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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?
Stage two of photosynthesis (or the light-independent reactions) uses which input molecules to produce organic food molecules?
Stage two of photosynthesis (or the light-independent reactions) uses which input molecules to produce organic food molecules?
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
How do the high-energy electrons of activated carriers contribute to forming the high-energy phosphate bonds of ATP?
How do the high-energy electrons of activated carriers contribute to forming the high-energy phosphate bonds of ATP?
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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