bio 210 lecture exam 1 LATEST
QUESTIONS AND VERIFIED
CORRECT ANSWERS
GRADED A+
Covalent bond - CORRECT ANSWER-formed when atoms share electron
4 most common elements in the human body: - CORRECT ANSWER-nitrogen, hydrogen,
oxygen, carbon
dissociates - CORRECT ANSWER-bond between oxygen and hydrogen breaks apart
spontaneously, water dissociates to form ions
why is water neutral? - CORRECT ANSWER-Because it dissociates very easily
an acid dissociates in water to produce - CORRECT ANSWER-H+ and an anion
acid - CORRECT ANSWER-proton donor
base - CORRECT ANSWER-accepts H+ when added to a solution
,base - CORRECT ANSWER-also called a proton acceptor
solutions with equal concentrations of H+ and OH - CORRECT ANSWER-are neutral and
have a pH of 7
solutions with greater H+ are - CORRECT ANSWER-acidic, pH < 7
solutions with greater OH - CORRECT ANSWER-are basic, pH > 7
neutralization - CORRECT ANSWER-occurs when an acidic or basic solution is returned to
a neutral
acids - CORRECT ANSWER-neutralize by adding a base
bases - CORRECT ANSWER-neutralize by adding acid
buffers - CORRECT ANSWER-help prevent pH changes if excess acid is added
organic molecules - CORRECT ANSWER-molecules that contain carbon
inorganic molecules - CORRECT ANSWER-all other molecules
four classes of biomolecules - CORRECT ANSWER-lipids, carbohydrates, nucleic acids,
proteins
, lipids - CORRECT ANSWER-diverse group of fatty, water solutable compounds
triglycerides - CORRECT ANSWER-store energy, most common, long term energy storage
in adipose tissue, structural suppose, cushioning, insulation
phospholipids - CORRECT ANSWER-form cell membranes, have a head and a tail
head - CORRECT ANSWER-hydrophilic
tail - CORRECT ANSWER-hydrophobic
steroids - CORRECT ANSWER-ringed structures including hormones, cholesterol,
testosterone
eicosanoids - CORRECT ANSWER-locally acting hormones
monosaccharides - CORRECT ANSWER-simple monomers
glucose - CORRECT ANSWER-most common monosaccharide, primary nutrient supplying
energy to cells, glycogen Is storage form of glucose
glycogensis - CORRECT ANSWER-glucose binds to glycogen during this
glycogenolysis - CORRECT ANSWER-broken down from glycogen to form glucose
QUESTIONS AND VERIFIED
CORRECT ANSWERS
GRADED A+
Covalent bond - CORRECT ANSWER-formed when atoms share electron
4 most common elements in the human body: - CORRECT ANSWER-nitrogen, hydrogen,
oxygen, carbon
dissociates - CORRECT ANSWER-bond between oxygen and hydrogen breaks apart
spontaneously, water dissociates to form ions
why is water neutral? - CORRECT ANSWER-Because it dissociates very easily
an acid dissociates in water to produce - CORRECT ANSWER-H+ and an anion
acid - CORRECT ANSWER-proton donor
base - CORRECT ANSWER-accepts H+ when added to a solution
,base - CORRECT ANSWER-also called a proton acceptor
solutions with equal concentrations of H+ and OH - CORRECT ANSWER-are neutral and
have a pH of 7
solutions with greater H+ are - CORRECT ANSWER-acidic, pH < 7
solutions with greater OH - CORRECT ANSWER-are basic, pH > 7
neutralization - CORRECT ANSWER-occurs when an acidic or basic solution is returned to
a neutral
acids - CORRECT ANSWER-neutralize by adding a base
bases - CORRECT ANSWER-neutralize by adding acid
buffers - CORRECT ANSWER-help prevent pH changes if excess acid is added
organic molecules - CORRECT ANSWER-molecules that contain carbon
inorganic molecules - CORRECT ANSWER-all other molecules
four classes of biomolecules - CORRECT ANSWER-lipids, carbohydrates, nucleic acids,
proteins
, lipids - CORRECT ANSWER-diverse group of fatty, water solutable compounds
triglycerides - CORRECT ANSWER-store energy, most common, long term energy storage
in adipose tissue, structural suppose, cushioning, insulation
phospholipids - CORRECT ANSWER-form cell membranes, have a head and a tail
head - CORRECT ANSWER-hydrophilic
tail - CORRECT ANSWER-hydrophobic
steroids - CORRECT ANSWER-ringed structures including hormones, cholesterol,
testosterone
eicosanoids - CORRECT ANSWER-locally acting hormones
monosaccharides - CORRECT ANSWER-simple monomers
glucose - CORRECT ANSWER-most common monosaccharide, primary nutrient supplying
energy to cells, glycogen Is storage form of glucose
glycogensis - CORRECT ANSWER-glucose binds to glycogen during this
glycogenolysis - CORRECT ANSWER-broken down from glycogen to form glucose
