AP Biology help » Cellular biologic » Cell functions » cellular Respiration » understanding Glycolysis
Explanation:

Glycolysis wake up in the cytosol (the fluid containing the organelles) that the cell. The following step in to move respiration, the citric mountain cycle, occurs in the mitochondria.

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Explanation:

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

Fermentation leader to the manufacturing of ethanol in yeast cells and also lactic acid in muscle cells.


Explanation:

Glycolysis occurs in the cytosol of cells. As soon as finished, the two pyruvate commodities are transported right into the mitochondria to go v the citric acid cycle, at a cost of 1 ATP per pyruvate. No the nucleus, no one the absorbent reticulum have any function in glycolysis or the citric mountain cycle.


Explanation:

The counter of glucose to 2 pyruvate molecules in glycolysis to produce a net complete of two straight ATP. Once fructose-1,6-bisphosphate start glycolysis, the bypasses the two steps connected that normally price one ATP each, therefore, there is no required input and the net full is four produced ATP.

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


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Example inquiry #5 : to move Respiration


Which of the following assets is not developed during glycolysis?


Possible Answers:

Oxygen


NADH


ATP


Pyruvate


Correct answer:

Oxygen


Explanation:

Glycolysis is the first step in to move respiration, and is watched in both aerobic and also anaerobic respiration. The products of glycolysis are pyruvate, NADH, ATP, and water. Oxygen is just a product of the light reactions that photosynthesis; it is consumed together a reactant in the electron move chain.


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Example inquiry #6 : cellular Respiration


Which that the following processes does no take place during glycolysis?


Possible Answers:

Four ATP molecule are created for every molecule the glucose, yet the net manufacturing is just two molecule of ATP


Two 

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molecules are produced


An end an outcome is the production of 3-carbon molecules the are later on fed right into the citric acid cycle


One molecule that glucose eventually yields 2 molecules the pyruvate


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


Correct answer:

Via a complex chain the steps,  and  move electrons come the process"s last electron acceptor,


Explanation:

Glycolysis, which occurs in the cytoplasm, is the first step of cellular respiration. Though it go not develop a huge amount that ATP through itself, it incorporates several vital steps that must take ar to yield a much more far-reaching amount of ATP later. Notable events that occur during this multi-step procedure include the malfunction of each glucose molecule into two 3-carbon pyruvate molecules, the production of two molecules that

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, and also the net production of 2 ATP molecules.

Unlike the following two actions (the citric acid cycle and oxidative phosphorylation), glycolysis can occur in the lack of oxygen. The only step given that is not part of glycolysis is the transfer of electron from carrier molecules to oxygen via a series of steps. This happens during oxidative phosphorylation and, unlike glycolysis, is an aerobic process.


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Example concern #7 : moving Respiration


In comparison come fermentation, the aerobic pathways the glucose metabolism yield much more __________.

 


Possible Answers:

acetaldehyde 


ethanol


adenosine triphosphate 


pyruvate


Correct answer:

adenosine triphosphate 


Explanation:

Fermentation is the metabolic procedure that takes ar in anaerobic environments to regenerate

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because that glycolysis, i m sorry takes place in both aerobic and also anaerobic environments. Because glycolysis is unaffected by the existence of oxygen, pyruvate concentrations will certainly be the exact same in either environment. During fermentation the cell alters the pyruvate right into acetaldehyde. Ethanol is likewise a product the fermentation. We would not expect to see an ext acetaldehyde or ethanol in aerobic metabolism.

Adenosine triphosphate (ATP) is the main product of cellular respiration, and also the molecular power of the cell. Aerobic metabolism outcomes in a much higher yield of these energy carrying molecules due to the fact that it have the right to use oxygen together a final electron acceptor in the electron transport chain.


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Example inquiry #8 : cellular Respiration


Where go glycolysis take location in the cell?


Possible Answers:

Nucleus


Mitochondria


Cytosol


Endoplasmic reticulum


Correct answer:

Cytosol


Explanation:

Glycolysis takes place in the cell cytosol, and also can take ar under anaerobic conditions. After ~ the completion of glycolysis, the product pyruvate is transported to the mitochondria because that the citric mountain cycle and also electron deliver chain.

The nucleus dwellings the cell"s DNA, and also the endoplasmic reticulum is affiliated with protein modification.


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Example inquiry #9 : moving Respiration


Which the the adhering to stages of cellular respiration generates ATP, regardless of the existence of oxygen?


Possible Answers:

Oxidative phosphorylation


Electron transport chain


Krebs cycle


Glycolysis


Citric acid cycle


Correct answer:

Glycolysis


Explanation:

Glycolysis is the procedure that switch glucose to pyruvate. The produces a full of 4 ATP, however consumes two ATP, for a net yield of 2 ATP. Glycolysis is not dependent top top the presence of oxygen and can take place in either aerobic or anaerobic environments.

The citric acid cycle, or Krebs cycle, is supplied to generate NADH native pyruvate. The NADH is then provided in the electron transfer chain to generate a proton gradient, which fuel oxidative phosphorylation. Because oxidative phosphorylation needs an oxygen molecule, the citric mountain cycle and also electron transport chain cannot proceed in anaerobic environments.


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Example concern #1 : to move Respiration


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 that ATP, but two molecules are provided to complete reactions during the initial measures of the process. With four molecules produced and two molecules consumed in the process, there is a network yield of two ATP from each glucose molecule in glycolysis

During ATP synthesis in the electron deliver chain, around 32 added ATP room generated.


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