What would occur if the hydrogen ion concentration in the intermembrane space and the matrix reach equilibrium?

What would occur if the hydrogen ion concentration in the intermembrane space and the matrix reach equilibrium?

What would be the immediate result if the hydrogen ion concentration in the intermembrane space and the matrix reached equilibrium? A. The conversion of NAD+ to NADH would stop.

What happens to the concentration of hydrogen ions in the intermembrane space and the matrix as electrons move down the ETC?

What happens to the concentration of H+ in the intermembrane space and the matrix as electrons move down the ETC? The concentration of the intermembrane increases while the concentration of the matrix decreases. Where does the H+ come from that makes ATP synthase work? To create hydrogen ions.

What would be the result if the thylakoid membrane was highly permeable to hydrogen ions quizlet?

If the thylakoid membrane was highly permeable to hydrogen ions, then the electron transfer chain would not be able to produce a hydrogen ion gradient across the membrane. Hydrogen ions would not flow through ATP synthase, and ATP synthesis would cease.

What would be the result if oxygen became unavailable to human cells?

During the process of cellular respiration, what is the total number of ATP produced per glucose molecule? What would be the result if oxygen became unavailable to the cell? A. Glycolysis would stop.

What are degradative reactions that break down molecules?

It may be categorized into two: catabolism and anabolism. Catabolism refers to the processes that involve a series of degradative chemical reactions that break down complex molecules into smaller units. It often releases energy in the process. Thus, catabolism involves destructive metabolic processes.

What happens if electron transport chain doesn’t work?

Uncoupling the electron transport chain would inhibit fermentation and decrease ATP production, a potentially dangerous situation. If electron transport doesn’t produce ATP, then much more sugar must be metabolized for energy needs. Very low production of ATP would be lethal.

What happens to the concentration of hydrogen in the intermembrane space?

What happens to hydrogen ions (protons) during the electron transport chain? The high concentration of hydrogen ions in the intermembrane space is used to power ATP synthase as these hydrogen ions are allowed to flow back through a channel in ATP synthase.

What is the effect of H+ accumulation in the intermembrane space?

What is the effect of proton accumulation in the intermembrane space? The accumulation of protons decreases pH in the intermembrane space and creates a proton gradient.

Is the thylakoid membrane permeable to hydrogen ions?

The hydrogen ions are allowed to pass through the thylakoid membrane through an embedded protein complex called ATP synthase. The flow of hydrogen ions through ATP synthase is called chemiosmosis, because the ions move from an area of high to low concentration through a semi-permeable structure.

What would happen if the electron transport chain stopped working in photosynthesis?

The plant would probably die.

What would happen if oxygen were not available?

If there was no oxygen available, aerobic respiration would stop and organsims that rely on aerobic respiration would die. Without aerobic respiration, the anaerobic process of glycolysis produces a net yieldof 2 ATP from one glucose molecule.

What happens if there is no oxygen in electron transport chain?

Explanation: Oxygen is the final electron acceptor in the electron transport chain, which allows for oxidative phosphorylation. Without oxygen, the electrons will be backed up, eventually causing the electron transport chain to halt.

How does cytochrome oxidase pump electrons across the membrane?

Cytochrome oxidase donates the electrons to oxygen, and water is formed. Cytochrome oxidase also pumps protons across the membrane. The hydrogen concentration is much greater in the intermembrane space than in the matrix, thus generating an electrochemical proton gradient.

What is the role of the hydrogen gradient in ATP synthesis?

The hydrogen ions then flow back across the membrane (down the electrochemical gradient) through a specialized protein complex termed the ATP synthase, which captures the free energy of the hydrogen gradient to drive the synthesis of ATP from ADP and inorganic phosphate.

Why is the proton gradient important in the respiratory system?

The proton gradient is critical to the chemiosmotic coupling of electron transport and ATP synthesis. As electrons are moved along the respiratory chain, protons are pumped across the inner membrane, from the matrix into the intermembrane space; this results in an electrochemical proton gradient.

What is the function of the outer membrane of the mitochondria?

The outer membrane is very permeable, and it allows many molecules to flow in and out of the mitochondrion. The inner membrane, which is much less permeable, is the site of oxidative phosphorylation. The proteins of the ETC and the ATP synthase are embedded in the inner membrane, which has numerous distinct infoldings (termed cristae).