MCB3020 ASGHARI UF EXAM 2
2025 |GUARANTEED ACCURATE
ANSWERS
Metabolism - ACCURATE ANSWERS✔✔ the sum total of all the
chemical reactions that occur within a cell.
Catabolic pathway - ACCURATE ANSWERS✔✔ breaking down
complex organic molecules into their smaller subcomponents.
Which type of reactions are catabolic? - ACCURATE ANSWERS✔✔
hydrolysis reactions.
Catabolic reactions are ________________________ - ACCURATE
ANSWERS✔✔ energy conserving reactions that provide a ready source
of reducing power (electrons).
Anabolic reactions - ACCURATE ANSWERS✔✔ the synthesis of
complex molecules from their simpler subunits.
Which types of reactions are anabolic? - ACCURATE ANSWERS✔✔
dehydration synthesis reactions.
Which reactions require energy from reducing power of electrons? -
ACCURATE ANSWERS✔✔ anabolic reactions.
,Where do the anabolic reactions get their electrons for energy? -
ACCURATE ANSWERS✔✔ from catabolic reactions who provide
reducing power through electrons.
How are microbes involved in elemental cycling? - ACCURATE
ANSWERS✔✔ nitrogen fixation, nitrification, denitrification, and
converting CO2 and CH4 to organic molecules.
Nitrogen fixation - ACCURATE ANSWERS✔✔ when microbes convert
unusable nitrogen gas (N2) to useful ammonia (NH3).
Nitrification - ACCURATE ANSWERS✔✔ conversion of ammonia
(NH3) to nitrate (NO3).
Denitrification - ACCURATE ANSWERS✔✔ conversion of nitrate
(NO3) to nitrogen gas (N2)
Energy - ACCURATE ANSWERS✔✔ defined as the capacity to cause
change or do work
What are the 2 units of energy - ACCURATE ANSWERS✔✔ calorie
and joule
Calorie - ACCURATE ANSWERS✔✔ amount of heat energy needed to
raise the temperature of one gram of water from 14.5 celsius to 15.5
, Joule - ACCURATE ANSWERS✔✔ unit of work energy; 1 cal = 4.184
J
Work - ACCURATE ANSWERS✔✔ occurs when a force acts over a
distance
What are the 3 kinds of work in cellular biology - ACCURATE
ANSWERS✔✔ chemical work, transport work, and mechanical work
Chemical work - ACCURATE ANSWERS✔✔ the production of
complex molecules from simpler ones
Transport work - ACCURATE ANSWERS✔✔ involves the elimination
of waste, up take of nutrients, and maintenance of ion balances within
the cell
Mechanical work - ACCURATE ANSWERS✔✔ involves cell
movement (motility) and movement of intracellular structures
Thermodynamics - ACCURATE ANSWERS✔✔ study of energy change
in a system
System - ACCURATE ANSWERS✔✔ a collection of matter
2025 |GUARANTEED ACCURATE
ANSWERS
Metabolism - ACCURATE ANSWERS✔✔ the sum total of all the
chemical reactions that occur within a cell.
Catabolic pathway - ACCURATE ANSWERS✔✔ breaking down
complex organic molecules into their smaller subcomponents.
Which type of reactions are catabolic? - ACCURATE ANSWERS✔✔
hydrolysis reactions.
Catabolic reactions are ________________________ - ACCURATE
ANSWERS✔✔ energy conserving reactions that provide a ready source
of reducing power (electrons).
Anabolic reactions - ACCURATE ANSWERS✔✔ the synthesis of
complex molecules from their simpler subunits.
Which types of reactions are anabolic? - ACCURATE ANSWERS✔✔
dehydration synthesis reactions.
Which reactions require energy from reducing power of electrons? -
ACCURATE ANSWERS✔✔ anabolic reactions.
,Where do the anabolic reactions get their electrons for energy? -
ACCURATE ANSWERS✔✔ from catabolic reactions who provide
reducing power through electrons.
How are microbes involved in elemental cycling? - ACCURATE
ANSWERS✔✔ nitrogen fixation, nitrification, denitrification, and
converting CO2 and CH4 to organic molecules.
Nitrogen fixation - ACCURATE ANSWERS✔✔ when microbes convert
unusable nitrogen gas (N2) to useful ammonia (NH3).
Nitrification - ACCURATE ANSWERS✔✔ conversion of ammonia
(NH3) to nitrate (NO3).
Denitrification - ACCURATE ANSWERS✔✔ conversion of nitrate
(NO3) to nitrogen gas (N2)
Energy - ACCURATE ANSWERS✔✔ defined as the capacity to cause
change or do work
What are the 2 units of energy - ACCURATE ANSWERS✔✔ calorie
and joule
Calorie - ACCURATE ANSWERS✔✔ amount of heat energy needed to
raise the temperature of one gram of water from 14.5 celsius to 15.5
, Joule - ACCURATE ANSWERS✔✔ unit of work energy; 1 cal = 4.184
J
Work - ACCURATE ANSWERS✔✔ occurs when a force acts over a
distance
What are the 3 kinds of work in cellular biology - ACCURATE
ANSWERS✔✔ chemical work, transport work, and mechanical work
Chemical work - ACCURATE ANSWERS✔✔ the production of
complex molecules from simpler ones
Transport work - ACCURATE ANSWERS✔✔ involves the elimination
of waste, up take of nutrients, and maintenance of ion balances within
the cell
Mechanical work - ACCURATE ANSWERS✔✔ involves cell
movement (motility) and movement of intracellular structures
Thermodynamics - ACCURATE ANSWERS✔✔ study of energy change
in a system
System - ACCURATE ANSWERS✔✔ a collection of matter
