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Test your basic knowledge |
DSST Biochemistry 2
Start Test
Study First
Subjects
:
dsst
,
science
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. Stop free radicals from damaging cells - helps O trap e-
Electronegativity
PORIN
Transcription
Antioxidants
2. Cuts the introns out of mRNA
Palindrome
SPIRILLI
Polypeptide
Ribozymes
3. Purine adenine - ribose and 3 phosphates
ATP
RNA polymerase
LAC Operon
Anabolic
4. Non-coding regions on mRNA
HYDROPHOBIC
PORIN
Introns
POLYSACCHARIDE
5. 'chain'
Ligase
Anabolic
Release factor
STREPT
6. One of the four bases in mRNA (replaces thymine)
Gram Positive
Uracil
Peptide bond
RNA polymerase
7. LPS layer of a Gram Negative bacterium
OUTER MEMBRANE
PROKARYOTE
STREPT
Lactose
8. Bonds between NAG and NAM
Phosphorolation
Catabolic
Methionine
TETRAPEPTIDE CROSS LINK
9. Protein that makes RNA primers and makes mRNA from DNA
GRAM NEGATIVE
LIPOPOLYSACCHARIDE
tRNA
RNA polymerase
10. Where RNA polymerase starts
5' - 3'
Operator
Hershey and Chase
GAPDH
11. Break down of molecules
HYDROPHILIC
Chargaff
Catabolic
Gram Positive
12. Released from a lipopolysaccharide in a Gram - bacterium
ENDOTOXIN
DNA polymerase I
Phosphorolation
Oxidation
13. The codon on tRNA that matches up with and attaches to a codon on mRNA
Iodine
Anticodon
Antioxidants
Lagging Strand
14. Has 2 layers CW - CM
Electronegativity
OUTER MEMBRANE
Primer
Gram Positive
15. Keeps the DNA strands separated
Single Stranded Binding Protein
LAC Operon
OUTER MEMBRANE
Crystal Violet
16. 'water fearing' (non polar molecules) ie. Lipid tail
POLYSACCHARIDE
Ribosomes
HYDROPHOBIC
Catabolic
17. Removes Crystal Violet color from the gram negative bacteria
Alcohol
SPIRILLI
Anabolic
NAG & NAM
18. How strong a molecule/atom can pull e-
Electronegativity
Codon
Restriction Enzyme
Reduction
19. Bacteria cell that contains: OM - CW - periplamic space - & CM
5' - 3'
PERIPLASM
GRAM NEGATIVE
Affinity
20. Gain of e-
Crystal Violet
LIPID
Transcription
Reduction
21. Location of transcription
POLYSACCHARIDE
Nucleus
Affinity
TETRAPEPTIDE CROSS LINK
22. Lagging strand
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23. Lays down DNA nucleotides
Gram Negative
DNA Polymerase III
Tata box
Reduction
24. It is the two single stranded regions of DNA that is being replicated
PHOSPHATE
PERIPLASM
Replication fork
LAC Operon
25. Series of amino acids held together by peptide bonds
Leading strand
Protein
PHOSPHATE
NAD+
26. NAD+ and a hydrogen - e- carrier
Catabolic
G3P
NADH
LIPID A
27. Comma shaped
PERIPLASM
COMMA
ARCHAEA
Lagging Strand
28. Stains the LPS of the gram negative bacteria
Endergonic
Safranin
RNA polymerase
PEPTIDE BOND
29. Are Restriction Enzymes
LIPID A
Endonuclease
Amino acids
mRNA
30. Polar molecule component of the CM (the 'head')
PHOSPHATE
Uracil
5' - 3'
POLYSACCHARIDE
31. Monomers of proteins
PROKARYOTE
Amino acids
Uracil
Hershey and Chase
32. Found the transforming factor to be DNA
mRNA
Avery
Endergonic
Primer
33. Phosphate is added to a molecule to make it unstable. Molecule more easily broken now.
Lactose
Phosphorolation
PERIPLASM
3' -5'
34. Process of using mRNA to create proteins
Translation
Avery
Single Stranded Binding Protein
Safranin
35. 'four'
TETRAD
Iodine
STAPHYL
GLYCOSIDIC BOND
36. How cells use energy stored in food and molecules to make ATP
Cellular respiration
mRNA
Endergonic
Translation
37. Many amino acids bonded together with peptide bonds
RNA polymerase
ENDOTOXIN
Peptide bond
Polypeptide
38. Makes a repressor - binds to promoter/operator to stop RNA polymerase
GRAM NEGATIVE
ATP
Regulator
mRNA
39. Attraction
Affinity
Safranin
HYDROPHILIC
PHOSPHOLIPID BILAYER
40. Stains the Lipid A of gram positive bacteria cell wall
Affinity
Tata box
Stop codon
Crystal Violet
41. Initiates transcription
Glycolysis
Tata box
Promoter
Inducer
42. Lays down RNA Primase to indicate the start of replication
CELL WALL
Gyrase
PEPTIDOGLYCAN
RNA polymerase
43. Breaks down lactase
LIPOPOLYSACCHARIDE
OUTER MEMBRANE
Activation energy
Lactose
44. Chains of molecules attached to the CW of a Gram + bacterium
SPIRILLI
TECHOID ACID
CYTOPLAMIC MEMBRANE
Peptide bond
45. Glyceraldyhyde 3 Phosphaet Dehydrogenase - phosphorolates and reduces NAD by adding 2e- and a H+
Regulator
Introns
GAPDH
BACILLI
46. Replicated continuously
HYDROPHOBIC
Exons
Introns
Leading strand
47. Where the double stranded end came a part and the complimentary start join
Sticky ends
Electronegativity
NAD+
Regulator
48. (LPS); lipids and polysaccharides linked together by covalent bonds
Gram Negative
NADH
LIPID A
LIPOPOLYSACCHARIDE
49. Is a code in which it is the same code forward as it is backwards - restriction sites
Palindrome
Restriction Enzyme
CELL WALL
Single Stranded Binding Protein
50. Polymer of carbohydrates joined together by glycosidic bonds
Polypeptide
POLYSACCHARIDE
Chargaff
COCCI