Human Anatomy and Physiology 9th Edition
(Marieb 2020)
How Does Chemistry Play A Vital Role In Anatomy? - answers-The body is made up of 1000s of chemicals
that are continuously interacting. Chemical reactions underlie ALL physical processes.
Matter - answers-Anything that has mass and takes up space
Differentiate between weight and mass: - answers-weight varies w/gravity. mass is constant.
States of Matter and examples of each: - answers-1. Solid: bone
2. Liquid: blood plasma
3. Gas: oxygen
Energy - answers-Capacity to do work, or to put matter into motion.
Two Forms of Energy - answers-1. Potential
2. Kinetic
Potential Energy - answers-Stored Energy; Inactive with the potential to be used
Kinetic Energy - answers-Energy of motion
4 Energy Forms Used By the Body: - answers-1. Chemical
2. Mechanical
3. Electrical
4. Radiant/Electromagnetic
Chemical Energy - answers-Energy stored in chemical bonds (food)
,Human Anatomy and Physiology 9th Edition
(Marieb 2020)
Mechanical Energy - answers-Kinetic or potential energy associated with the motion or position of an
object. (legs provide m.e. to move bicycle pedals)
Electrical Energy - answers-Energy caused by the movement of electrons. (electrical currents stimulate
the heart to contract)
Radiant/Electromagnetic Energy - answers-Energy in the form of waves (UV rays stimulate your body to
make Vitamin D)
Form of chemical energy used to run almost all functional processes in the body. Most useful form of
energy in living systems. - answers-Adenosine Triphosphate (ATP)
Energy Conversions - answers-Are inefficient b/c they give off heat. Energy is lost as heat. However
energy conversions liberate heat in the body. This is useful to maintain our body temp.
Elements - answers-A unique substance that cannot be broken down into simpler substances by
ordinary chemical reactions
118 - answers-Number of Elements
92 - answers-Number of Elements that Occur in Nature
4 Elements that Make Up 96% of Body Weight - answers-1. Oxygen- 65%
2. Carbon- 18.5%
3. Hydrogen- 9.5%
4. Nitrogen- 3.2%
Total Number of Elements in the Human Body: - answers-24
Atoms - answers-Building blocks of matter
, Human Anatomy and Physiology 9th Edition
(Marieb 2020)
Physical Properties - answers-Can be observed or measured without changing the identity of the matter
Chemical Properties - answers-pertains to the way atoms interact with other atoms (bonding behavior)
Atomic Symbol - answers-An abbreviation for an element derived from the first one or two letters of the
element's name. A few are taken from the latin names (Sodium=NA)
Atomic Structure - answers-Atoms are composed of protons (p+); neutrons, (n0); and electrons (e-)
orbiting the nucleus. The number of protons determines the identity of the atom (atomic number).
Electrons determine the chemical reactivity of the atom. The number of e- is equal to the number of p+
in an atom.
Atomic Number - answers-Number of protons. Written as subscript to left.
Atomic Mass - answers-Sum of protons and neutrons. Written as superscript to left.
Isotopes - answers-Atoms of the same element having different masses because they contain different
numbers of neutrons.
Atomic Weight - answers-an average of the relative weights of all the isotopes of an element. therefore
aw is approximately = to the mass # of its most abundant isotope.
Radioisotopes - answers-heavier isotopes that demonstrate radioactivity when their atoms decompose
spontaneously due to their instability. they decompose into more stable forms. used in clinical settings
to diagnose
Atomic Decay - answers-Radioactivity
Quarks - answers-Particles of matter that make up protons and neutrons.
(Marieb 2020)
How Does Chemistry Play A Vital Role In Anatomy? - answers-The body is made up of 1000s of chemicals
that are continuously interacting. Chemical reactions underlie ALL physical processes.
Matter - answers-Anything that has mass and takes up space
Differentiate between weight and mass: - answers-weight varies w/gravity. mass is constant.
States of Matter and examples of each: - answers-1. Solid: bone
2. Liquid: blood plasma
3. Gas: oxygen
Energy - answers-Capacity to do work, or to put matter into motion.
Two Forms of Energy - answers-1. Potential
2. Kinetic
Potential Energy - answers-Stored Energy; Inactive with the potential to be used
Kinetic Energy - answers-Energy of motion
4 Energy Forms Used By the Body: - answers-1. Chemical
2. Mechanical
3. Electrical
4. Radiant/Electromagnetic
Chemical Energy - answers-Energy stored in chemical bonds (food)
,Human Anatomy and Physiology 9th Edition
(Marieb 2020)
Mechanical Energy - answers-Kinetic or potential energy associated with the motion or position of an
object. (legs provide m.e. to move bicycle pedals)
Electrical Energy - answers-Energy caused by the movement of electrons. (electrical currents stimulate
the heart to contract)
Radiant/Electromagnetic Energy - answers-Energy in the form of waves (UV rays stimulate your body to
make Vitamin D)
Form of chemical energy used to run almost all functional processes in the body. Most useful form of
energy in living systems. - answers-Adenosine Triphosphate (ATP)
Energy Conversions - answers-Are inefficient b/c they give off heat. Energy is lost as heat. However
energy conversions liberate heat in the body. This is useful to maintain our body temp.
Elements - answers-A unique substance that cannot be broken down into simpler substances by
ordinary chemical reactions
118 - answers-Number of Elements
92 - answers-Number of Elements that Occur in Nature
4 Elements that Make Up 96% of Body Weight - answers-1. Oxygen- 65%
2. Carbon- 18.5%
3. Hydrogen- 9.5%
4. Nitrogen- 3.2%
Total Number of Elements in the Human Body: - answers-24
Atoms - answers-Building blocks of matter
, Human Anatomy and Physiology 9th Edition
(Marieb 2020)
Physical Properties - answers-Can be observed or measured without changing the identity of the matter
Chemical Properties - answers-pertains to the way atoms interact with other atoms (bonding behavior)
Atomic Symbol - answers-An abbreviation for an element derived from the first one or two letters of the
element's name. A few are taken from the latin names (Sodium=NA)
Atomic Structure - answers-Atoms are composed of protons (p+); neutrons, (n0); and electrons (e-)
orbiting the nucleus. The number of protons determines the identity of the atom (atomic number).
Electrons determine the chemical reactivity of the atom. The number of e- is equal to the number of p+
in an atom.
Atomic Number - answers-Number of protons. Written as subscript to left.
Atomic Mass - answers-Sum of protons and neutrons. Written as superscript to left.
Isotopes - answers-Atoms of the same element having different masses because they contain different
numbers of neutrons.
Atomic Weight - answers-an average of the relative weights of all the isotopes of an element. therefore
aw is approximately = to the mass # of its most abundant isotope.
Radioisotopes - answers-heavier isotopes that demonstrate radioactivity when their atoms decompose
spontaneously due to their instability. they decompose into more stable forms. used in clinical settings
to diagnose
Atomic Decay - answers-Radioactivity
Quarks - answers-Particles of matter that make up protons and neutrons.
