LSU Bio 1201 Final Exam Pomarico
UPDATED Questions and CORRECT
Answers
Which four elements make up 90% of life? - CORRECT ANSWER - C, H, N, O
Does DNA have uracil or thymine? - CORRECT ANSWER - Thymine
What is a macromolecule? - CORRECT ANSWER - Molecule made up of polymers
What are the complementary base pairs in DNA - CORRECT ANSWER - A-T, G-C
Which of the following are not pyrimidines?
T, C, U, A, G - CORRECT ANSWER - A, G
What causes an element to become an isotope? - CORRECT ANSWER - Change in # of
neutrons
What is an enantiomer? - CORRECT ANSWER - Two molecules that are mirror images of
each other
What characteristic is specific of tertiary structure? - CORRECT ANSWER - Interactions
with side chains
What is a hydrogen bond? - CORRECT ANSWER - A bond between a hydrogen with a
partial positive & partial negative charge atom (usually oxygen and nitrogen)
Spider walking on water is a result of - CORRECT ANSWER - Surface tension; cohesion
, Which of the following would most likely have a polar bond?
CH, CO, OO, CN, NH - CORRECT ANSWER - CO and NH
Products of cellular respiration - CORRECT ANSWER - CO2, water, energy
What is the most important product of anaerobic respiration? - CORRECT ANSWER -
Regeneration of NAD+
What happens to Co2 in the Calvin Benson cycle? - CORRECT ANSWER -
Fixation/reduction; incorporation into sugar molecules
Where does the most energy production occur in cellular respiration? - CORRECT
ANSWER - Oxidative phosphorylation
What are the properties of a proton compared to neutrons and electrons? - CORRECT
ANSWER - Heavy, positive
Which molecules can cross the membrane the easiest? - CORRECT ANSWER - Nonpolar,
small
Which isomer has a carbon-carbon double bond? - CORRECT ANSWER - Geometric/cis
trans
Why is carbon the most versatile organic element? - CORRECT ANSWER - Ability to
make 4 bonds
Which type of group would a hydroxyl group most likely bond to? - CORRECT
ANSWER - Polar
UPDATED Questions and CORRECT
Answers
Which four elements make up 90% of life? - CORRECT ANSWER - C, H, N, O
Does DNA have uracil or thymine? - CORRECT ANSWER - Thymine
What is a macromolecule? - CORRECT ANSWER - Molecule made up of polymers
What are the complementary base pairs in DNA - CORRECT ANSWER - A-T, G-C
Which of the following are not pyrimidines?
T, C, U, A, G - CORRECT ANSWER - A, G
What causes an element to become an isotope? - CORRECT ANSWER - Change in # of
neutrons
What is an enantiomer? - CORRECT ANSWER - Two molecules that are mirror images of
each other
What characteristic is specific of tertiary structure? - CORRECT ANSWER - Interactions
with side chains
What is a hydrogen bond? - CORRECT ANSWER - A bond between a hydrogen with a
partial positive & partial negative charge atom (usually oxygen and nitrogen)
Spider walking on water is a result of - CORRECT ANSWER - Surface tension; cohesion
, Which of the following would most likely have a polar bond?
CH, CO, OO, CN, NH - CORRECT ANSWER - CO and NH
Products of cellular respiration - CORRECT ANSWER - CO2, water, energy
What is the most important product of anaerobic respiration? - CORRECT ANSWER -
Regeneration of NAD+
What happens to Co2 in the Calvin Benson cycle? - CORRECT ANSWER -
Fixation/reduction; incorporation into sugar molecules
Where does the most energy production occur in cellular respiration? - CORRECT
ANSWER - Oxidative phosphorylation
What are the properties of a proton compared to neutrons and electrons? - CORRECT
ANSWER - Heavy, positive
Which molecules can cross the membrane the easiest? - CORRECT ANSWER - Nonpolar,
small
Which isomer has a carbon-carbon double bond? - CORRECT ANSWER - Geometric/cis
trans
Why is carbon the most versatile organic element? - CORRECT ANSWER - Ability to
make 4 bonds
Which type of group would a hydroxyl group most likely bond to? - CORRECT
ANSWER - Polar
