LSU Bio 1201 Final Exam Pomarico Questions With
100% Pass.
/. Which four elements make up 90% of life? - Answer-C, H, N, O
/.Does DNA have uracil or thymine? - Answer-Thymine
/.What is a macromolecule? - Answer-Molecule made up of polymers
/.What are the complementary base pairs in DNA - Answer-A-T, G-C
/.Which of the following are not pyrimidines?
T, C, U, A, G - Answer-A, G
/.What causes an element to become an isotope? - Answer-Change in # of neutrons
/.What is an enantiomer? - Answer-Two molecules that are mirror images of each other
/.What characteristic is specific of tertiary structure? - Answer-Interactions with side
chains
/.What is a hydrogen bond? - 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 - Answer-Surface tension; cohesion
/.Which of the following would most likely have a polar bond?
CH, CO, OO, CN, NH - Answer-CO and NH
/.Products of cellular respiration - Answer-CO2, water, energy
/.What is the most important product of anaerobic respiration? - Answer-Regeneration
of NAD+
/.What happens to Co2 in the Calvin Benson cycle? - Answer-Fixation/reduction;
incorporation into sugar molecules
/.Where does the most energy production occur in cellular respiration? - Answer-
Oxidative phosphorylation
/.What are the properties of a proton compared to neutrons and electrons? - Answer-
Heavy, positive
, /.Which molecules can cross the membrane the easiest? - Answer-Nonpolar, small
/.Which isomer has a carbon-carbon double bond? - Answer-Geometric/cis trans
/.Why is carbon the most versatile organic element? - Answer-Ability to make 4 bonds
/.Which type of group would a hydroxyl group most likely bond to? - Answer-Polar
/.Which organelle synthesizes proteins? - Answer-Rough ER
/.Which organelle prevents future damage from happening? - Answer-Lysosome
/.What to cellulose, glycogen, and starch have in common? - Answer-All derived from
glucose
/.Which property of water is the reason for many of water's other properties? - Answer-
Hydrogen bonding
/.In DNA structure, what makes up the lateral movement of the structure but not the
"stair steps"? - Answer-Phosphate group + sugar
/.What type of bond holds the double helix structure of DNA together? - Answer-
Hydrogen bonds
/.What type of bond as an equal sharing of electrons? - Answer-Nonpolar covalent
/.What is an example of an organelle that is found in eukaryotes but not prokaryotes? -
Answer-Nucleus
/.If cytosine makes up 20% of DNA, what % would be thymine? - Answer-30%.
30% A, 30% T= 60%
20% G, 20% C= 40%
/.What structures make up the nucleus? - Answer-Nuclear envelope, nuclear pores,
matrix, nucleolus. (NOT CHROMATIN)
/.How are DNA, chromosomes, and genes related? - Answer-Genes are made of DNA,
and are located on chromosomes.
/.What products of light reactions are used in the Calvin Cycle? - Answer-ATP, NADPH
/.Where are the electrons transferred to from photosystem II? - Answer-Electron
transport chain- thylakoid membrane
/.What are the characteristics of a solution with a pH of 7? - Answer-Neutral, same
concentration of OH- and H+ (1 x 10^-7)
100% Pass.
/. Which four elements make up 90% of life? - Answer-C, H, N, O
/.Does DNA have uracil or thymine? - Answer-Thymine
/.What is a macromolecule? - Answer-Molecule made up of polymers
/.What are the complementary base pairs in DNA - Answer-A-T, G-C
/.Which of the following are not pyrimidines?
T, C, U, A, G - Answer-A, G
/.What causes an element to become an isotope? - Answer-Change in # of neutrons
/.What is an enantiomer? - Answer-Two molecules that are mirror images of each other
/.What characteristic is specific of tertiary structure? - Answer-Interactions with side
chains
/.What is a hydrogen bond? - 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 - Answer-Surface tension; cohesion
/.Which of the following would most likely have a polar bond?
CH, CO, OO, CN, NH - Answer-CO and NH
/.Products of cellular respiration - Answer-CO2, water, energy
/.What is the most important product of anaerobic respiration? - Answer-Regeneration
of NAD+
/.What happens to Co2 in the Calvin Benson cycle? - Answer-Fixation/reduction;
incorporation into sugar molecules
/.Where does the most energy production occur in cellular respiration? - Answer-
Oxidative phosphorylation
/.What are the properties of a proton compared to neutrons and electrons? - Answer-
Heavy, positive
, /.Which molecules can cross the membrane the easiest? - Answer-Nonpolar, small
/.Which isomer has a carbon-carbon double bond? - Answer-Geometric/cis trans
/.Why is carbon the most versatile organic element? - Answer-Ability to make 4 bonds
/.Which type of group would a hydroxyl group most likely bond to? - Answer-Polar
/.Which organelle synthesizes proteins? - Answer-Rough ER
/.Which organelle prevents future damage from happening? - Answer-Lysosome
/.What to cellulose, glycogen, and starch have in common? - Answer-All derived from
glucose
/.Which property of water is the reason for many of water's other properties? - Answer-
Hydrogen bonding
/.In DNA structure, what makes up the lateral movement of the structure but not the
"stair steps"? - Answer-Phosphate group + sugar
/.What type of bond holds the double helix structure of DNA together? - Answer-
Hydrogen bonds
/.What type of bond as an equal sharing of electrons? - Answer-Nonpolar covalent
/.What is an example of an organelle that is found in eukaryotes but not prokaryotes? -
Answer-Nucleus
/.If cytosine makes up 20% of DNA, what % would be thymine? - Answer-30%.
30% A, 30% T= 60%
20% G, 20% C= 40%
/.What structures make up the nucleus? - Answer-Nuclear envelope, nuclear pores,
matrix, nucleolus. (NOT CHROMATIN)
/.How are DNA, chromosomes, and genes related? - Answer-Genes are made of DNA,
and are located on chromosomes.
/.What products of light reactions are used in the Calvin Cycle? - Answer-ATP, NADPH
/.Where are the electrons transferred to from photosystem II? - Answer-Electron
transport chain- thylakoid membrane
/.What are the characteristics of a solution with a pH of 7? - Answer-Neutral, same
concentration of OH- and H+ (1 x 10^-7)
