WCU PHYS 261 MIDTERM EXAM PRACTICE TEST —
300 QUESTIONS & ANSWERS (VERIFIED/100%
CORRECT/LATEST UPDATE 2026
What is physiology?
the study of function of the body - how the body parts work and carry out
their life sustaining activities
Cell
The basic unit of structure and function in living things
Level of organization
atom, molecule, cell, tissue, organ, organ system, organism, population
of one species, eco system of diff species, biosphere
Homeostasis
a constant state of natural balance within the body
placebo effect
a positive result from a healing method due to a symbolic or otherwise
nonmaterial factor
nocebo effect
a negative placebo effect due to the expectation of adverse
consequences from receiving treatment
dependent variable
WHAT YOU MEASURE- ON Y AXIS
independent variable
variable that is manipulated
control group
,the group that does not receive the experimental treatment.
Atom
Basic unit of matter
3 subatomic particles
protons, neutrons, electrons
Protons
an atom that gains/loses protons becomes different element
Electron
becomes ion in same element
Neutron
becomes isotope of same element
atomic number
number on top
atomic mass
(at the bottom)Number of protons and neutrons
free radicals
unpaired electrons- normally pairs. will try to steal an electron from
another mol
covalent bond
a strong chemical bond resulting from the sharing of a pair of electrons
between two atoms
ionic bond
A chemical bond resulting from the attraction between oppositely
charged(cation and anions) ions
-opposites attract
, Ions
positively and negatively charged atoms
(Na+ = lost one electron)
hydrogen bond
weak/partial
Flourine, Nitrogen, Oxygen
water surface tension, boiling, and freezing
van der Waals forces
weak, nonspecific forces between molecules.
CHO
most abundant
Carbon, Hydrogen, Oxygen
mono/disacch - simple sugar
poly- complex
Lipids
C & H little O
nonpolar
triglyceride- most abundant/important
phospholipids-eicosanoids/steroids
PRO
made up of AA(20 in total- obtained in diet)
most versatile biomol
Nucleotide
energy + info transfer
ATP, ADP, cAMP
nucleic acids
DNA and RNA store + transmit genetic info
300 QUESTIONS & ANSWERS (VERIFIED/100%
CORRECT/LATEST UPDATE 2026
What is physiology?
the study of function of the body - how the body parts work and carry out
their life sustaining activities
Cell
The basic unit of structure and function in living things
Level of organization
atom, molecule, cell, tissue, organ, organ system, organism, population
of one species, eco system of diff species, biosphere
Homeostasis
a constant state of natural balance within the body
placebo effect
a positive result from a healing method due to a symbolic or otherwise
nonmaterial factor
nocebo effect
a negative placebo effect due to the expectation of adverse
consequences from receiving treatment
dependent variable
WHAT YOU MEASURE- ON Y AXIS
independent variable
variable that is manipulated
control group
,the group that does not receive the experimental treatment.
Atom
Basic unit of matter
3 subatomic particles
protons, neutrons, electrons
Protons
an atom that gains/loses protons becomes different element
Electron
becomes ion in same element
Neutron
becomes isotope of same element
atomic number
number on top
atomic mass
(at the bottom)Number of protons and neutrons
free radicals
unpaired electrons- normally pairs. will try to steal an electron from
another mol
covalent bond
a strong chemical bond resulting from the sharing of a pair of electrons
between two atoms
ionic bond
A chemical bond resulting from the attraction between oppositely
charged(cation and anions) ions
-opposites attract
, Ions
positively and negatively charged atoms
(Na+ = lost one electron)
hydrogen bond
weak/partial
Flourine, Nitrogen, Oxygen
water surface tension, boiling, and freezing
van der Waals forces
weak, nonspecific forces between molecules.
CHO
most abundant
Carbon, Hydrogen, Oxygen
mono/disacch - simple sugar
poly- complex
Lipids
C & H little O
nonpolar
triglyceride- most abundant/important
phospholipids-eicosanoids/steroids
PRO
made up of AA(20 in total- obtained in diet)
most versatile biomol
Nucleotide
energy + info transfer
ATP, ADP, cAMP
nucleic acids
DNA and RNA store + transmit genetic info
