test five
how many molecules of ____would be produced by two cycle of the citric acid cycle
12
How many Atp molecules would be produced from one molecule of ___ when it passes through the oxidative phosphorylation process
2
how many molecules of ___would be released from the complete aerobic respiration of a molecule of sucrose (C12H22O11) a disacchardie
2
Assume a mitochondrion contains 58 NADH and 19 FADH2. If each of the 77 dinucleotides were used, approximately how many ATP molecules could be generated as a result of oxidative phosphorylation (chemiosmosis)? A) 36 B) 77 C) 173 D) 212 E) 1102
212
starting with Acetyl-coa how many of the following would be produced with three turns of the citric acid cycle
3 atp ,6 co2, 9NADH, 3FADh2
How many atp molecules can be formed by oxidative phosphorylation when all of the ___molecules produced from one cycle of citric acid cycle are used
30-36
how many NADH2 molecule are produced from the once cycle of ____?
4
During glycolysis, when glucose is catabolized to pyruvate, most of the energy of glucose is transformed into
6
approximately how many molecules of atp are produced from the complete oxidation of one molecule of ___ in cellular respriation
76
Most of the energy that enters electron transport enters as A) ATP. B) acetyl CoA. C) glucose. D) CO2. E) FADH2 and NADH.
FADH2 and NADH
which of the following statements about NAD+ is false
NAD+ has more chemical energy than NADH
Muscle cell in oxygen deprivation converts pyruvate lacatate _, and during this step ,muscle cell uses ____.
NAD+,
If an enzyme in solution is saturated with substrate, the most effective way to obtain a faster yield of products is to
NADH and Pyruvate
which of the following is a true distinction between fermentation and cellular respiration
NAOH is oxidazied by the electron transport chain in respiration only
the oxygen consumed during cellular respirations is involved directly in which process or event
accepting electrons at the end of the electron transport chain
which of the following enters the citric acid cycle and is formed in part by the removal of a carbon (CO2) from one molecule of pyuvate?
acetyl Coa
in the reaction A-B+c+heat
acetyl-Coa,nadh,H+and co2
the primarly role of oxygen in cellular respiration is to
act as an acceptor for electrons hydrogen forming water
How many total atp molecules are produced by ___
add more of the enzyme
what is the term used for the metabolic pathway in which glucose (c6h12o6) is degraded to carbon dioxide (co2) and water?
aerobic cellular respiration
which of the following statements about metabolism is incorrect
anabolism reaction are degradtive
What kind of metabolic poison would most directly interfere with glycolysis?
anelengent that closes mimers the structure of glucose but isnt mentioned
Which process could be compared to how rushing steam turns a water wheel? A) the citric acid cycle B) ATP synthase activity C) formation of NADH in glycolysis D) oxidative phosphorylation E) the electron transport system
atp syntase activity
Sucrose is a disaccharide, composed of the monosaccharides glucose and fructose. The hydrolysis of sucrose by the enzyme sucrase results in
breaking the bond between glucose and fructose and forming new bonds from the atoms of water
which of the following metabolic processes can occur without a net influx of energy from some other processes
c6h12o2+o2=6co2+6h20
in the process of cellular respiration____in the glucose molecule converted into
carbon dioxide & water
A chemical reaction that has a postive G is correctly described as
carrier protein acceptor electrons from Nadh
a major function of the mitochondrial inner membrane is the conversion of energy from electrons to the stored energy of the phosphate bond in atp to accomplish this function the inner mitochondrial membrane must have all of the following features except
carrier proteins to accept electrons from NADH.
each time a molecule (c6h12o6) is completely oxidized via aerobic respiration how many ____are required
cataysts
Whenever energy is transformed, there is always an increase in the
creation of a proton gradient
A+B-->C+D
endergonic
Carbon dioxide (co2) is released during which of the following stages of cellular respiration
exergonic; endergonic
the mechanism in which the end product of a metabolic pathway inhibits an earlier step in the pathway is known as
feedback inhibition
pyruvate is formed
glycolysis
Which metabolic pathway is common to both cellular respiration and fermentation?
glycosis
which of the following occurs in the cytosol of the cell
glycoysis and fermentation
the primary function of the mitchondrion is the production of atp .to carry out this function the mitchondrion must have all of the following except
high permeability to protons
an increase in the level of cellular Atp is likely to occur under which of the following conditions
increased activity of catabolic pathways decreased activity of anabolic pathways allosteric inhibition of anabolic pathways
which of the following is true of enzyme
increases rate of chemical by reactive energy barrier for catalysis to take place
which of the following is true for anabolic pathways
influences by physical chemical environment factor requires non protein cofactors
which of the following is not true of oxidative phosphorylation
it uses oxygen as the intial eletron donor highly regulated sequences to chemical reaction and they consume energy to build up polymers from monomers
which of the following statements about glycolysis is false
its an aerobic process
the energy released by the electron transport chain is used to pump ___into which location
mitchondrial intermembrane space
During aerobic respiration (oxidative phosphorylation) how many ___are involved
mitochondria matrix
what is the change in free energy of a system at chemical equilibum
no net change
When glucose (C6H12O6) is oxidized to CO2 and water in cellular respiration which of the following processes are in the right sequence
oxidation of glucose to pyruvate to oxidation of acetyl-coA to oxidation phosphorylation
which of the following produces the most ATP when glucose (c6h12o6) is completely oxidized to carbon dioxide (co2) and water
oxidation phosphorylation ( chemiosmosis)
Which metabolic process is most closely associated with intracellular membranes? A) substrate-level phosphorylation B) oxidative phosphorylation C) glycolysis D) the citric acid cycle E) alcohol fermentation
oxidative phosphorylation
The final electron acceptor of the electron transport chain that functions in oxidative phosphorylation is
oxygen
which of the following statements is not true about enzyme-catalyzed reaction
releases more energy than non catalyzed require energy to active enzyme -goes in direction toward chain equalibruim
During cellular respiration, acetyl CoA accumulates in which location?
retained in the pyruvate
the atp made during fermentation is generated by which of the following
substrate level phosphorylation
Which of the following statements concerning the metabolic degradation of glucose (c6h12o6) to carbon dioxide (CO2) and water is (are) true
the breakdown of water and carbon exergonic ,has free energy change of 686 cal/mol ,involves oxidation reduction or detox reactions
Most ___from catabolism is released during
the citric acid cycle
choose the pair of terms that correctly completes this sentence
the electron transport chain ;atp synthasis
which of the following statements is incorrect about an oxidation -reduction (or redox)reaction
the oxidating agent donates electrons a molecule is reduced it loses electrons
In glycolysis for each molecule of glucose oxidized to pyruvate
the potential energy of the product is less than that of the reactant
In addition to ___ what are the end products of glycolysis?
two molecule of atp are used and four molecules of atp are produced
