Q3.9. For which of the following is potential energy DECREASING? (Hint: Click he
ID: 278149 • Letter: Q
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Q3.9. For which of the following is potential energy DECREASING? (Hint: Click here to see an overview of the ETC.) oli O Protons moving from the mitochondrial matrix to the intermembrane space O ADP gaining a phosphate group to become a molecule of ATP O Two protons being moved closer toward each other O Electrons moving from Complex IV to O2 Q3.10. What would happen to you, metabolically, if all your mitochondria were destroyed? O You would have much less ATP available to think, move muscles, etc O You would have many fewer electrons available to think, move muscles, etc. eel Anto You would have much less oxygen available to think, move muscles, etc. O You would have much less glucose available to think, move muscles, etc ews MLB>Explanation / Answer
Q3.9. B
The energy released by electrons flowing through this electron transport chain is used to transport protons across the inner mitochondrial membrane, in a process called electron transport. This generates potential energy in the form of a pH gradient .
This store of energy is tapped when protons flow back across the membrane and down the potential energy gradient, through a large enzyme called ATP synthase, this process is known aschemiosmosis. The ATP synthase uses the energy to transform adenosine diphosphate (ADP) into adenosine triphosphate, in a phosphorylation reaction.
Q3.10..A
The most prominent roles of mitochondria are to produce the energy currency of the cell, ATP through respiration and to provide this energy to regulate cellular metabolism.
It depends on the cell. Some cells can survive for quite some time on glycolysis alone. Of course, most of these types of cells do not have very many mitochondria to begin with.
Cells that normally need many mitochondria will quickly die if they lose them, While mitochondria are mainly involved in energy generation and energy supply.
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