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Questions and Answers
Shown is the structure of a mitochondrion with different compartments labeled. Which of the numbers represents the most permeable membrane of the mitochondrion?
Shown is the structure of a mitochondrion with different compartments labeled. Which of the numbers represents the most permeable membrane of the mitochondrion?
- 1
- 2
- 3 (correct)
- 4
Protons are pumped across the mitochondrial inner membrane to accumulate in the
Protons are pumped across the mitochondrial inner membrane to accumulate in the
- mitochondrial matrix.
- intermembrane space. (correct)
- cytosol.
- electron-transport chain.
The low redox potential of NADH means that it has a
The low redox potential of NADH means that it has a
- tendency to give up electrons. (correct)
- low free energy.
- high electron affinity.
- very stable bond.
Which of the following has the lowest electron affinity?
Which of the following has the lowest electron affinity?
In oxidative phosphorylation in mitochondria, high-energy electrons are transferred to the electron-transport chain from activated carriers like NADH. Stage 1 of photosynthesis also uses an electron-transport chain to pump protons and make ATP. In this case, where do the high-energy electrons come from?
In oxidative phosphorylation in mitochondria, high-energy electrons are transferred to the electron-transport chain from activated carriers like NADH. Stage 1 of photosynthesis also uses an electron-transport chain to pump protons and make ATP. In this case, where do the high-energy electrons come from?
Shown is a chloroplast with labeled structures. The photosynthetic machinery is found in which of the compartments shown?
Shown is a chloroplast with labeled structures. The photosynthetic machinery is found in which of the compartments shown?
Which of the following statements regarding signal transduction cascades is FALSE?
Which of the following statements regarding signal transduction cascades is FALSE?
The proton flow through the transmembrane H+ carrier of ATP synthase results in
The proton flow through the transmembrane H+ carrier of ATP synthase results in
Cyclin(s) _________.
Cyclin(s) _________.
The pH of the mitochondrial matrix is ___________, which is ___________ than that of the intermembrane space.
The pH of the mitochondrial matrix is ___________, which is ___________ than that of the intermembrane space.
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