BIOS 1120 UNIT 1 EXAM STUDY GUIDE
(WMU) EXAM WITH CORRECT
ANSWERS 2025
What is aerobic respiration and when does our ( correct
body use it? oxygen+sugar=CO2+H2O+ATP answers )
What is anaerobic respiration and when does our body use it?
( correct answers ) glucose=lactic acid+ATP
only so much oxygen to process so anaerobic respiration is
our backup. ex. drowning
What is entropy?( correct answers ) decrease in order
(increase in chaos)
How does entropy change during photosynthesis and cellular ( correc
respiration? answers ) Photosynthesis decreases entropy. t
Cellular respiration decreases entropy.
How does the sun convert mass into ( correct answers ) an
energy? entropy in our universe: increase in
heat, light, electromagnetism, radiation
What is a coupled reaction? ( correct answers ) where energy
released from breakdown of one compound is used to create
another compound
ex. eat something that has glucose which produces energy which is then
broken down. Enzymes use that energy.
ex. from professor: if you want to lift a heavy box to the fourth floor you'll
get helpers
What is an enzyme? ( correct answers ) acts as a catalyst to bring
about a specific biochemical reaction faster and easier. The energy put
forth is to make the enzyme to do the reaction.
ex. protein
How do enzymes work with ATP to encourage a reaction to occur?
( correct
What answers
is an endergonic reaction mean? ( correct answers )
) a coupledrequired
Examples? reactionexceeds energy Energy
released ex.photosynthesis
, What is an exergonic reaction? Examples? ( correct answers )
Energy released exceeds energy required
ex.cellular respiration
What are the two laws of thermodynamics? ( correct answers )
1.)Energy can not be created nor destroyed (never created from nothing)
2.)Energy conversion is not 100% efficient (ex. heat is lost when sun is
radiating down on earth)
What is potential energy? ( correct answers ) stored energy
ex. gas sitting in car tank, drawn bow before released, molecules (energy
is stored in covalent bonds)
True or False? ATP is stored potential energy? ( correct answers
) True What is kinetic energy? ( correct answers )
energy of motion
ex. waterfalls, electricity, heat, light
What is the definition of energy? ( correct answers ) the capacity
to do work forms: thermal, radiant, chemical, nuclear, electrical
ex. muscular work is chemical energy
What is the definition of work? ( correct answers ) the transfer of
energy to an object causing that object to move
What is a prokaryotic cell, what organelles are in one, and what are some
examples of prokaryotic cells? ( correct answers ) -DNA is located in
nucleoid region (no nucleus)
-no membrane bound organelles or nucleus
-most have cell walls
-smaller than
eukaryotic ex.
bacteria
[contain flagella and
pili]
What is a eukaryotic cell, what organelles are in one, and what are some
examples of eukaryotic cells? ( correct answers ) -DNA contained in
a double membrane nucleus
-Membrane enclosed organelles
-Protein cytoskeletons
ex. mold, yeast, fungi, plant, animal
[Animal cells contain: plasma membrane, nucleus, ribosomes, rough ER,
smooth ER, golgi apparatus, vesicles, mitochondria, lysosomes,
peroxisomes. Plant cells also contain: chloroplasts, vacuoles, cellulose-
containing cell walls]
(WMU) EXAM WITH CORRECT
ANSWERS 2025
What is aerobic respiration and when does our ( correct
body use it? oxygen+sugar=CO2+H2O+ATP answers )
What is anaerobic respiration and when does our body use it?
( correct answers ) glucose=lactic acid+ATP
only so much oxygen to process so anaerobic respiration is
our backup. ex. drowning
What is entropy?( correct answers ) decrease in order
(increase in chaos)
How does entropy change during photosynthesis and cellular ( correc
respiration? answers ) Photosynthesis decreases entropy. t
Cellular respiration decreases entropy.
How does the sun convert mass into ( correct answers ) an
energy? entropy in our universe: increase in
heat, light, electromagnetism, radiation
What is a coupled reaction? ( correct answers ) where energy
released from breakdown of one compound is used to create
another compound
ex. eat something that has glucose which produces energy which is then
broken down. Enzymes use that energy.
ex. from professor: if you want to lift a heavy box to the fourth floor you'll
get helpers
What is an enzyme? ( correct answers ) acts as a catalyst to bring
about a specific biochemical reaction faster and easier. The energy put
forth is to make the enzyme to do the reaction.
ex. protein
How do enzymes work with ATP to encourage a reaction to occur?
( correct
What answers
is an endergonic reaction mean? ( correct answers )
) a coupledrequired
Examples? reactionexceeds energy Energy
released ex.photosynthesis
, What is an exergonic reaction? Examples? ( correct answers )
Energy released exceeds energy required
ex.cellular respiration
What are the two laws of thermodynamics? ( correct answers )
1.)Energy can not be created nor destroyed (never created from nothing)
2.)Energy conversion is not 100% efficient (ex. heat is lost when sun is
radiating down on earth)
What is potential energy? ( correct answers ) stored energy
ex. gas sitting in car tank, drawn bow before released, molecules (energy
is stored in covalent bonds)
True or False? ATP is stored potential energy? ( correct answers
) True What is kinetic energy? ( correct answers )
energy of motion
ex. waterfalls, electricity, heat, light
What is the definition of energy? ( correct answers ) the capacity
to do work forms: thermal, radiant, chemical, nuclear, electrical
ex. muscular work is chemical energy
What is the definition of work? ( correct answers ) the transfer of
energy to an object causing that object to move
What is a prokaryotic cell, what organelles are in one, and what are some
examples of prokaryotic cells? ( correct answers ) -DNA is located in
nucleoid region (no nucleus)
-no membrane bound organelles or nucleus
-most have cell walls
-smaller than
eukaryotic ex.
bacteria
[contain flagella and
pili]
What is a eukaryotic cell, what organelles are in one, and what are some
examples of eukaryotic cells? ( correct answers ) -DNA contained in
a double membrane nucleus
-Membrane enclosed organelles
-Protein cytoskeletons
ex. mold, yeast, fungi, plant, animal
[Animal cells contain: plasma membrane, nucleus, ribosomes, rough ER,
smooth ER, golgi apparatus, vesicles, mitochondria, lysosomes,
peroxisomes. Plant cells also contain: chloroplasts, vacuoles, cellulose-
containing cell walls]
