Weber State University HTHS 1110
Midterm Review Questions and Actual
Detailed Answers 2025-2026 Updated.
Anatomy - Answer Study of structure of the body
physiology - Answer the study of function of the body
levels of organization - Answer chemical - cell - tissue - organ - organ system - organism
Stimulus - feedback loop - Answer what is disrupting homeostasis outside of the body
variable - feedback loops - Answer what is different about the body because of the stimulus,
ex: body temperature, body osmolarity, blood pressure, etc.
receptor - feedback loops - Answer what sends the information to the control center
control center - feedback loops - Answer makes the decision on what to change in order to
bring the body back to homeostasis
effector - feedback loops - Answer causes change
signs - Answer what you can see
symptoms - Answer what you cannot see that the patient is complaining of
positron - Answer like an electron in all aspects, except it is positive
photons - Answer particles of visible light
wavelengths from shortest to longest - Answer radio waves - microwaves - infared - visible
light - ultraviolet - xrays - gamma rays
isotopes - Answer atoms that vary in the number of neutrons
, atomic number - Answer number of protons
mass number - Answer sum of protons and neutrons in the nucleus
covalent bonds - Answer bonds between two or more atoms that share electrons
Diffusion - Answer Movement of molecules from an area of higher concentration to an area
of lower concentration. Passive transportation of molecules
potential energy - Answer stored energy that results from the position or shape of an object
kinetic energy - Answer the energy an object has due to its motion
endergonic - Answer A chemical reaction that requires the input of energy in order to
proceed.
exergonic reaction - Answer A chemical reaction that releases energy
polar covalent bonds - Answer Bonds in which electrons are not shared equally between
atoms of different elements in a compound
ionic bonds - Answer Formed when one or more electrons are transferred from one atom to
another
bond strength - Answer triple covalent > double covalent > single covalent > ionic> hydrogen
hydrogen bond - Answer weak attraction between a hydrogen atom and another atom
surface tension - Answer the force that acts on the surface of a liquid and that tends to
minimize the area of the surface
surfactant - Answer any substance that interferes with the hydrogen bonding between water
molecules and thereby reduces surface tension
acids - Answer hydrogen donors, the more hydrogen donated, the stronger the acid 8-14
base - Answer hydrogen acceptors, the more hydrogen accepted, the weaker the base 0-6
Midterm Review Questions and Actual
Detailed Answers 2025-2026 Updated.
Anatomy - Answer Study of structure of the body
physiology - Answer the study of function of the body
levels of organization - Answer chemical - cell - tissue - organ - organ system - organism
Stimulus - feedback loop - Answer what is disrupting homeostasis outside of the body
variable - feedback loops - Answer what is different about the body because of the stimulus,
ex: body temperature, body osmolarity, blood pressure, etc.
receptor - feedback loops - Answer what sends the information to the control center
control center - feedback loops - Answer makes the decision on what to change in order to
bring the body back to homeostasis
effector - feedback loops - Answer causes change
signs - Answer what you can see
symptoms - Answer what you cannot see that the patient is complaining of
positron - Answer like an electron in all aspects, except it is positive
photons - Answer particles of visible light
wavelengths from shortest to longest - Answer radio waves - microwaves - infared - visible
light - ultraviolet - xrays - gamma rays
isotopes - Answer atoms that vary in the number of neutrons
, atomic number - Answer number of protons
mass number - Answer sum of protons and neutrons in the nucleus
covalent bonds - Answer bonds between two or more atoms that share electrons
Diffusion - Answer Movement of molecules from an area of higher concentration to an area
of lower concentration. Passive transportation of molecules
potential energy - Answer stored energy that results from the position or shape of an object
kinetic energy - Answer the energy an object has due to its motion
endergonic - Answer A chemical reaction that requires the input of energy in order to
proceed.
exergonic reaction - Answer A chemical reaction that releases energy
polar covalent bonds - Answer Bonds in which electrons are not shared equally between
atoms of different elements in a compound
ionic bonds - Answer Formed when one or more electrons are transferred from one atom to
another
bond strength - Answer triple covalent > double covalent > single covalent > ionic> hydrogen
hydrogen bond - Answer weak attraction between a hydrogen atom and another atom
surface tension - Answer the force that acts on the surface of a liquid and that tends to
minimize the area of the surface
surfactant - Answer any substance that interferes with the hydrogen bonding between water
molecules and thereby reduces surface tension
acids - Answer hydrogen donors, the more hydrogen donated, the stronger the acid 8-14
base - Answer hydrogen acceptors, the more hydrogen accepted, the weaker the base 0-6
