BIOL 302 Exam 1 Zeigler Exam with
complete solutions latest version
Proteins are - CORRECT ANSWER-the most structurally complex and functionally
sophisticated molecules.
The functional unit within the cell - CORRECT ANSWER-Proteins
Structure protein - CORRECT ANSWER-provides the cell with shape and structure
Enzymes - CORRECT ANSWER-catalyze covalent bond breakage or formation
Transport Protein - CORRECT ANSWER-carries other molecules or ions
Motor protein - CORRECT ANSWER-generates movement in cells and tissues
Storage protein - CORRECT ANSWER-Stores small molecules or ions
Signal protein - CORRECT ANSWER-carries signals from cell to cell
Receptor protein - CORRECT ANSWER-detects signals and transmits them to the cells
machinery
Gene regulatory protein - CORRECT ANSWER-Binds DNA to switch genes on or off
Ex. Structure protein - CORRECT ANSWER-Tubulin and actin
ex. enzyme - CORRECT ANSWER-pepsin
ex. transport protein - CORRECT ANSWER-hemoglobin (oxygen)
ex. motor proteins - CORRECT ANSWER-myosin
ex. storage protein - CORRECT ANSWER-ferritin (iron in liver)
BRAINSCAPE1
, BRAINSCAPE1
ex. signal protein - CORRECT ANSWER-insulin (glucose levels)
ex. receptor protein - CORRECT ANSWER-insulin receptor
ex. gene regulatory protein - CORRECT ANSWER-transcriptional factors (lactose
repressor)
Amino Acids are - CORRECT ANSWER-building blocks that form proteins
monomer - CORRECT ANSWER-small chemical unit that makes up a protein
Total amino acids - CORRECT ANSWER-20
acidic, basic, hydrophobic, hydrophillic, ect. - CORRECT ANSWER-varying chemical
properties of amino acids
What is a protein molecule made from - CORRECT ANSWER-a long chain of amino
acids, each linked through covalent bonding (peptide bond)
Amino acid composition - CORRECT ANSWER-alpha C, amino group (n-terminus),
carboxyl group (C-terminus), R-group (side chain)
Where are peptide bonds formed on a protein? - CORRECT ANSWER-On the
backbone NOT between R groups
How are linkages of amino acids formed? - CORRECT ANSWER-through condensation
reaction
condensation reaction - CORRECT ANSWER-a water molecule is expelled in the
formation of the peptide bond linkage
A protein is made through - CORRECT ANSWER-the linkage of amino acids to form a
polypeptide chain
What do the N-terminus and C-terminus provide - CORRECT ANSWER-directionality
and polarity to the polypeptide chain
What gives the protein its distinct characteristics - CORRECT ANSWER-varying
chemical properties of the side chains (r groups)
R-group - CORRECT ANSWER-side chain
N terminus - CORRECT ANSWER-amino group
C terminus - CORRECT ANSWER-carboxyl group
N and C terminus are - CORRECT ANSWER-the backbone of the polypeptide
BRAINSCAPE1