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Test your basic knowledge |
First Aid: Biochemistry Molecular
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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. Regulatory proteins that control cell cycle events; phase specific; activated CDKs
Gag on pure gold
Cyclins
RNA processing in eukaryotes occurs
Step one of RNA processing
2. ATP
unambiguous
Guanine has a
tRNA activation
Which end of the tRNA is the amino acid bound to?
3. Base+ribose+phosphate linked by a phosphodiester bond
Chediak Higashi syndrome
Protein synthesis initiation
Neurofilaments
nucleotide
4. Different exons can be combined to make nique protiens in different times
Alternate splicing
Exons
Total energy expenditure requirement for translocation
Neurofilaments
5. Genetic code is conserved throughout evolution
DNA pol I
universal
transition
Smooth ER
6. Negatively charged DNA loops twice around histone octamers create a nucloesome bead.
Prokaryotes
chromatin structure
Axonemal dyenin
tRNA Structure
7. The 3 prime end
transversion
Single Strand DNA Repair types
Which end of the tRNA is the amino acid bound to?
Hydroxylation of which amino acids are attached to Glycine to form collagen
8. Never go to Go divide rapidly with short G1 bone marrow - gut epithelium - skin - hair follicles
DNA/RNA/Protein syntesis direction
Labile
Associations of Ehlers Danlos
CDKs
9. Neurons - skeletal - and cardiac muscle - RBCs
Eukaroytes
Alternate splicing
Osteogenesis Imperfecta
Example of permanent cells
10. DNA And RNA synthesized in the 5-3 direction
DNA pol III
Replication fork
DNA/RNA/Protein syntesis direction
Type IV collagen is an important structural component of...
11. Microtubule polymerization defect resulting in lowered phagocytosis. results in recurrent pyogenic infections - partial albinism and peripheral neuropathy
Chediak Higashi syndrome
Covalent alterations
Vincristine/Vinblastine
Eukaroytes
12. Scrutinizes aa before and after it binds to tRNA. If incorrect bond is hydrolyzed.
the tRNA- amino acid bond
Oubain
Aminoacylt - tRNA synthetase
Glycosolation
13. Unmethylated - newly synthesized string is recognized - mismatched nucleotides are removed and the gap is filled and resealed
Mismatch repair
Step Three of RNA processing
Proteosomal degradation
Fluoroquinolones
14. Nucleotide excision repair - Base Excision repair - Mismath repair
actin and myosin
DNA/RNA/Protein syntesis direction
Single Strand DNA Repair types
Clindamycin
15. Microvilli - muscle contraction - cytokinesis - adhering juntions
kinesin
Chloramphenicol
intermediate filaments
actin and myosin
16. Particular sequnece in genomre where DNA replication begins. May be single (prokaryotes) or multiple (eukaryotes)
origin of replication
Osteogenesis Imperfecta
Purines
Elastin
17. AUG inAUGurates protein synthesis
promoter
Smooth ER
mRNA start codons
AUG codes For what in prokaryotes
18. Changed aaconservative - new aa is similar in chemical structure
Step one of RNA processing
Prokaryote RNA pol
missense mutation
pyrimadines
19. Cylindrical structure composed of helical array of plymerized dimers of alpha and beta tubulin - flagella - cilia - mitotic spindle - grows slowly collapses quickly
Chediak Higashi syndrome
Thymine has a
microtubule
Example of permanent cells
20. Commonly results in dramatic decrease in amount of gene transcribed
Step one of RNA processing
aminoacyl - tRNA synthetase and binding of charged tRNA to the codon
Promoter mutation
tRNA gripping and going places
21. Seals
DNA ligase
Total energy expenditure requirement for translocation
Which is the most and least abundant type of RNA
Elastin
22. Capping on 5 prime end (7 methylguanosine) -
silent mutation
Step one of RNA processing
C- G bond
DNA pol III
23. Inhibits by binding to the potassium side
6MP
Oubain
Step one of RNA processing
AUG codes For what in prokaryotes
24. Anit helminth - act on microtubules
Mebendazole/thiabendazole
Elastin
White codon is at the 3 prime end of a tRNA
Which is the most and least abundant type of RNA
25. Inhibits the atpase which increases intracellular sodium which increases intracellular calcium increases cardiaccontractility
unambiguous
helicase
Digoxin (cardiac glycosides)
Cyclin - CDK
26. ATP- AMP (2 phosphoanhydride bonds)
tRNA aminoacylation
Non homologous end joining
Base excision repair
Pyrimidines
27. Attachment of ubiquitin to defective proteinds to tag them for breakdown
Proteosomal degradation
Cell cycle
GFAP
Functional organization of the gene
28. Prokaryotic only. Degrades RNA primer and fills in the gap with DNA (5 prime to 3 prime exonuclease)
Neurofilaments
C- G bond
DNA pol I
DNA pol III
29. Binds 50S blocking translocation
unambiguous
Clindamycin
Cholchicine
capped and tail transcript is called
30. Non homologous end joining
Double Strand DNA repair
actin and myosin
Cell cycle
Alports syndrome
31. Promoter - enhancer - promoter - TATA- transcription initiation site - coding region (including exons and introns) and then the AATAAA
Functional organization of the gene
DNA/RNA/Protein syntesis direction
Alports syndrome
What ties teh nucleosome together
32. Tansport cellular cargo toward opposite ends of microtubule tracks
In eukaryotes the starting amino acid is...
Silencer
Molecular motor protiesn
step two of RNA processing
33. Odd 30S plus 50 S=70S
Prokaryotes
Cyclin - CDK
capped and tail transcript is called
degenerate or redundant
34. Has enough energy to created the peptide bond
Proofreading function in eukaryotic RNA
microtubule
Neurofilaments
the tRNA- amino acid bond
35. Codes for formyl methionine (f - Met)
Which is the most and least abundant type of RNA
Enhancers and silencer may be located_____
AUG codes For what in prokaryotes
Step one of RNA processing
36. 75-90 nucleotides - 2ary structure cloverleaf form anticodon end is opposite 3 prime aminoacyl end
Free ribosomes
tRNA Structure
Protein synthesis initiation
nucleotide
37. Inhibit formation of the initation complex and cause misreading of mRNA
Aminoglycosides
Base excision repair
Smooth ER
DNA topoisomerases
38. 1P (blocked by tetracycline)
Loading tRNA on to ribosome energy requirement
Vincristine/Vinblastine
Eukaroytes
Fluoroquinolones
39. Each codon specifies only 1 amino acid
Osteogenesis Imperfecta
unambiguous
step two of RNA processing
Which is the most and least abundant type of RNA
40. Contain the actual genetic information coding for protein
Paclitaxil
Exons
Which end of a growing DNA strand is the target
Cell cycle
41. Greater melting temperature lower fluidity
Higher the cholesterol or long saturated fatty acid content
Which end of the nucleotide has the triphosphate
Elastin
mRNA stop codons
42. Intervening noncoding segments of DNA
Introns
actin and myosin
frame shift
Osteogenesis Imperfecta
43. Be So Totatally Cool Read Books (bOne - CarTWOlage - Threeticular - Type IV under the floor)
Post - translational modifications
Collagen
frame shift
Euchromatin
44. Anterograde to microtubule
kinesin
Plasma membrane composition
desmin
actin and myosin
45. Close to - far from or even within (in an intron) the gene whose expression it regulates
Vincristine/Vinblastine
Cilia structure
Loading tRNA on to ribosome energy requirement
Enhancers and silencer may be located_____
46. Asymmetric fluid bilayer - contains - cholesterol - phospholipids - sphingoplipids - glycolipids - and protiends
DNA topoisomerases
Purines
Order of mitosis
Plasma membrane composition
47. Create a nick in the helix to relieve supercoils created during replication
DNA/RNA/Protein syntesis direction
Osteogenesis Imperfecta
DNA topoisomerases
What type of collagen is most affected in Ehlers Danlos
48. Site where negative regulators bind
Cyclins
Ehlers Danlos
Enhancers and silencer may be located_____
Silencer
49. The N to C
Introns
Cilia structure
Protein synthesis is in which direction
Oubain
50. No proofreading function but can initiate chains. RNA poymerase II opens DNA at promoter site
Silencer
tRNA
Proofreading function in eukaryotic RNA
C- G bond
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