What is the name of the molecule complex that escorts the acetyl group into Kreb's cycle?
oxidase
Co-enzyme B
Co-enzyme A
anti-oxidant
According to your book, the two main types of fermentation are called
alcoholic and aerobic
lactic acid and anaerobic
aerobic and anaerobic
alcoholic and lactic acid
During one turn, the Krebs cycle produces
glucose
oxygen
electron carriers
lactic acid
The conversion of pyruvic acid into lactic acid requires
ATP
alcohol
NADH
Cellular respiration is called an aerobic process because it requires
exercise
light
Unlike photosynthesis, cellular respiration occurs in
all but plant cells
plant cells only
animal cells only
all eukaryotic cells
Which process is used to produce beer and wine?
alcoholic fermentation
the Krebs cycle
glycolysis
lactic acid fermentation
What is the weak electron carrier that enters Kreb's cycle after ATP is produced?
FAD
FADH+
NAD+
NADP+
All of the following are sources of energy during exercise EXCEPT
cellular respiration
stored ATP
The primary electron carrier produced after reduction occurs in glycolysis AND Kreb's cycle is called
NADPH
FADH
None of the above
According to your reading, when the body needs to exercise for longer than 90 seconds, it must generate ATP mainly by carrying out
At the end of cellular respiration, what happens to the oxygen?
becomes water
becomes glucose
becomes CO2
becomes electrons
Glycolysis provides a cell with a net gain of
18 ATP molecules
36 ATP molecules
4 ATP molecules
2 ATP molecules
What are the reactants in the equation for cellular respiration?
oxygen and lactic acid
glucose and oxygen
water and glucose
carbon dioxide and water
Photosynthesis is to chloroplasts as cellular respiration is to
mitochondria
chloroplasts
cytoplasm
nucleus
Cellular respiration releases energy by breaking down
food molecules
water
carbon dioxide
The products of photosynthesis are
reactants of cellular respiration
reactants of fermentation
products of glycolysis
products of cellular respiration
Which of the following is NOT a stage of cellular respiration
electron transport
fermentation
Krebs cycle
Which of these is a product of cellular respiration
all of the above
Oxygen is MOST important to cellular respiration because...
it keeps plants healthy
it pulls electrons off NADH and down ETC
it charges the photosystems
it is needed to make water
Which of the following passes high-energy electrons into the electron transport chain?
citric acid
NADH AND FADH2
ATP and ADP
acetyl-CoA
Another name for the Krebs cycle is the ______ cycle.
acetic acid
malic acid
formic acid
Which of these processes takes place in the cytoplasm's fluid inside of a cell?
The starting molecule for the Krebs cycle is
pyruvic acid
coenzyme A
The Krebs cycle occurs in the part of the mitochondria called the
matrix
stroma
mitoplasm
The starting molecule for glycolysis is
ADP
Most of the ATP made in cellular respiration are produced in
Kreb's cycle
ATP Synthase
Which process does NOT release energy from glucose?
photosynthesis
Cellular respiration uses one molecule of glucose to produce
34 ATP molecules
38 ATP molecules
Which organism is not likely to carry out cellular respiration?
anaerobic bacterium
tree
mushroom
tiger
In the presence of oxygen, glycolysis is followed by
The energy of the electrons passing along the ETC is used to make
Which of the following is the most direct cause of most ATP production in cellular respiration
protons moving through ATP synthase
glucose splitting
electrons moving down ETC
presence of oxygen
Breathing heavily after running a race is your body's way of
repaying an oxygen debt, converting lactic acid to pyruvic acid
making more citric acid
recharging the ETC
restarting glycolysis
