AP Biology assist » Cellular biological » Cell features » moving Respiration » understanding Glycolysis
Explanation:

Glycolysis happens in the cytosol (the liquid containing the organelles) that the cell. The next step in moving respiration, the citric acid cycle, occurs in the mitochondria.

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Explanation:

Fermentation oxidizes molecule of NADH come NAD+ for this reason the cell deserve to have oxidizing agents for any type of subsequent glycolysis reactions. The does not, however, produce any kind of usable energy in the process.

Fermentation leads to the production of ethanol in yeast cells and lactic mountain in muscle cells.


Explanation:

Glycolysis wake up in the cytosol that cells. As soon as finished, the 2 pyruvate assets are transported right into the mitochondria come go with the citric acid cycle, in ~ a cost of 1 ATP per pyruvate. Neither the nucleus, nor the endoplasmic reticulum have any duty in glycolysis or the citric mountain cycle.


Explanation:

The counter of glucose to 2 pyruvate molecule in glycolysis produces a net complete of two direct ATP. As soon as fructose-1,6-bisphosphate beginning glycolysis, that bypasses the two steps affiliated that normally price one ATP each, therefore, there is no forced input and also the net complete is four produced ATP.

We have to remember the each step past the switch of fructose-1,6-bisphosphate come glyceraldehyde-3-phosphate and dihydroxyacetone phosphate happens twice, or we would come up through two ATP created.


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Example concern #5 : Cell features


Which of the following commodities is not created during glycolysis?


Possible Answers:

ATP


NADH


Oxygen


Pyruvate


Correct answer:

Oxygen


Explanation:

Glycolysis is the an initial step in moving respiration, and is viewed in both aerobic and also anaerobic respiration. The assets of glycolysis are pyruvate, NADH, ATP, and also water. Oxygen is just a product the the irradiate reactions of photosynthesis; the is consumed as a reactant in the electron move chain.


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Example concern #6 : Cell features


Which of the adhering to processes does no take place throughout glycolysis?


Possible Answers:

Two 

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molecules are produced


Four ATP molecules are developed for every molecule of glucose, however the net production is only two molecules of ATP


Via a facility chain of steps,  and  transfer electrons come the process"s final electron acceptor,


An end an outcome is the manufacturing of 3-carbon molecules the are later on fed into the citric mountain cycle


One molecule of glucose at some point yields 2 molecules of pyruvate


Correct answer:

Via a complicated chain of steps,  and  carry electrons to the process"s final electron acceptor,


Explanation:

Glycolysis, which wake up in the cytoplasm, is the an initial step of to move respiration. Though it walk not produce a big amount of ATP by itself, it incorporates several essential steps that have to take location to productivity a lot more significant amount of ATP later. Notable occasions that occur throughout this multi-step procedure include the failure of each glucose molecule into two 3-carbon pyruvate molecules, the manufacturing of 2 molecules the

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, and the net production of 2 ATP molecules.

Unlike the following two procedures (the citric acid cycle and oxidative phosphorylation), glycolysis can take place in the lack of oxygen. The only step provided that is not part of glycolysis is the transport of electron from transport molecules come oxygen via a series of steps. This happens throughout oxidative phosphorylation and, unequal glycolysis, is an aerobic process.


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Example concern #1 : expertise Glycolysis


In comparison to fermentation, the aerobic pathways the glucose line yield more __________.

 


Possible Answers:

ethanol


pyruvate


acetaldehyde 


adenosine triphosphate 


Correct answer:

adenosine triphosphate 


Explanation:

Fermentation is the metabolic process that takes location in anaerobic environments to regenerate

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because that glycolysis, i beg your pardon takes place in both aerobic and anaerobic environments. Because glycolysis is unaffected by the existence of oxygen, pyruvate concentrations will be the very same in either environment. Throughout fermentation the cell changes the pyruvate into acetaldehyde. Ethanol is additionally a product that fermentation. We would not expect to see more acetaldehyde or ethanol in aerobic metabolism.

Adenosine tree phosphate (ATP) is the main product of cellular respiration, and the molecular power of the cell. Aerobic metabolism outcomes in a much greater yield of these power carrying molecules as result of the reality that it have the right to use oxygen together a final electron agree in the electron carry chain.


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Example concern #1 : understanding Glycolysis


Where does glycolysis take location in the cell?


Possible Answers:

Mitochondria


Nucleus


Cytosol


Endoplasmic reticulum


Correct answer:

Cytosol


Explanation:

Glycolysis takes place in the cabinet cytosol, and can take location under anaerobic conditions. After the completion of glycolysis, the product pyruvate is transported come the mitochondria for the citric acid cycle and also electron carry chain.

The nucleus dwellings the cell"s DNA, and the absorbent reticulum is involved with protein modification.


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Example inquiry #1 : cellular Respiration


Which the the complying with stages of cellular respiration generates ATP, regardless of the existence of oxygen?


Possible Answers:

Glycolysis


Citric acid cycle


Krebs cycle


Oxidative phosphorylation


Electron carry chain


Correct answer:

Glycolysis


Explanation:

Glycolysis is the process that converts glucose come pyruvate. It produces a full of 4 ATP, but consumes 2 ATP, for a network yield of two ATP. Glycolysis is no dependent on the visibility of oxygen and also can take place in one of two people aerobic or anaerobic environments.

The citric mountain cycle, or Krebs cycle, is supplied to create NADH from pyruvate. The NADH is then offered in the electron carry chain to generate a proton gradient, which fuels oxidative phosphorylation. Due to the fact that oxidative phosphorylation calls for an oxygen molecule, the citric acid cycle and electron deliver chain cannot continue in anaerobic environments.


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Example concern #1 : understanding Glycolysis


What is the net production of ATP from one glucose molecule in glycolysis?


Possible Answers:

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Correct answer:


Explanation:

Glycolysis produces 4 molecules the ATP, however two molecules are provided to finish reactions during the initial steps of the process. With four molecules produced and also two molecules consumed in the process, there is a network yield of 2 ATP from each glucose molecule in glycolysis

During ATP synthetic in the electron transfer chain, approximately 32 extr ATP space generated.


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