Bio 402 UH Manoa Exam 1 Review for Final | Questions & Answers (100 %Score) Latest
Updated 2024/2025 Comprehensive Questions A+ Graded Answers | With Expert Solutions
The major carrier of chemical energy in all cells is:
acetyl triphosphate
adenosine monophosphate
adenosine triphosphate
cytosine tetraphosphate
uridine diphosphate - adenosine triphosphate
Which group contains only uncommon amino acids?
arginine, proline, glycine
proline, isoleucine, histidine
hydroxyproline, methionine, hydroxylysine
hydroxyproline, seleocysteine, ornithine - hydroxyproline, selenocysteine, ornithine
This peptide alanylglutamylglycylalanyleucine has:
a disulfide bridge
five peptide bonds
four peptide bonds
no free carboxyl group
two free amino groups - four peptide bonds
While the composition of hemoglobin in adult humans is A2B2, in the fetus, _____ is
observed
Z2E2
A2Z2
A2E2
A2D2
(alpha - A, zeta - Z, gamma - y, delta - 8) - None of the above
A2G2 (a2,y2)
Which is the C-terminal amino acid in the peptide val-leu-gly? - Gly
N-term > C-term
What level of protein structure by the 3-D structure of an entire polypeptide including all
amino acid side chains?
primary
secondary
tertiary
quaternary
none of these - tertiary
, In a heme group, iron forms two coordianated bonds, one to oxygen and the other to
_______. The heme iron is in the _____ charge state.
His-64; Fe3+
His-93; Fe3+
His-64; Fe2+
His-93; Fe2+
none - His-93; Fe2+
How does CO2 affect hemoglobin-oxygen binding?
Co2 binds directly to the oxygen binding site
CO2 displaces BPG, thus promoting the oxy state
CO2 is converted to bicarbonate which promotes the
oxy state
CO2 is converted to bicarbonate which promotes the
deoxy state
none - CO2 is converted to bicarbonate which promotes the DEOXY state
Which allosteric effector has the greatest ability to stabilize the deoxy state of
hemoglobin?
BPG
Co2
O2
H+
all are equal ability - BPG
Bone and tendons contain _____ while hair and nails contain _____.
Which of the following correctly describes the sequence of events in the myosin-actin
cycle?
Remember:
ATP binds to myosin before it lets go
myosin automatically binds to next actin subunit
release of Pi and ADP before returns to original - *Myosin bound to Actin*
ATP binds to myosin, myosin release from actin, myosin binds to another actin subunit,
release of Pi and ADP, stretched myosin returns to original conformation
Which of the following fibers is correctly paired with the protein that forms the fiber?
microfilaments - actin
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