Explanation:

The citric acid cycle, likewise known together the Kreb"s cycle, occurs in ~ the mitochondria of eukaryotic cells. In prokaryotic cells, it wake up in the cytosol.

You are watching: Does glycolysis occur inside or outside the mitochondria


Explanation:

The citric mountain cycle takes location in the mitochondrial matrix.

Glycolysis takes location in the cytosol, and also the electron deliver chain involves both the intermembrane room and the inner mitochondrial membrane.

Pyruvate from glycolysis is transported right into the mitochondrial procession for the citric mountain cycle. Energy from the citric acid cycle permits protons to be pumped come the intermembrane space. The electron carry chain requires proteins along the inner mitochondrial membrane, ultimately resulting in the activation that ATP synthase because of the flow of protons follow me their gradient.


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Example concern #53 : moving Respiration


A sample the rats were fed glucose

*
 containing radiation oxygen. After ~ a couple of minutes, whereby would the radiation oxygen be found?


Possible Answers:

*


*



*


*


Correct answer:


Explanation:

In moving respiration, glucose an initial undergoes glycolysis and is broken down right into two pyruvate molecules. Together the pyruvate passes through the citric mountain cycle, three molecules of 

*
 are produced. The radiation oxygen molecules would be discovered in the 
*
.

*
 is formed when electrons eliminated from glucose are provided to reduce 
*
*
 is produced by the phosphorylation of 
*
. The oxygen in 
*
 enters the mitochondrion as gaseous molecule oxygen indigenous the atmosphere, no from glucose. Finally, 
*
is decreased to water in to move respiration and also serves together a reactant, quite than a product, in cell metabolism.


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Example question #54 : moving Respiration


Where go the Krebs cycle take place?


Possible Answers:

On the within membrane the the mitochondria


Mitochondrial matrix


In the cytosol


Intermembrane an are of the mitochondria


Correct answer:

Mitochondrial matrix


Explanation:

The Krebs bicycle takes location in the mitochondrial matrix. The assets of glycolysis, i m sorry takes location in the cytosol, are brought to the mitochondria because that the Krebs cycle and also electron transfer chain. The electron carrier generated during the Krebs cycle (NADH and also FADH2) space then supplied in the electron carry chain, i beg your pardon takes place on the inner membrane that the mitochondria.


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Example question #55 : cellular Respiration


Which the the complying with molecules is produced during the Krebs cycle?

I. FADH2

II. ATP

III. Acetyl-CoA


Possible Answers:

II and also III


I and II


II only


I only


Correct answer:

I and II


Explanation:

A turn of the Krebs bicycle produces one ATP, 3 NADH, one FADH2, and two CO2.

Acetyl-CoA is not developed during Krebs cycle. The is produced from the decarboxylation the a pyruvate molecule, i m sorry occurs prior to the Krebs cycle deserve to begin. Each revolve of Krebs cycle is initiated by one acetyl-CoA molecule. Remember that there are two acetyl-CoA developed from the 2 pyruvate molecule (end product that glycolysis). Because that every glucose molecule, the Krebs bicycle produces two cycles: two ATP, six NADH, two FADH2, and also four CO2.


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Example inquiry #56 : cellular Respiration


The ratio of carbons in one acetyl-CoA molecule to one glucose molecule is __________.


Possible Answers:
Correct answer:

*


Explanation:

Acetyl-CoA is the molecule that enters as the primary reactant in the Krebs cycle.

During glycolysis glucose is the primary reactant. Glucose contains six carbons. The procedure of glycolysis converts one molecule of glucose right into two molecules of pyruvate with 3 carbons each. Pyruvate then undergoes a decarboxylation reaction prior to entering the Krebs cycle. Every pyruvate loses one carbon to develop carbon dioxide throughout this reaction, v the finish product that acetyl-CoA. Acetyl-CoA is, thus, a two-carbon chain.

The ratio of carbon in acetyl-CoA to carbon in glucose is two-to-six, or 1:3.


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Example inquiry #57 : cellular Respiration


Under anaerobic conditions, a eukaryotic cell will certainly not undergo the Krebs cycle. Why is this?


Possible Answers:

Lack of NAD+ and also FADH+


Lack that NADH and also FADH2


The reactant for the Krebs cycle is oxygen


None that the various other answers


The end product because that the Krebs bike is oxygen


Correct answer:

Lack the NAD+ and FADH+


Explanation:

The duty of the Krebs bike is to create the intermediates NADH and FADH2, which will serve together electron donors in the electron move chain (ETC). At the very same time, the ETC creates NAD+ and also FADH+ as byproducts. The assets can then be turned roughly to continue fueling the Krebs cycle. Because the and so on will not duty in one anaerobic environment, neither will certainly the Krebs cycle. The reactants will certainly not be replenished, and the cycle will be can not to continue.

Oxygen is no directly associated as a reactant or product of the Krebs cycle. Oxygen is only straight used as an electron receptor in the electron move chain.


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Example concern #58 : to move Respiration


Which of the following is not a product formed throughout the citric mountain cycle?


Possible Answers:

CO2


NAD+


FADH2


GTP


H+


Correct answer:

NAD+


Explanation:

NAD+ and also FADH are supplied as reaction in the citric acid cycle to make NADH and FADH2, i beg your pardon are used in the electron deliver chain come convert additional ADP right into ATP. Every one of the various other selections are products in the citric acid cyclce. Proton (H+) room a byproduct when NAD+ is convert to NADH. Carbon dioxide (CO2) is produced during carbohydrate conversions in the cycle. One GTP molecule is created by the cycle, and contains nearly equivalent energy to ATP.


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Example concern #59 : to move Respiration


Which that the adhering to is an example of one anabolic reaction?


Possible Answers:

Glucose-6-phosphate being isomerized to kind fructose-6-phosphate


Citrate being converted to ketoglutarate


Glucose gift converted to two pyruvate molecules


Acetyl CoA combining with oxaloacetate to kind citrate


Correct answer:

Acetyl CoA combining v oxaloacetate to type citrate


Explanation:

An anabolic reaction is one in which bigger molecules room made indigenous combining smaller molecules. Even without knowing the precise mechanics that the reactions given in the answer choices, we know that we are in search of a reaction in i beg your pardon multiple molecules combine to form a single molecule.

Out of the options, there is just one time whereby a larger molecule is made by the combination of two smaller sized ones: when acetyl CoA (2 carbons) and also oxaloacetate (4 carbons) come with each other in stimulate to develop citrate (6 carbons).

The generation the pyruvate native glucose results in two smaller sized molecules from one larger molecule; this is a catalysis reaction. The counter of glucose-6-phosphate come fructose-6-phosphate is an isomerization reaction. The shift from citrate to ketoglutarate is processed v an intermediate, but is at some point a catalysis reaction.

See more: In A Worksheet, The Intersection Of A Row And A Column Is Called A


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Example inquiry #60 : to move Respiration


Which of the complying with processes wake up without oxygen?


Possible Answers:

Krebs cycle 


Citric acid cycle


Electron move chain


Fermentation


Correct answer:

Fermentation


Explanation:

Fermentation is a catabolic procedure which does not need oxygen. In contrast, Krebs cycle (citric acid cycle) and oxidative phosphorylation (chemiosmosis and electron transport) do use oxygen. Aerobic respiration is much an ext efficient than anaerobic respiration in creating ATP.


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