WCU PHYS 261 – midterm Questions
with Accurate Answers
What is physiology? - ANSWERSthe study of function of the body - how the body parts
work and carry out their life sustaining activities
Cell - ANSWERSThe basic unit of structure and function in living things
Level of organization - ANSWERSatom, molecule, cell, tissue, organ, organ system,
organism, population of one species, eco system of diff species, biosphere
Homeostasis - ANSWERSa constant state of natural balance within the body
placebo effect - ANSWERSa positive result from a healing method due to a symbolic or
otherwise nonmaterial factor
nocebo effect - ANSWERSa negative placebo effect due to the expectation of adverse
consequences from receiving treatment
dependent variable - ANSWERSWHAT YOU MEASURE- ON Y AXIS
independent variable - ANSWERSvariable that is manipulated
control group - ANSWERSthe group that does not receive the experimental treatment.
Atom - ANSWERSBasic unit of matter
3 subatomic particles - ANSWERSprotons, neutrons, electrons
Protons - ANSWERSan atom that gains/loses protons becomes different element
Electron - ANSWERSbecomes ion in same element
Neutron - ANSWERSbecomes isotope of same element
atomic number - ANSWERSnumber on top
atomic mass - ANSWERS(at the bottom)Number of protons and neutrons
free radicals - ANSWERSunpaired electrons- normally pairs. will try to steal an electron
from another mol
, covalent bond - ANSWERSa strong chemical bond resulting from the sharing of a pair
of electrons between two atoms
ionic bond - ANSWERSA chemical bond resulting from the attraction between
oppositely charged(cation and anions) ions
-opposites attract
Ions - ANSWERSpositively and negatively charged atoms
(Na+ = lost one electron)
hydrogen bond - ANSWERSweak/partial
Flourine, Nitrogen, Oxygen
water surface tension, boiling, and freezing
van der Waals forces - ANSWERSweak, nonspecific forces between molecules.
CHO - ANSWERSmost abundant
Carbon, Hydrogen, Oxygen
mono/disacch - simple sugar
poly- complex
Lipids - ANSWERSC & H little O
nonpolar
triglyceride- most abundant/important
phospholipids-eicosanoids/steroids
PRO - ANSWERSmade up of AA(20 in total- obtained in diet)
most versatile biomol
Nucleotide - ANSWERSenergy + info transfer
ATP, ADP, cAMP
nucleic acids - ANSWERSDNA and RNA store + transmit genetic info
Hydrophobic - ANSWERSdo not dissolve in water
nonpolar
Hydrophilic - ANSWERSdissolves easily in water
polar
Protein Structure: Primary - ANSWERSsequence of amino acids connected by peptide
bonds
Protein Structure: Secondary - ANSWERScreated primarily by hydrogen bonds
protein structure: tertiary - ANSWERS3D shape
with Accurate Answers
What is physiology? - ANSWERSthe study of function of the body - how the body parts
work and carry out their life sustaining activities
Cell - ANSWERSThe basic unit of structure and function in living things
Level of organization - ANSWERSatom, molecule, cell, tissue, organ, organ system,
organism, population of one species, eco system of diff species, biosphere
Homeostasis - ANSWERSa constant state of natural balance within the body
placebo effect - ANSWERSa positive result from a healing method due to a symbolic or
otherwise nonmaterial factor
nocebo effect - ANSWERSa negative placebo effect due to the expectation of adverse
consequences from receiving treatment
dependent variable - ANSWERSWHAT YOU MEASURE- ON Y AXIS
independent variable - ANSWERSvariable that is manipulated
control group - ANSWERSthe group that does not receive the experimental treatment.
Atom - ANSWERSBasic unit of matter
3 subatomic particles - ANSWERSprotons, neutrons, electrons
Protons - ANSWERSan atom that gains/loses protons becomes different element
Electron - ANSWERSbecomes ion in same element
Neutron - ANSWERSbecomes isotope of same element
atomic number - ANSWERSnumber on top
atomic mass - ANSWERS(at the bottom)Number of protons and neutrons
free radicals - ANSWERSunpaired electrons- normally pairs. will try to steal an electron
from another mol
, covalent bond - ANSWERSa strong chemical bond resulting from the sharing of a pair
of electrons between two atoms
ionic bond - ANSWERSA chemical bond resulting from the attraction between
oppositely charged(cation and anions) ions
-opposites attract
Ions - ANSWERSpositively and negatively charged atoms
(Na+ = lost one electron)
hydrogen bond - ANSWERSweak/partial
Flourine, Nitrogen, Oxygen
water surface tension, boiling, and freezing
van der Waals forces - ANSWERSweak, nonspecific forces between molecules.
CHO - ANSWERSmost abundant
Carbon, Hydrogen, Oxygen
mono/disacch - simple sugar
poly- complex
Lipids - ANSWERSC & H little O
nonpolar
triglyceride- most abundant/important
phospholipids-eicosanoids/steroids
PRO - ANSWERSmade up of AA(20 in total- obtained in diet)
most versatile biomol
Nucleotide - ANSWERSenergy + info transfer
ATP, ADP, cAMP
nucleic acids - ANSWERSDNA and RNA store + transmit genetic info
Hydrophobic - ANSWERSdo not dissolve in water
nonpolar
Hydrophilic - ANSWERSdissolves easily in water
polar
Protein Structure: Primary - ANSWERSsequence of amino acids connected by peptide
bonds
Protein Structure: Secondary - ANSWERScreated primarily by hydrogen bonds
protein structure: tertiary - ANSWERS3D shape
