA and then tRNA
Permanent cells
frame shift
Which is the most and least abundant type of RNA
Initial transcript without processing is known as
7. Microvilli - muscle contraction - cytokinesis - adhering juntions
Alternate splicing
actin and myosin
Digoxin (cardiac glycosides)
Example of permanent cells
8. Introns stay In the nucleus whereas EXons EXit and are EXpressed
tRNA aminoacylation
Fluoroquinolones
aminoacyl - tRNA synthetase and binding of charged tRNA to the codon
Where do introns and exons stay
9. 2 H bonds greater GC content greater melting point
tRNA aminoacylation
A- T
Kartageners syndrome
mRNA stop codons
10. Odd 30S plus 50 S=70S
Total energy expenditure requirement for translocation
missense mutation
trimethoprim
Prokaryotes
11. Be So Totatally Cool Read Books (bOne - CarTWOlage - Threeticular - Type IV under the floor)
C- G bond
Ribonucleotides are synthesized first and convertec to deoxyribonuclotides by
Collagen
Functional organization of the gene
12. Mutation in nucleotide excision repair Dry skin with melanoma and other cancers
The only histone not on the core
Xeroderma pigmentosum
capped and tail transcript is called
Primase
13. HS1 - HSB - H2 - H4
Steps in splicing
DNA pol I
In eukaryotes the starting amino acid is...
histone octamer names
14. Makes an RNA primer on which DNA polymerase II can initiate replication
Mismatch repair
Primase
Ehlers Danlos
mRNA start codons
15. (A - G) 2 rings Pure As Gold
Purines
Common amino acids in elastin
transition
unambiguous
16. Lysine/hydroxylysine and combines to form collagen
nucleotide
Tropocollagen cross links between_____ to form____
Associations of Ehlers Danlos
DNA/RNA/Protein syntesis direction
17. Elastase
Elastin is broken down by
unambiguous
cytokeratin
Silencer
18. Inhibit DNA gyrase (specific prokaryotic topoisomerase)
Collagen
transition
Where do introns and exons stay
Fluoroquinolones
19. Prokaryotic only. Elongates leading strand by adding deoxynucleotides to the 3prime end. Elongates laggin strand. 3 prime to 5 prime exonuclease activity
Single Strand DNA Repair types
promoter
DNA pol III
Aminoacylt - tRNA synthetase
20. Inhibits the atpase which increases intracellular sodium which increases intracellular calcium increases cardiaccontractility
DNA pol III
hydroxyurea
Digoxin (cardiac glycosides)
microtubule
21. Epithelial cells
Aminoacylt - tRNA synthetase
Proteosomal degradation
Sodium K ATPase
cytokeratin
22. Checkpoints control transition between phases of cell cycle. regulated by cyclins - CDKs and tumor suppressors. Mitosis (shortest phse)
Initial transcript without processing is known as
Paclitaxil
Cell cycle
Thymine has a
23. Neurons
Exons
Clindamycin
Neurofilaments
Xeroderma pigmentosum
24. Inhibits by binding to the potassium side
Oubain
Which end of the nucleotide has the triphosphate
Aminoacylt - tRNA synthetase
Cyclins
25. Does not
polyadenylation does/does not require a template
Xeroderma pigmentosum
Primase
Oubain
26. GTP
Aminoglycosides
tRNA gripping and going places
Guanine has a
mRNA is syntehsized in which direction?
27. Site of secretory protiens (mucus secreting goblet cells and antibody secreting cells)
dyenin
Which is the most and least abundant type of RNA
Rough ER
intermediate filaments
28. One codon AUG
chromatin structure
transversion
methionine is only encoded by
universal
29. Cyclin depndent kinases; consituative and inactive
Introns
CDKs
Labile
commaless - non - overlapping
30. Inhibits dihydrofolate reductase down thymine
Clindamycin
Methotrexate
frame shift
Molecular motor protiesn
31. Has enough energy to created the peptide bond
the tRNA- amino acid bond
RNA processing in eukaryotes occurs
single stranded binding proteinds
White codon is at the 3 prime end of a tRNA
32. Cilia - glagella - mitotic spindle - neurons - centrioles
Higher the cholesterol or long saturated fatty acid content
microtubule
dyenin
DNA pol III
33. Prokaryotic only. Degrades RNA primer and fills in the gap with DNA (5 prime to 3 prime exonuclease)
In eukaryotes the starting amino acid is...
Loading tRNA on to ribosome energy requirement
DNA pol I
Going APE
34. Asymmetric fluid bilayer - contains - cholesterol - phospholipids - sphingoplipids - glycolipids - and protiends
single stranded binding proteinds
transition
hydroxyurea
Plasma membrane composition
35. Three amino acids necessary for purine synthesis= glutamine - aspartate and glycine
Osteogenesis Imperfecta
Functional organization of the gene
Gag on pure gold
Glycosolation
36. Antigout - acts on mts
Initial transcript without processing is known as
Cholchicine
Tumor Suppressors
mRNA start codons
37. A site - incoming aminoacyl tRNA - Psite accomodates growing Peptide - E site holds EmplytRNA as it exits
Going APE
RNA processing in eukaryotes occurs
Protein synthesis is in which direction
Cell cycle
38. Never go to Go divide rapidly with short G1 bone marrow - gut epithelium - skin - hair follicles
Labile
Vincristine/Vinblastine
Heterochromatin
Protein synthesis is in which direction
39. Different exons can be combined to make nique protiens in different times
Hereditary non polyposis colorectal cancer
Alternate splicing
Higher the cholesterol or long saturated fatty acid content
Non homologous end joining
40. Remain in G0 regenerate from stem cells
Step one of RNA processing
Type IV collagen is an important structural component of...
Permanent cells
Silencer
41. The N to C
Covalent alterations
Protein synthesis is in which direction
Type IV collagen is an important structural component of...
microtubule
42. Attachment of ubiquitin to defective proteinds to tag them for breakdown
Tropocollagen cross links between_____ to form____
Proteosomal degradation
Smooth ER
Example of permanent cells
43. Even 40S 60S =80S
Which is the most and least abundant type of RNA
Eukaroytes
Type IV collagen is an important structural component of...
actin and myosin
44. P53 and RB normally inhibit g1 to S progression
mRNA start codons
Tumor Suppressors
Paclitaxil
Neurofilaments
45. 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/RNA/Protein syntesis direction
Elongation
Smooth ER
46. Blocks denovo purine synthesis
Heterochromatin
kinesin
6MP
actin and myosin
47. Codes for formyl methionine (f - Met)
Loading tRNA on to ribosome energy requirement
Post - translational modifications
cytokeratin
AUG codes For what in prokaryotes
48. Scrutinizes aa before and after it binds to tRNA. If incorrect bond is hydrolyzed.
Tetracyclines
Glycosolation
tRNA
Aminoacylt - tRNA synthetase
49. Intervening noncoding segments of DNA
Translocation
Permanent cells
Introns
nonsense
50. Change resulting in misreading of all nucleotides downstream - usually resulting in a truncated non functional protien
Elastin
frame shift
Methotrexate
desmin
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