UCONN BIOLOGY 1107 EXAM 1 GSKI
Monomers polymerize through - ANS -condensation (dehydration)
reactions, which release a water molecule.
Hydrolysis - ANS -the reverse reaction from condensation reactions,
which breaks polymers apart by adding a water molecule
Within the polypeptide, the peptide bonds form a "backbone" with
three key characteristics: - ANS -1. R-group orientation
- Side chains can interact with each other or water.
2. Directionality
- Free amino group, on the left, is called the N-terminus.
- Free carboxyl group, on the right, is called the C-terminus.
3.Flexibility
- Single bonds on either side of the peptide bond can rotate, making the
entire structure flexible.
, What Do Proteins Do? - ANS --Catalysis - enzymes speed up chemical
reactions.
-Defense - antibodies and complement proteins attack pathogens.
-Movement - motor and contractile proteins move the cell or molecules
within the cell.
-Signaling - proteins convey signals between cells.
-Structure - structural proteins define cell shape and comprise body
structures.
-Transport - transport proteins carry materials; membrane proteins
control molecular movement into and out of the cell.
A protein's primary structure - ANS -its unique sequence of amino acids.
a protein's secondary structure - ANS -Hydrogen bonds between the
carbonyl group of one amino acid and the amino group of another
A polypeptide must bend to allow this hydrogen bonding, forming: -
ANS --alpha helices
Monomers polymerize through - ANS -condensation (dehydration)
reactions, which release a water molecule.
Hydrolysis - ANS -the reverse reaction from condensation reactions,
which breaks polymers apart by adding a water molecule
Within the polypeptide, the peptide bonds form a "backbone" with
three key characteristics: - ANS -1. R-group orientation
- Side chains can interact with each other or water.
2. Directionality
- Free amino group, on the left, is called the N-terminus.
- Free carboxyl group, on the right, is called the C-terminus.
3.Flexibility
- Single bonds on either side of the peptide bond can rotate, making the
entire structure flexible.
, What Do Proteins Do? - ANS --Catalysis - enzymes speed up chemical
reactions.
-Defense - antibodies and complement proteins attack pathogens.
-Movement - motor and contractile proteins move the cell or molecules
within the cell.
-Signaling - proteins convey signals between cells.
-Structure - structural proteins define cell shape and comprise body
structures.
-Transport - transport proteins carry materials; membrane proteins
control molecular movement into and out of the cell.
A protein's primary structure - ANS -its unique sequence of amino acids.
a protein's secondary structure - ANS -Hydrogen bonds between the
carbonyl group of one amino acid and the amino group of another
A polypeptide must bend to allow this hydrogen bonding, forming: -
ANS --alpha helices
