MCB3020 Exam 2 Asghari UF UPDATED
Questions and CORRECT Answers
metabolism - CORRECT ANSWER - the sum total of all the chemical reactions that occur
within a cell
catabolic pathway - CORRECT ANSWER - breaking down complex organic molecules
into their smaller subcomponents
which type of reactions are catabolic? - CORRECT ANSWER - hydrolysis reactions
catabolic reactions are ________________________ - CORRECT ANSWER - energy
conserving reactions that provide a ready source of reducing power (electrons)
anabolic reactions - CORRECT ANSWER - the synthesis of complex molecules from their
simpler subunits
which types of reactions are anabolic? - CORRECT ANSWER - dehydration synthesis
reactions
which reactions require energy from reducing power of electrons? - CORRECT
ANSWER - anabolic reactions
where do the anabolic reactions get their electrons for energy? - CORRECT ANSWER -
from catabolic reactions who provide reducing power through electrons
how are microbes involved in elemental cycling? - CORRECT ANSWER - nitrogen
fixation, nitrification, denitrification, and converting CO2 and CH4 to organic molecules
, nitrogen fixation - CORRECT ANSWER - when microbes convert unusable nitrogen gas
(N2) to useful ammonia (NH3)
nitrification - CORRECT ANSWER - conversion of ammonia (NH3) to nitrate (NO3)
denitrification - CORRECT ANSWER - conversion of nitrate (NO3) to nitrogen gas (N2)
energy - CORRECT ANSWER - defined as the capacity to cause change or do work
what are the 2 units of energy - CORRECT ANSWER - calorie and joule
calorie - CORRECT ANSWER - amount of heat energy needed to raise the temperature of
one gram of water from 14.5 celsius to 15.5
joule - CORRECT ANSWER - unit of work energy; 1 cal = 4.184 J
work - CORRECT ANSWER - occurs when a force acts over a distance
what are the 3 kinds of work in cellular biology - CORRECT ANSWER - chemical work,
transport work, and mechanical work
chemical work - CORRECT ANSWER - the production of complex molecules from
simpler ones
transport work - CORRECT ANSWER - involves the elimination of waste, up take of
nutrients, and maintenance of ion balances within the cell
mechanical work - CORRECT ANSWER - involves cell movement (motility) and
movement of intracellular structures
Questions and CORRECT Answers
metabolism - CORRECT ANSWER - the sum total of all the chemical reactions that occur
within a cell
catabolic pathway - CORRECT ANSWER - breaking down complex organic molecules
into their smaller subcomponents
which type of reactions are catabolic? - CORRECT ANSWER - hydrolysis reactions
catabolic reactions are ________________________ - CORRECT ANSWER - energy
conserving reactions that provide a ready source of reducing power (electrons)
anabolic reactions - CORRECT ANSWER - the synthesis of complex molecules from their
simpler subunits
which types of reactions are anabolic? - CORRECT ANSWER - dehydration synthesis
reactions
which reactions require energy from reducing power of electrons? - CORRECT
ANSWER - anabolic reactions
where do the anabolic reactions get their electrons for energy? - CORRECT ANSWER -
from catabolic reactions who provide reducing power through electrons
how are microbes involved in elemental cycling? - CORRECT ANSWER - nitrogen
fixation, nitrification, denitrification, and converting CO2 and CH4 to organic molecules
, nitrogen fixation - CORRECT ANSWER - when microbes convert unusable nitrogen gas
(N2) to useful ammonia (NH3)
nitrification - CORRECT ANSWER - conversion of ammonia (NH3) to nitrate (NO3)
denitrification - CORRECT ANSWER - conversion of nitrate (NO3) to nitrogen gas (N2)
energy - CORRECT ANSWER - defined as the capacity to cause change or do work
what are the 2 units of energy - CORRECT ANSWER - calorie and joule
calorie - CORRECT ANSWER - amount of heat energy needed to raise the temperature of
one gram of water from 14.5 celsius to 15.5
joule - CORRECT ANSWER - unit of work energy; 1 cal = 4.184 J
work - CORRECT ANSWER - occurs when a force acts over a distance
what are the 3 kinds of work in cellular biology - CORRECT ANSWER - chemical work,
transport work, and mechanical work
chemical work - CORRECT ANSWER - the production of complex molecules from
simpler ones
transport work - CORRECT ANSWER - involves the elimination of waste, up take of
nutrients, and maintenance of ion balances within the cell
mechanical work - CORRECT ANSWER - involves cell movement (motility) and
movement of intracellular structures
