WCU PHYS 261 WEEK 1 QUIZ CHAPTER 1
AND 2 COMPREHENSIVE EXAM 2026
QUESTIONS WITH ANSWERS GRADED A+
⩥ Cell Answer: The basic unit of structure and function in living things
⩥ Level of organization Answer: atom, molecule, cell, tissue, organ,
organ system, organism, population of one species, eco system of diff
species, biosphere
⩥ Homeostasis Answer: a constant state of natural balance within the
body
⩥ placebo effect Answer: a positive result from a healing method due to
a symbolic or otherwise nonmaterial factor
⩥ nocebo effect Answer: a negative placebo effect due to the expectation
of adverse consequences from receiving treatment
⩥ dependent variable Answer: WHAT YOU MEASURE- ON Y AXIS
⩥ independent variable Answer: variable that is manipulated
,⩥ control group Answer: the group that does not receive the
experimental treatment.
⩥ Atom Answer: Basic unit of matter
⩥ 3 subatomic particles Answer: protons, neutrons, electrons
⩥ Protons Answer: an atom that gains/loses protons becomes different
element
⩥ Electron Answer: becomes ion in same element
⩥ Neutron Answer: becomes isotope of same element
⩥ atomic number Answer: number on top
⩥ atomic mass Answer: (at the bottom)Number of protons and neutrons
⩥ free radicals Answer: unpaired electrons- normally pairs. will try to
steal an electron from another mol
⩥ covalent bond Answer: a strong chemical bond resulting from the
sharing of a pair of electrons between two atoms
, ⩥ ionic bond Answer: A chemical bond resulting from the attraction
between oppositely charged(cation and anions) ions
-opposites attract
⩥ Ions Answer: positively and negatively charged atoms
(Na+ = lost one electron)
⩥ hydrogen bond Answer: weak/partial
Flourine, Nitrogen, Oxygen
water surface tension, boiling, and freezing
⩥ van der Waals forces Answer: weak, nonspecific forces between
molecules.
⩥ CHO Answer: most abundant
Carbon, Hydrogen, Oxygen
mono/disacch - simple sugar
poly- complex
⩥ Lipids Answer: C & H little O
nonpolar
AND 2 COMPREHENSIVE EXAM 2026
QUESTIONS WITH ANSWERS GRADED A+
⩥ Cell Answer: The basic unit of structure and function in living things
⩥ Level of organization Answer: atom, molecule, cell, tissue, organ,
organ system, organism, population of one species, eco system of diff
species, biosphere
⩥ Homeostasis Answer: a constant state of natural balance within the
body
⩥ placebo effect Answer: a positive result from a healing method due to
a symbolic or otherwise nonmaterial factor
⩥ nocebo effect Answer: a negative placebo effect due to the expectation
of adverse consequences from receiving treatment
⩥ dependent variable Answer: WHAT YOU MEASURE- ON Y AXIS
⩥ independent variable Answer: variable that is manipulated
,⩥ control group Answer: the group that does not receive the
experimental treatment.
⩥ Atom Answer: Basic unit of matter
⩥ 3 subatomic particles Answer: protons, neutrons, electrons
⩥ Protons Answer: an atom that gains/loses protons becomes different
element
⩥ Electron Answer: becomes ion in same element
⩥ Neutron Answer: becomes isotope of same element
⩥ atomic number Answer: number on top
⩥ atomic mass Answer: (at the bottom)Number of protons and neutrons
⩥ free radicals Answer: unpaired electrons- normally pairs. will try to
steal an electron from another mol
⩥ covalent bond Answer: a strong chemical bond resulting from the
sharing of a pair of electrons between two atoms
, ⩥ ionic bond Answer: A chemical bond resulting from the attraction
between oppositely charged(cation and anions) ions
-opposites attract
⩥ Ions Answer: positively and negatively charged atoms
(Na+ = lost one electron)
⩥ hydrogen bond Answer: weak/partial
Flourine, Nitrogen, Oxygen
water surface tension, boiling, and freezing
⩥ van der Waals forces Answer: weak, nonspecific forces between
molecules.
⩥ CHO Answer: most abundant
Carbon, Hydrogen, Oxygen
mono/disacch - simple sugar
poly- complex
⩥ Lipids Answer: C & H little O
nonpolar
