AP BIOLOGY UNIT 1 EXAM 2026 UPDATE QUESTIONS
AND CORRECT VERIFIED ANSWERS ALREADY GRADED
A+ (BRAND NEW VISION)
Primary - ANS-At the _______ level of protein structure, a linear sequence of amino acids is
joined by peptide bonds to form a polypeptide.
Secondary - ANS-At the _________ level of protein structure, hydrogen bonds form between
the partial positive hydrogen atom of amine groups and the partial negative oxygen atom of
carboxyl groups.
β Pleated Sheet - ANS-__ ___________ ______________ are a secondary structure found in
proteins.
α Helix - ANS-___ ___________ are a secondary structure found in proteins.
Tertiary - ANS-At the ________ level of protein structure, various chemical associations in
precise regions of a polypeptide cause it to fold into a 3D shape that will determine its function.
Quaternary - ANS-At the __________ level of protein structure, 2 to 4 completely formed
polypeptides combine.
Sickle cell anemia - ANS-In this disease, one amino acid at the primary level (valine) replaces
glutamic acid and the result is a distorted shape at the subsequent levels.
Hormonal - ANS-Insulin and glucagon are examples of _________ proteins.
, Receptor - ANS-________ proteins are embedded in all membranes and allow cells to interact
with molecules and other cells.
Contractile/Movement - ANS-___________ proteins, such as actin and myosin, are found in
muscle cells.
Transport - ANS-_____________ proteins move molecules into and out of cells.
Defensive - ANS-_________ proteins, like antibodies, are produced in response to antigens and
bind to them.
Denaturation - ANS-Excessive heat can cause ____________, in which a protein unravels and
loses its native shape.
Chaperonins - ANS-Assist in the proper folding of the protein by keeping the polypeptide
segregated from disruptive chemical conditions in the cytoplasmic and create a hydrophilic
environment for folding polypeptides
Nucleotides - ANS-Nucleic acids are composed of ___________.
Polynucleotide - ANS-The polymer in a nucleic acid is a(n) ______________.
Phosphodiester bonds - ANS-Nucleotides link together via ________ _____ to form nucleic
acid.
Ribose - ANS-The sugar in RNA is ______.
deoxyribose - ANS-The sugar in DNA is ______.
AND CORRECT VERIFIED ANSWERS ALREADY GRADED
A+ (BRAND NEW VISION)
Primary - ANS-At the _______ level of protein structure, a linear sequence of amino acids is
joined by peptide bonds to form a polypeptide.
Secondary - ANS-At the _________ level of protein structure, hydrogen bonds form between
the partial positive hydrogen atom of amine groups and the partial negative oxygen atom of
carboxyl groups.
β Pleated Sheet - ANS-__ ___________ ______________ are a secondary structure found in
proteins.
α Helix - ANS-___ ___________ are a secondary structure found in proteins.
Tertiary - ANS-At the ________ level of protein structure, various chemical associations in
precise regions of a polypeptide cause it to fold into a 3D shape that will determine its function.
Quaternary - ANS-At the __________ level of protein structure, 2 to 4 completely formed
polypeptides combine.
Sickle cell anemia - ANS-In this disease, one amino acid at the primary level (valine) replaces
glutamic acid and the result is a distorted shape at the subsequent levels.
Hormonal - ANS-Insulin and glucagon are examples of _________ proteins.
, Receptor - ANS-________ proteins are embedded in all membranes and allow cells to interact
with molecules and other cells.
Contractile/Movement - ANS-___________ proteins, such as actin and myosin, are found in
muscle cells.
Transport - ANS-_____________ proteins move molecules into and out of cells.
Defensive - ANS-_________ proteins, like antibodies, are produced in response to antigens and
bind to them.
Denaturation - ANS-Excessive heat can cause ____________, in which a protein unravels and
loses its native shape.
Chaperonins - ANS-Assist in the proper folding of the protein by keeping the polypeptide
segregated from disruptive chemical conditions in the cytoplasmic and create a hydrophilic
environment for folding polypeptides
Nucleotides - ANS-Nucleic acids are composed of ___________.
Polynucleotide - ANS-The polymer in a nucleic acid is a(n) ______________.
Phosphodiester bonds - ANS-Nucleotides link together via ________ _____ to form nucleic
acid.
Ribose - ANS-The sugar in RNA is ______.
deoxyribose - ANS-The sugar in DNA is ______.
