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Chapter 62: Practice Questions
The following questions are about the complete aerobic respiration of one molecule of glucose.
Three major processes in aerobic respiration are represented by the circles.
The sketch of achondrion is shown below.
The site is where the ATP synthase is located.
The citric acid cycle is located at this location.
The most widespread pathway among Earth's organisms is lysis.
It appears that it evolved very early in the history of life.
A part of cellular respiration is shown in the diagram.
The figure below depicts a part of cellular respiration.
The third step in the process of glycolysis is called the PFK.
It makes the reaction of fructose 6-phosphate to fructose 1,6-biphosphate.
The cell's cytoplasm contains high levels ofATP.
Two reactions are said to be caused by ovodative phosphorylation.
In a hydroelectric power plant, the energy of falling water turns a turbine.
The mechanical energy from the turbine is converted into electrical energy by a generator.
In the case of aerobic respiration, water is formed and released.
Animals breathe in waste water.
This reaction is not endergonic because the energy in the form of ATP is on the right side of the equation.
Choice C isn't a correct statement because energy can't be created or destroyed.
The only thing that can be done is create or destroy ATP.
The choice A is incorrect because protons can only pass through the channels.
The production of ATP depends on this.
Choice B is not correct because of the small amount of ATP produced during the citric acid cycle.
The matrix of mitochondria is where the ETC is located.
During the Krebs cycle, only a small amount of ATP is produced.
The electron transport chain pumps protons across the cristae to create a gradient of protons.
As protons flow through the ATP synthase channels, most ATP is produced by Chemiosmosis.
The first stage of aerobic respiration is carried out by Aerobic organisms.
The citric acid cycle uses pyruvate as a raw material, so Choice C isn't correct.
Choice D isn't correct because the ETC doesn't produce anyATP.
It sets the stage for the production of the molecule.
Oxygen is the final electron acceptor and Choice A is not correct.
It doesn't have protons.
The mechanism by which ATP is produced during the citric acid cycle is what Choice B is not correct about.
Choice D isn't correct because it is the ETC that pumps protons across the cristae.
There is a process called Process A.
The citric acid cycle is represented by Process B.
There is a process called Process C. The cytoplasm is where Process A takes place.
NADH is not released by Process B.
The electron transport chain is part of Process C. It produces the most oxygen.
The inner matrix is what it is.
The fossil record shows that the first organisms on Earth had no internal membranes.
Choices A and B don't explain anything about glycolysis.
The yeast is aerobic.
Choice D doesn't explain anything about the theory of free-living cells.
The process by which aerobic respiration evolved in early life is explained by choice D.
The production of ATP is the most important event in respiration.
There is no CO 2 produced.
Without free oxygen in the atmosphere, the first organisms on Earth were anaerobes.
Free oxygen is required for Choices A, B, and D.
Choice A is an example of negative feedback because when there is enough of the molecule in the cell to meet demand, respiration slows down, conserves valuable molecule and energy for other functions.
During the citric acid cycle, this process releases a small amount of energy.
The purpose of the ETC is to build a differential between the inner matrix and the outer compartment of the mitochondria.
There is a great potential energy.
The energy is released when the protons flow through the channels.
The energy phosphorylates.
This is a way in which ATP is made.
Choice C describes the activity of the ATP synthase channel.
The figure doesn't show the ATP synthase channel.
The flow of electrons is exergonic.
The reverse is also true.
The graph for choice A is the only one that shows the correct relationship.
There are particles going down a channel.
The force of that flow makes it possible tophosphorylate the ADP into the ATP.
This process releases energy.
Endergonic means the pumping of protons against a cristae membrane to the outer compartment.
In a hydroelectric power plant, the potential energy is converted into mechanical and electrical energy.
In achondrion, electrons flow down the ETC, releasing energy along the way.
The released energy is used to create a cristae gradient.
The chemical bond energy is converted to kinetic energy when the protons flow down the proton gradient.
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