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Stages of Energy Generation from Food Oxidation

19 Questions

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Stages of Energy Generation from Food Oxidation

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Questions and Answers

What is the formula for Energy Charge as mentioned in the text?

[ATP] + ½[ADP] (correct)

[ATP]

[ATP] + [ADP] + [AMP]

[ADP] + [Pi]

Which of the following energy charge values favors ATP-utilizing pathways?

0.5

1.0 (correct)

0.8

0.6

What regulates the Accessibility of Substrates according to the text?

Cell size

Signals like insulin (correct)

Different organelles

Presence of enzymes

How is phosphorylation potential calculated based on the information provided?

[ATP] [ADP] + [Pi] Signup and view all the answers

What is the typical range for maintaining Energy Charge?

0.80-0.95 Signup and view all the answers

In which pathways does a high-energy charge favor according to the text?

Anabolic pathways Signup and view all the answers

What primarily regulates activation and deactivation of enzymes according to the text?

Second messengers like cAMP Signup and view all the answers

What does insulin cause according to the text?

[Glucose] transporters insertion into plasma membrane Signup and view all the answers

Which value of Energy Charge favors ATP-generating pathways?

< 0.8 Signup and view all the answers

What is the relationship between Phosphorylation Potential and free-energy storage available in ATP?

Directly proportional Signup and view all the answers

What is the relationship between the Energy Charge and ATP utilization pathways?

Energy Charge below 0.9 favors catabolic pathways Signup and view all the answers

How is the phosphorylation potential calculated based on the formula provided?

[ATP] / ([ADP] + [Pi]) Signup and view all the answers

What is the primary role of second messengers like cAMP in metabolic reactions?

Coordinate and regulate metabolic reactions Signup and view all the answers

How does insulin influence the accessibility of substrates according to the text?

Increases access to substrates Signup and view all the answers

What effect does a high-energy charge have on metabolic pathways?

Favors ATP-generating pathways Signup and view all the answers

Which substance directly relates to the energy status of a cell?

[ATP] (adenosine triphosphate) Signup and view all the answers

Why is compartmentalization important for cells in terms of metabolic reactions?

Ensures strict regulation of anabolic and catabolic pathways Signup and view all the answers

What direct effect does a low-energy charge have on cellular pathways?

Promotes ATP-generating pathways Signup and view all the answers

Why is the activation and deactivation of enzymes crucial for metabolic reactions?

To control the rate of chemical reactions Signup and view all the answers