Term
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Definition
| an interaction between positively and negatively charged ions. |
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Term
| Van der Waals Forces are? |
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Definition
| The result of temperary fluctuation in the charge distribution caused by nearness of two atoms |
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Term
| In DNA, Phosphodiester bonds are? |
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Definition
| covalent bonds between the phosphate groups and ribose sugars in the backbone |
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Term
| In DNA structure which bases are capable of forming hydrogen bonds with each other? |
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Definition
Guinin and Cytosine
Adenine and thyrosine |
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Term
True or False
Na+ CH3COO- is a buffer, solution that resists drastic change in pH |
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Definition
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Term
True or False
Delta G =Delta H+ (T)(delta S) |
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Definition
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Term
True or Flase
The formation of a dipeptide from two amino acids is accomplished by the loss of water molecule. |
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Definition
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Term
True or False
The second Law of thermodynamics state that the total entropy of a system and its surroundings always increases. |
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Definition
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Term
| Proteins are made out of? |
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Definition
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Term
Which one of the following amino acids are achiral?
A. Alanine
B. Luecine
C. Valine
D. Glycine |
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Definition
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Term
Which of the following amino acids contains 2 chiral centers?
A. Threonine
B. Cysteine
C. Methiodine
D. None of the above |
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Definition
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Term
| What is the pKa of Arginine? |
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Definition
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Term
| What is the one letter abbreviation for Glutamine? |
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Definition
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Term
True or false
Peptide bonds have free rotation thus produce conformations diversityin proteins. |
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Definition
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Term
Amino acids in solution at neutral pH are?
A. Fully protinated
B. Fully unprotinated
C. Dipolar |
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Definition
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Term
| The abreviation W, stands for what amino acid? |
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Definition
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Term
Which one of the amino acids contains side chain that is bonded to both nitrogen and an alpha-carbon?
A. Histidine
B. Imidazole
C. Proline |
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Definition
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Term
True or False
Protein-protein interactions give new assembly capabilities that individual proteins may lack. |
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Definition
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Term
Which one of the following amino acids contains carboximide?
A. E
B. D
C. N |
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Definition
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Term
Which one of the following amino acids may have undesirable activity and will not be used to synthesisze protiens?
A. Serine
B. Homoserine
C. Oxydized Cysteine |
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Definition
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Term
| in 1953, F. Sanger determined the amino acid sequence of what? |
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Definition
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Term
| The bond length for C=N is what? |
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Definition
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Term
True or Flase
Each amino Acid is related to the next transaltion of 3.6 A |
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Definition
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Term
| Two helices in a-keratin are cross linked by _____ |
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Definition
| Van der Waal interactions and ionic interactions. |
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Term
| Certain combinations of secondary structure are present in proteins. These structures are known as? |
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Definition
Motif's
super-secondary stuctures
domains |
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Term
True or False
on collogen, every third amino acid residue is hydroxyproline. |
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Definition
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