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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. Enter G1 from G0 when stimulated Hepatocytes/lymphocytes
Higher the cholesterol or long saturated fatty acid content
actin and myosin
Stable (quiescent)
helicase
2. Faulty collagen synthesis causing 1) hyperextensible skin 2) tendency to bleed 3) hypermobile joints
alpha amintin
Ehlers Danlos
Cyclin - CDK
Macrolides
3. Microtubule polymerization defect resulting in lowered phagocytosis. results in recurrent pyogenic infections - partial albinism and peripheral neuropathy
nucleotide
chromatin structure
methionine is only encoded by
Chediak Higashi syndrome
4. Methyl THYmine has a meTHYl
cytokeratin
Cell cycle order
the tRNA- amino acid bond
Thymine has a
5. Same aa often base change in 3rd position of codon
chromatin structure
A- T
Axonemal dyenin
silent mutation
6. Inhibits by binding to the potassium side
Single Strand DNA Repair types
Oubain
chromatin structure
Common amino acids in elastin
7. Cylindrical structure composed of helical array of plymerized dimers of alpha and beta tubulin - flagella - cilia - mitotic spindle - grows slowly collapses quickly
helicase
Initial transcript without processing is known as
Step one of RNA processing
microtubule
8. Makes an RNA primer on which DNA polymerase II can initiate replication
RNA polymerases in eukaryotes
alpha amintin
Primase
Hydroxylation of which amino acids are attached to Glycine to form collagen
9. 4 high enrgy bonds
DNA ligase
In eukaryotes the starting amino acid is...
Total energy expenditure requirement for translocation
Tropocollagen cross links between_____ to form____
10. Exocytose procollagen into extracellylar sace
Collagedn synthesis where?
5FU
Aminoacylt - tRNA synthetase
Excocytosis of collagen
11. Seals
universal
DNA ligase
missense mutation
Digoxin (cardiac glycosides)
12. 1 RNA polymerase (multisubunite complex) makes all 3 kinds of RNA
capped and tail transcript is called
Cyclins
Prokaryote RNA pol
Tumor Suppressors
13. Y shaped region along DNA template where leading and lagging strands are syntehsized
Free ribosomes
A- T
Replication fork
Thymine has a
14. Never go to Go divide rapidly with short G1 bone marrow - gut epithelium - skin - hair follicles
Labile
Osteogenesis Imperfecta
transversion
Hydroxylation of which amino acids are attached to Glycine to form collagen
15. 9+2 arrangement of microtubules -
Loading tRNA on to ribosome energy requirement
microtubule
Cilia structure
RNA processing in eukaryotes occurs
16. Base + ribose
Smooth ER
nucleosid
Which end of a growing DNA strand is the target
tRNA activation
17. (A - G) 2 rings Pure As Gold
Elastase is inhibited by
Permanent cells
Nucleotide excision repair
Purines
18. Completed protein is released from ribosme through simple hydrolosis and dissociates
Macrolides
Digoxin (cardiac glycosides)
Non homologous end joining
Termination
19. 75-90 nucleotides - 2ary structure cloverleaf form anticodon end is opposite 3 prime aminoacyl end
CDKs
Replication fork
Outside the cell what processing must be done in procolalgen
tRNA Structure
20. Stretch of DNA that alters gene expression by binding transcription factors
helicase
Enhancer
Hereditary non polyposis colorectal cancer
Loading tRNA on to ribosome energy requirement
21. Vimentin - desmin - cytockeratin - glial fibrillary acid proteins - neurofilaments
DNA pol III
methionine is only encoded by
Collagen
intermediate filaments
22. Prevents stranges from reannealing
Excocytosis of collagen
single stranded binding proteinds
Nucleotide excision repair
Which end of the tRNA is the amino acid bound to?
23. UGA - UAG - UAA
Type IV collagen is an important structural component of...
Promoter mutation
mRNA stop codons
Protein synthesis initiation
24. Type III
Example of permanent cells
What type of collagen is most affected in Ehlers Danlos
Cilia structure
Elastin is broken down by
25. Odd 30S plus 50 S=70S
Prokaryotes
helicase
Deamination of cytosine makes
AUG codes For what in prokaryotes
26. Trimming removal of n or c terminal propeptides from zymogens to generate mature proteinds
Which end of a growing DNA strand is the target
Macrolides
Griseofulvin
Post - translational modifications
27. Elastase
Cyclins
Proofreading function in eukaryotic RNA
Elastin is broken down by
Methotrexate
28. Each codon specifies only 1 amino acid
Heterochromatin
Primase
unambiguous
RNA processing in eukaryotes occurs
29. Hn RNA
C- G bond
Initial transcript without processing is known as
methionine is only encoded by
Immunohistochemical stains vimentin
30. Activated by GTP hydrolosis initiation factors help assembel the 40 S ribosomal subunites with the initiatior tRNA and are released whent he mRNA and the ribosomal subunit assemple with the complex
microtubule
Protein synthesis initiation
Labile
Primase
31. No proofreading function but can initiate chains. RNA poymerase II opens DNA at promoter site
Proofreading function in eukaryotic RNA
capped and tail transcript is called
mRNA is syntehsized in which direction?
Ribonucleotides are synthesized first and convertec to deoxyribonuclotides by
32. Inhibit formation of the initation complex and cause misreading of mRNA
Steps in splicing
Elastase is inhibited by
Aminoglycosides
Nucleotide excision repair
33. RNA polymerase I makes rRNA - RNA pol II makes mRNA - RNA pol III makes tRNA
RNA polymerases in eukaryotes
Alternate splicing
Eukaroytes
Molecular motor protiesn
34. Base+ribose+phosphate linked by a phosphodiester bond
Introns
CDKs
nucleotide
Smooth ER
35. Inhibits 50S peptidyl transferase
GFAP
Chloramphenicol
DNA/RNA/Protein syntesis direction
tRNA activation
36. 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
Hereditary non polyposis colorectal cancer
Base excision repair
nucleotide
Covalent alterations
37. You glyucosolate hte pro - alpha chain lysine resudens and form procollagen (triple helix of alpha chains)
Rough ER
Post - translational modifications
Double Strand DNA repair
Glycosolation
38. Introns stay In the nucleus whereas EXons EXit and are EXpressed
Where do introns and exons stay
Stable (quiescent)
purines
Associations of Ehlers Danlos
39. Cilia - glagella - mitotic spindle - neurons - centrioles
microtubule
Smooth ER
Heterochromatin
Single Strand DNA Repair types
40. CCA AT 3 PRIME END
White codon is at the 3 prime end of a tRNA
frame shift
kinesin
Which end of the nucleotide has the triphosphate
41. 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)
Fluoroquinolones
promoter
Proofreading function in eukaryotic RNA
Gag on pure gold
42. 1P (blocked by tetracycline)
DNA/RNA/Protein syntesis direction
Going APE
Loading tRNA on to ribosome energy requirement
Functional organization of the gene
43. Specific endonucleases release the oligonucleotide containing damaged bases. DNA polymerase and logase fill and resealt eh gap
Chediak Higashi syndrome
Alports syndrome
Nucleotide excision repair
Type IV collagen is an important structural component of...
44. Hydroxy proline and hydroxylysine
kinesin
Hydroxylation of which amino acids are attached to Glycine to form collagen
Guanine has a
Which end of the tRNA is the amino acid bound to?
45. ATP
tRNA activation
polyadenylation does/does not require a template
Alports syndrome
Protein synthesis initiation
46. Substituting a pyramidine for a pyrimadine
pyrimadines
DNA topoisomerases
transition
Order of mitosis
47. Unmethylated - newly synthesized string is recognized - mismatched nucleotides are removed and the gap is filled and resealed
Prokaryotes
Macrolides
Mismatch repair
Promoter mutation
48. Site of dteroid synthesis and detoxification of druigs and poisons (liver hepatocytes and steroid horomore adrenal cortex)
Vincristine/Vinblastine
capped and tail transcript is called
Smooth ER
Aminoacylt - tRNA synthetase
49. Negatively charged DNA loops twice around histone octamers create a nucloesome bead.
Tropocollagen cross links between_____ to form____
polyadenylation does/does not require a template
chromatin structure
degenerate or redundant
50. Be So Totatally Cool Read Books (bOne - CarTWOlage - Threeticular - Type IV under the floor)
Oubain
Collagen
GFAP
chromatin structure