BPS 2110 Biotargets Exam Questions And Correct Answers
Proteins are made by - ANSWER ribosomes
Proteins are dissambled by - ANSWER proteasomes
drugs produce effects by binding to - ANSWER biomolecules
primary structure of proteins - ANSWER sequence of amino acids
by convention, amino acids in a protein are listed in order from __ --> __ terminus -
ANSWER N --> C
secondary structure of protein - ANSWER protein structure is formed by folding and
twisting of amino acid chain
4 types of secondary structures - ANSWER - a-helix
- b-sheet
- loop
- turn
triangles on ribbon diagram = which terminus? - ANSWER C
square on ribbon diagram = which terminus? - ANSWER N
several B strands associate together to form - ANSWER B sheets
large sheets can curl around themselves, forming - ANSWER B barrels (cylinders)
, parallel B sheet - ANSWER N terminus on the same sides
antiparallel B sheet - ANSWER N terminus on the opposite sides
loops - ANSWER areas with no defined secondary structure
turns - ANSWER areas where the chain changes direction by a large amount
tertiary structure - ANSWER overall 3D shape of a protein
result of interactions between non adjacent regions
attractive forces in tertiary structures are mostly - ANSWER non bonding interactions
4 types of non bonding interactions - ANSWER H bonding
dipole dipole
van der waals
electrostatic
tertiary structure: covalent bond - ANSWER formation of a disulfide bond between two
cysteine side chains
why are van der waals forces important in proteins? - ANSWER VdW interactions occur
in a great number of areas that contain lots of non-polar side chains. These groups are
only capable of interacting using VdW interactions, and cannot participate in other
types of non-bonding interactions such as hydrogen bonding. Groups capable of
interacting via polar non-bonding interactions (like hydrogen bonding) exert stronger
attractive forces because the attraction between these groups isn't "diluted" by
interactions with the non-polar groups
Proteins are made by - ANSWER ribosomes
Proteins are dissambled by - ANSWER proteasomes
drugs produce effects by binding to - ANSWER biomolecules
primary structure of proteins - ANSWER sequence of amino acids
by convention, amino acids in a protein are listed in order from __ --> __ terminus -
ANSWER N --> C
secondary structure of protein - ANSWER protein structure is formed by folding and
twisting of amino acid chain
4 types of secondary structures - ANSWER - a-helix
- b-sheet
- loop
- turn
triangles on ribbon diagram = which terminus? - ANSWER C
square on ribbon diagram = which terminus? - ANSWER N
several B strands associate together to form - ANSWER B sheets
large sheets can curl around themselves, forming - ANSWER B barrels (cylinders)
, parallel B sheet - ANSWER N terminus on the same sides
antiparallel B sheet - ANSWER N terminus on the opposite sides
loops - ANSWER areas with no defined secondary structure
turns - ANSWER areas where the chain changes direction by a large amount
tertiary structure - ANSWER overall 3D shape of a protein
result of interactions between non adjacent regions
attractive forces in tertiary structures are mostly - ANSWER non bonding interactions
4 types of non bonding interactions - ANSWER H bonding
dipole dipole
van der waals
electrostatic
tertiary structure: covalent bond - ANSWER formation of a disulfide bond between two
cysteine side chains
why are van der waals forces important in proteins? - ANSWER VdW interactions occur
in a great number of areas that contain lots of non-polar side chains. These groups are
only capable of interacting using VdW interactions, and cannot participate in other
types of non-bonding interactions such as hydrogen bonding. Groups capable of
interacting via polar non-bonding interactions (like hydrogen bonding) exert stronger
attractive forces because the attraction between these groups isn't "diluted" by
interactions with the non-polar groups
