BIOLOGY 101 FINAL EXAM WITH
CORRECT QUESTIONS AND ANSWERS
2025
Neutron - CORRECT ANSWERS>>>>>>A particle with no charge (neither
positive nor negative) that is present in the nucleus is called Neutron
Proton - CORRECT ANSWERS>>>>>>a subatomic particle that has a
positive charge and that is found in the nucleus of an atom
Electron - CORRECT ANSWERS>>>>>>an elementary particle with negative
charge, negatively charged particle; located outside the atomic nucleus
Mass number - CORRECT ANSWERS>>>>>>the total number of protons and
neutrons in the nucleus of an atom
atomic number & mass number - CORRECT ANSWERS>>>>>>atomic
number- number of protons in one atom of the element.
mass number- number of protons + number of neutrons in one atom of the
element
Isotope - CORRECT ANSWERS>>>>>>atoms of the same element that have
different numbers of neutrons
,ionic bond - CORRECT ANSWERS>>>>>>a chemical bond resulting from the
attraction between oppositely charged ions
nonpolar covalent - CORRECT ANSWERS>>>>>>Bond formed when
electron pairs are shared equally between atoms.
polar covalent - CORRECT ANSWERS>>>>>>a type of bond that forms
when electrons are not shared equally
hydrogen bonds - CORRECT ANSWERS>>>>>>very weak bonds; occurs
when a hydrogen atom in one molecule is attracted to the electrostatic atom
in another molecule
adhesion - CORRECT ANSWERS>>>>>>the clinging of 1 substance to
another by means of hydrogen bonds
cohesion - CORRECT ANSWERS>>>>>>tendency of molecules of the same
kind to stick to one another
surface tension - CORRECT ANSWERS>>>>>>A measure of how difficult it
is to stretch or break the surface of a liquid. Water has a high surface tension
because of the hydrogen bonding of surface molecules.
solute - CORRECT ANSWERS>>>>>>the dissolved substance in a solution
, solution - CORRECT ANSWERS>>>>>>a homogeneous mixture of two or
more substances
solvent - CORRECT ANSWERS>>>>>>a liquid substance capable of
dissolving other substances
acid - CORRECT ANSWERS>>>>>>compound that donates H+ ions to an
aqueous solution and measures less than 7 on the pH scale
base - CORRECT ANSWERS>>>>>>any substance that forms hydroxide
ions in water and has a pH above 7
ph - CORRECT ANSWERS>>>>>>A measure of hydrogen ion concentration
equal to -log [H+] and ranging in value from 0 to 14.
4 classes of macromolecules - CORRECT ANSWERS>>>>>>A.
Carbohydrates. B. Lipids. C. Proteins. D. Nucleic Acids.
dehydration synthesis - CORRECT ANSWERS>>>>>>A chemical reaction in
which two molecules covalently bond to each other with the removal of a
water molecule.
CORRECT QUESTIONS AND ANSWERS
2025
Neutron - CORRECT ANSWERS>>>>>>A particle with no charge (neither
positive nor negative) that is present in the nucleus is called Neutron
Proton - CORRECT ANSWERS>>>>>>a subatomic particle that has a
positive charge and that is found in the nucleus of an atom
Electron - CORRECT ANSWERS>>>>>>an elementary particle with negative
charge, negatively charged particle; located outside the atomic nucleus
Mass number - CORRECT ANSWERS>>>>>>the total number of protons and
neutrons in the nucleus of an atom
atomic number & mass number - CORRECT ANSWERS>>>>>>atomic
number- number of protons in one atom of the element.
mass number- number of protons + number of neutrons in one atom of the
element
Isotope - CORRECT ANSWERS>>>>>>atoms of the same element that have
different numbers of neutrons
,ionic bond - CORRECT ANSWERS>>>>>>a chemical bond resulting from the
attraction between oppositely charged ions
nonpolar covalent - CORRECT ANSWERS>>>>>>Bond formed when
electron pairs are shared equally between atoms.
polar covalent - CORRECT ANSWERS>>>>>>a type of bond that forms
when electrons are not shared equally
hydrogen bonds - CORRECT ANSWERS>>>>>>very weak bonds; occurs
when a hydrogen atom in one molecule is attracted to the electrostatic atom
in another molecule
adhesion - CORRECT ANSWERS>>>>>>the clinging of 1 substance to
another by means of hydrogen bonds
cohesion - CORRECT ANSWERS>>>>>>tendency of molecules of the same
kind to stick to one another
surface tension - CORRECT ANSWERS>>>>>>A measure of how difficult it
is to stretch or break the surface of a liquid. Water has a high surface tension
because of the hydrogen bonding of surface molecules.
solute - CORRECT ANSWERS>>>>>>the dissolved substance in a solution
, solution - CORRECT ANSWERS>>>>>>a homogeneous mixture of two or
more substances
solvent - CORRECT ANSWERS>>>>>>a liquid substance capable of
dissolving other substances
acid - CORRECT ANSWERS>>>>>>compound that donates H+ ions to an
aqueous solution and measures less than 7 on the pH scale
base - CORRECT ANSWERS>>>>>>any substance that forms hydroxide
ions in water and has a pH above 7
ph - CORRECT ANSWERS>>>>>>A measure of hydrogen ion concentration
equal to -log [H+] and ranging in value from 0 to 14.
4 classes of macromolecules - CORRECT ANSWERS>>>>>>A.
Carbohydrates. B. Lipids. C. Proteins. D. Nucleic Acids.
dehydration synthesis - CORRECT ANSWERS>>>>>>A chemical reaction in
which two molecules covalently bond to each other with the removal of a
water molecule.
