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Cellular Respiration and Energy Production Quiz

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Cellular Respiration and Energy Production Quiz

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Questions and Answers

What is the primary purpose of cellular respiration?

For growth and development

To maintain homeostasis

For the movement of materials

For the building/breaking down of molecules (correct)

In which step of cellular respiration does the oxidation of sugar occur?

Oxidative phosphorylation

Redox reactions

Citric acid cycle/Krebs cycle

Glycolysis (correct)

What does FADH2 represent in cellular respiration?

An electron carrier (correct)

A cofactor

An oxidized form of FAD

A redox enzyme

What is the function of coenzymes in cellular respiration?

To assist in the catalysis of a reaction Signup and view all the answers

Which type of reaction involves one species being oxidized while another is reduced?

Redox reactions Signup and view all the answers

What is the main role of electron carriers in cellular respiration?

To hold electrons and protons Signup and view all the answers

Where does glycolysis take place?

Cytoplasm Signup and view all the answers

What is the purpose of the investment phase in glycolysis?

To trap the substrate in the cell Signup and view all the answers

Which molecule is formed as a result of the phosphorylation of glucose by ATP in step 1 of glycolysis?

Glucose 6-phosphate Signup and view all the answers

What happens to the dihydroxyacetone phosphate produced in step 4 of glycolysis?

It is isomerized to form glyceraldehyde 3-phosphate Signup and view all the answers

Which molecule is oxidized in step 6 of glycolysis?

Glyceraldehyde-3-phosphate Signup and view all the answers

What is formed as a result of the removal of water from 2-phosphoglycerate in step 9 of glycolysis?

High-energy enol phosphate linkage (phosphoenolpyruvate) Signup and view all the answers

What is the net yield of ATP in glycolysis?

+2 ATP Signup and view all the answers

What is the purpose of the transfer of the high phosphate group to ADP in step 10 of glycolysis?

To form ATP and pyruvate completing glycolysis Signup and view all the answers

What happens to the phosphate ester linkage in 3-phosphoglycerate in step 8 of glycolysis?

It moves from carbon 3 to carbon 2 to form 2-phosphoglycerate Signup and view all the answers

What does fructose 1,6 bisphosphate undergo in step 4 of glycolysis?

Hydrolysis/cleavage Signup and view all the answers