Identify All Correct Statements About the Basic Function of Fermentation.
Which of these enters the citric acid cycle?
acetyl CoA Acetyl CoA is a reactant in the citric acid bicycle.
In the citric acid cycle, ATP molecules are produced by
substrate-level phosphorylation note: substrate-level phosphorylation
Which of these is Not a production of the citric acid cycle?
acetyl CoA notE: Acetyl CoA enters the citric acrid wheel.
A glucose molecule is completely broken down to carbon dioxide and h2o in glycolysis and the citric acid wheel, but together these 2 processes yield just a few molecules of ATP. What happened to most of the energy that the jail cell obtains from the oxidation of glucose?
It is stored in NADH and FADH2
Which statement nearly the citric acrid cycle is correct?
The last reaction in the citric acrid cycle produces a production that is a substrate for the first reaction of the citric acrid cycle.
In mitochondrial electron transport, what is the directly role of O2?
to office as the final electron acceptor in the electron transport chain
How would anaerobic conditions (when no O2 is nowadays) affect the rate of electron transport and ATP production during oxidative phosphorylation? (Note that you should non consider the issue on ATP synthesis in glycolysis or the citric acid cycle.)
Both electron transport and ATP synthesis would terminate.
NADH and FADH2 are both electron carriers that donate their electrons to the electron send chain. The electrons ultimately reduce O2 to water in the terminal pace of electron send. Withal, the corporeality of ATP fabricated past electrons from an NADH molecule is greater than the amount made by electrons from an FADH2 molecule.
Which statement best explains why more ATP is made per molecule of NADH than per molecule of FADH2?
Fewer protons are pumped across the inner mitochondrial membrane when FADH2 is the electron donor than when NADH is the electron donor.
When the protein gramicidin is integrated into a membrane, an H+ channel forms and the membrane becomes very permeable to protons (H+ ions). If gramicidin is added to an actively respiring muscle jail cell, how would it touch on the rates of electron send, proton pumping, and ATP synthesis in oxidative phosphorylation? (Assume that gramicidin does not affect the production of NADH and FADH2 during the early stages of cellular respiration.)
Sort the labels into the correct bin according to the effect that gramicidin would accept on each procedure.
remains the same: proton pumping charge per unit, electron transport charge per unit, charge per unit of oxygen uptake
decreases(or goes to zero):rate of ATP synthesis, size of the proton gradient
The four stages of cellular respiration practice non function independently. Instead, they are coupled together considering one or more outputs from one phase functions as an input to another phase. The coupling works in both directions, equally indicated by the arrows in the diagram beneath. In this activity, yous volition identify the compounds that couple the stages of cellular respiration.
Drag the labels on the left onto the diagram to identify the compounds that couple each stage. Labels may exist used once, more in one case, or not at all.
Under anaerobic conditions (a lack of oxygen), the conversion of pyruvate to acetyl CoA stops.
Which of these statements is the correct explanation for this observation?
In the absence of oxygen, electron ship stops. NADH is no longer converted to NAD+, which is needed for the outset iii stages of cellular respiration.
Suppose that a cell’s need for ATP suddenly exceeds its supply of ATP from cellular respiration.
Which statement correctly describes how this increased demand would lead to an increased rate of ATP production?
ATP levels would fall at first, decreasing the inhibition of PFK and increasing the rate of ATP production.
What would happen to the cell’s rate of glucose utilization?
Glucose utilization would increase a lot.
The electrons stripped from glucose in cellular respiration stop up in which compound?
h2o At the cease of the electron transport chain, the electrons and hydrogen atoms are added to oxygen, forming water.
What happens at the terminate of the chain in the figure?
4 electrons combine with a molecule of oxygen and 4 protons.
Match each product of pyruvate metabolism with the status nether which information technology is produced.
Lactate: Fermentation in human muscle
ethanol: Fermentation in yeast and leaner
Acetyl CoA: Aerobic Oxidation
Sort the following items according to whether they are reactants or products in the anaerobic reduction of pyruvate during lactic acrid fermentation.
Reactants: NADH & Pyruvate
Products: NAD+ & Lactate
In musculus cells, fermentation produces _____.
In fermentation _____ is reduced and _____ is oxidized.
Which molecule is metabolized in a cell to produce energy for performing work?
True or fake? The potential energy in an ATP molecule is derived mainly from its three phosphate groups.
Which process is non part of the cellular respiration pathway that produces big amounts of ATP in a cell?
Which pace of the cellular respiration pathway can have place in the absence of oxygen?
Into which molecule are all the carbon atoms in glucose ultimately incorporated during cellular respiration?
Which of the post-obit statements about the electron send chain is true?
NADH and FADH2 donate their electrons to the concatenation.
Which phase of glucose metabolism produces the nigh ATP?
Electron transport and chemiosmosis
Truthful or false? The reactions that generate the largest amounts of ATP during cellular respiration take place in the mitochondria.
In the absence of oxygen, what is the net gain of ATP for each glucose molecule that enters glycolysis?
ii ATP Four ATP are fabricated, just two ATP are consumed to start the process of glycolysis.
Which metabolic pathway is mutual to both cellular respiration and fermentation?
In nigh cells, not all of the carbon compounds that participate in glycolysis and the citric acid bicycle are converted to carbon dioxide by cellular respiration. What happens to the carbon in these compounds that does not cease upwards as CO2?
The carbon compounds are removed from these processes to serve as edifice blocks for other complex molecules.
The carbon compounds are removed from these processes to serve equally building blocks for other complex molecules.
The firsthand energy source that drives ATP synthesis by ATP synthase during oxidative phosphorylation is the
H+ concentration across the membrane holding ATP synthase.
Which metabolic pathway is common to both fermentation and cellular respiration of a glucose molecule?
In mitochondria, exergonic redox reactions
provide the energy that establishes the proton slope.
The terminal electron acceptor of the electron transport chain that functions in aerobic oxidative phosphorylation is
What is the oxidizing amanuensis in the following reaction? Pyruvate + NADH + H+ → Lactate + NAD+
When electrons menses along the electron transport chains of mitochondria, which of the following changes occurs?
The pH of the matrix increases.
Most CO2 from catabolism is released during
Which of the post-obit statements accurately describes the function of a metabolic pathway involved in cellular respiration?
The function of glycolysis is to begin catabolism by breaking glucose into ii molecules of pyruvate, with a net yield of two ATP.
Glycolysis is the first stage in cellular respiration and does non depend on the presence of oxygen.
In cellular respiration, a series of molecules forming an electron transport chain alternately accepts and so donates electrons. What is the reward of such an electron transport chain?
The advantage of an electron ship chain is that a small amount of energy is released with the transfer of an electron between each pair of intermediates.
How will a healthy private’southward ATP production change during an eight-hour fast?
The private’south ATP product will not change significantly.
Identify all correct statements about the basic function of fermentation.
Select all that employ.
The basic function of fermentation is the regeneration of NAD+, which allows continued ATP production past glycolysis.
note:Fermentation occurs in the absenteeism of oxygen and does not yeild as much ATP. Read about fermentation.
Select the correct argument nearly cellular respiration.
Cellular respiration and breathing differ in that cellular respiration is at the cellular level, whereas breathing is at the organismal level.
Identify All Correct Statements About the Basic Function of Fermentation