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bio 411 final Questions with Answers (100% Correct
Answers)
nonpolar covalent bond Answer: covalent bond between atoms that
have the same or nearly the same electronegativity
equal sharing
polar covalent bond Answer: one atom is more electronegative
atoms do not share the electron equally
ionic bond Answer: transfer of electrons from their less electronegative
bonding partners
an attraction between an anion and a cation
hydrogen bond Answer: forms when a hydrogen atom covalently
bonded to one electronegative atom is also attracted to another
electronegative atom nearby
van der waals interactions Answer: electrons may be distributed
asymmetrically in molecules or atoms
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the resulting regions of positive or negative charge enable all atoms
and molecules to stick to one another
occur only when atoms and molecules are very close together
weak bonds Answer: ionic bonds
hydrogen bonds
van der waals interactions
compounds that dissolve in water Answer: polar and ionic
compounds that do not dissolve in water Answer: nonpolar
acidic solutions Answer: contain more H+ that OH-
pH of less than 7
basic solutions Answer: contain more OH- than H+
pH of greater than 7
isomers Answer: compounds with the same number of atoms of the
same elements but different structures and properties
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, 3
structural isomers Answer: differ in the covalent arrangement of their
atoms
cis-trans isomers Answer: carbons have covalent bonds to the same
atoms, but atoms differ in spatial arrangement
double bonds are inflexible
monomers Answer: building blocks of polymers
dehydration reaction Answer: two monomers bond together through
the loss of a water molecule
hydrolysis Answer: breaks down a polymer through the addition of a
water molecule
carbohydrates Answer: sugars and the polymers of sugars
macromolecules are polysaccharides
nucleotides Answer: a five-carbon sugar
a base containing nitrogen
one or more phosphate groups
© 2025 All rights reserved
bio 411 final Questions with Answers (100% Correct
Answers)
nonpolar covalent bond Answer: covalent bond between atoms that
have the same or nearly the same electronegativity
equal sharing
polar covalent bond Answer: one atom is more electronegative
atoms do not share the electron equally
ionic bond Answer: transfer of electrons from their less electronegative
bonding partners
an attraction between an anion and a cation
hydrogen bond Answer: forms when a hydrogen atom covalently
bonded to one electronegative atom is also attracted to another
electronegative atom nearby
van der waals interactions Answer: electrons may be distributed
asymmetrically in molecules or atoms
© 2025 All rights reserved
,2
the resulting regions of positive or negative charge enable all atoms
and molecules to stick to one another
occur only when atoms and molecules are very close together
weak bonds Answer: ionic bonds
hydrogen bonds
van der waals interactions
compounds that dissolve in water Answer: polar and ionic
compounds that do not dissolve in water Answer: nonpolar
acidic solutions Answer: contain more H+ that OH-
pH of less than 7
basic solutions Answer: contain more OH- than H+
pH of greater than 7
isomers Answer: compounds with the same number of atoms of the
same elements but different structures and properties
© 2025 All rights reserved
, 3
structural isomers Answer: differ in the covalent arrangement of their
atoms
cis-trans isomers Answer: carbons have covalent bonds to the same
atoms, but atoms differ in spatial arrangement
double bonds are inflexible
monomers Answer: building blocks of polymers
dehydration reaction Answer: two monomers bond together through
the loss of a water molecule
hydrolysis Answer: breaks down a polymer through the addition of a
water molecule
carbohydrates Answer: sugars and the polymers of sugars
macromolecules are polysaccharides
nucleotides Answer: a five-carbon sugar
a base containing nitrogen
one or more phosphate groups
© 2025 All rights reserved
