BIO 207 FINAL EXAM QUESTIONS AND VERIFIED
ANSWER; 100% CORRECT; 2026- 2025 UPDATE
Acidic side chains contain two __________ atoms. (This is a carboxylic
acid functional group.) - correct answer- Oxygen
Based on current evidence, what is the BEST explanation for the
conformational change observed in the Hemagglutinin protein of
influenza?
An increase in pH causes histidine to become negatively charged and
form a
salt bridge with aspartic acid, which leads to a kink in the alpha helix.
An increase in pH causes histidine to become positively charged and
form a
salt bridge with aspartic acid, which leads to a kink in the alpha helix.
A decrease in pH causes histidine to become positively charged and form
a
salt bridge with aspartic acid, which leads to a kink in an alpha helix.
A decrease in pH causes histidine to become negatively charged and
form a
salt bridge with aspartic acid, which leads to a kink in the alpha helix.
Magic butterflies make sweet love. - correct answer- A decrease in
pH causes histidine to become positively charged and form a salt bridge
with aspartic acid, which leads to a kink in an alpha helix.
, Based on your understanding of blood flow through the heart, which
grouping below displays a correct ordering of the process? All
parts/steps may not be included in each answer. Note: Blood flow
through the chambers on the right side of the heart is concurrent with
blood flow through the chambers on the left side of the heart.
- superior/inferior vena cava > left atrium > AV valve > left ventricle >
aorta
- right ventricle > AV valve > right atrium > SL valve > pulmonary veins >
lungs
- superior/inferior vena cava > right atrium > right ventricle > lungs >
pulmonary veins
- aorta > SL valve > right atrium > right ventricle > lungs > pulmonary
arteries > left atrium
- pulmonary arteries > AV valve > left atrium > SL valve > left ventricle >
aorta - correct answer- From the body blood flows from into the
superior/inferior vena cava to the right atrium to the right ventricle into
the lungs which enters the pulmonary veins.
Basic side chains contain ____________________ atoms. This is called
an amino functional group. - correct answer- One or two nitrogen
From your experience with static electricity, which side chains might be
attracted to each other? - correct answer- The basic amino acids (+
charge) and the acidic amino acids (- charge)
ANSWER; 100% CORRECT; 2026- 2025 UPDATE
Acidic side chains contain two __________ atoms. (This is a carboxylic
acid functional group.) - correct answer- Oxygen
Based on current evidence, what is the BEST explanation for the
conformational change observed in the Hemagglutinin protein of
influenza?
An increase in pH causes histidine to become negatively charged and
form a
salt bridge with aspartic acid, which leads to a kink in the alpha helix.
An increase in pH causes histidine to become positively charged and
form a
salt bridge with aspartic acid, which leads to a kink in the alpha helix.
A decrease in pH causes histidine to become positively charged and form
a
salt bridge with aspartic acid, which leads to a kink in an alpha helix.
A decrease in pH causes histidine to become negatively charged and
form a
salt bridge with aspartic acid, which leads to a kink in the alpha helix.
Magic butterflies make sweet love. - correct answer- A decrease in
pH causes histidine to become positively charged and form a salt bridge
with aspartic acid, which leads to a kink in an alpha helix.
, Based on your understanding of blood flow through the heart, which
grouping below displays a correct ordering of the process? All
parts/steps may not be included in each answer. Note: Blood flow
through the chambers on the right side of the heart is concurrent with
blood flow through the chambers on the left side of the heart.
- superior/inferior vena cava > left atrium > AV valve > left ventricle >
aorta
- right ventricle > AV valve > right atrium > SL valve > pulmonary veins >
lungs
- superior/inferior vena cava > right atrium > right ventricle > lungs >
pulmonary veins
- aorta > SL valve > right atrium > right ventricle > lungs > pulmonary
arteries > left atrium
- pulmonary arteries > AV valve > left atrium > SL valve > left ventricle >
aorta - correct answer- From the body blood flows from into the
superior/inferior vena cava to the right atrium to the right ventricle into
the lungs which enters the pulmonary veins.
Basic side chains contain ____________________ atoms. This is called
an amino functional group. - correct answer- One or two nitrogen
From your experience with static electricity, which side chains might be
attracted to each other? - correct answer- The basic amino acids (+
charge) and the acidic amino acids (- charge)
