BIO201 Topic 2: Chemistry for Anatomy and
Physiology Students Quiz; fall 2021; Grade 35.00 out
of 35.00 (100%)
Biochemistry - ---The study of the molecules that compose living organisms
Element - ---The simplest form of matter to have unique chemical properties
Trace Elements - ---Elements that count for less then 0.02% body weight
Minerals - ---inorganic elements that are extracted from the soil by plants and assed up the
food chain to humans and other organisms.
Atoms are made up of - ---Protons, Neutrons & Electrons
Protons - ---located in the nucleus of the atom, has a single positive charge
Neutrons - ---located in the nucleus of the atom, has no charge
Electrons - ---located outside the nucleus of the atom, are tiny particles with a single
negative charge and very low mass.
Valence Electrons - ---Electrons of the outermost shell of an atom
Isotopes - ---elements wich differ from one another only in number of neutrons and in
atomic mass.
radioisotopes - ---unstable isotopes
radioactivity - ---the process of decay on an isotope
, ionizing radiation - ---caused by high-energy radiation, which rejects electrons from atoms,
converting atoms to ions.
Physical Half-life - ---the time required for 50% of a radioisotopes atoms to decay to a more
stable state.
Biological Half-life of a radioisotope is the - ---time required for half of it to disappear from
the body
Ions - ---are charged particles with unequal numbers of proton and electrons
anion - ---is a particle that gains electrons and acquires a negative charge
cation - ---looses electrons and acquires a positive charge
Electrolytes - ---salts that ionize in water and form solutions capable of conducting electricity
Free Radicals - ---Chemical properties with an odd number of electrons.
Antioxidant - ---a chemical that neutralizes free radicals
Molecules - ---chemical particles composed of 2 or more atoms united by a COVALENT
chemical bond (The sharing of electrons)
Compounds - ---molecules composed of 2 or more different elements
Isomer - ---molecules with identical molecular formulae but different arrangements of their
atoms
molecular weight (MW)of a compound is - ---the sum of the atomic weights of its atoms
A molecule is held together , and molecules are attracted to one another by forces called -
---chemical bonds
Physiology Students Quiz; fall 2021; Grade 35.00 out
of 35.00 (100%)
Biochemistry - ---The study of the molecules that compose living organisms
Element - ---The simplest form of matter to have unique chemical properties
Trace Elements - ---Elements that count for less then 0.02% body weight
Minerals - ---inorganic elements that are extracted from the soil by plants and assed up the
food chain to humans and other organisms.
Atoms are made up of - ---Protons, Neutrons & Electrons
Protons - ---located in the nucleus of the atom, has a single positive charge
Neutrons - ---located in the nucleus of the atom, has no charge
Electrons - ---located outside the nucleus of the atom, are tiny particles with a single
negative charge and very low mass.
Valence Electrons - ---Electrons of the outermost shell of an atom
Isotopes - ---elements wich differ from one another only in number of neutrons and in
atomic mass.
radioisotopes - ---unstable isotopes
radioactivity - ---the process of decay on an isotope
, ionizing radiation - ---caused by high-energy radiation, which rejects electrons from atoms,
converting atoms to ions.
Physical Half-life - ---the time required for 50% of a radioisotopes atoms to decay to a more
stable state.
Biological Half-life of a radioisotope is the - ---time required for half of it to disappear from
the body
Ions - ---are charged particles with unequal numbers of proton and electrons
anion - ---is a particle that gains electrons and acquires a negative charge
cation - ---looses electrons and acquires a positive charge
Electrolytes - ---salts that ionize in water and form solutions capable of conducting electricity
Free Radicals - ---Chemical properties with an odd number of electrons.
Antioxidant - ---a chemical that neutralizes free radicals
Molecules - ---chemical particles composed of 2 or more atoms united by a COVALENT
chemical bond (The sharing of electrons)
Compounds - ---molecules composed of 2 or more different elements
Isomer - ---molecules with identical molecular formulae but different arrangements of their
atoms
molecular weight (MW)of a compound is - ---the sum of the atomic weights of its atoms
A molecule is held together , and molecules are attracted to one another by forces called -
---chemical bonds
