Where does electron transport occur in prokaryotes?

a. The electron transport chain of aerobically respiring prokaryotic and eukaryotic cells is found across the cytoplasmic membrane.

Where does electron transport occur in?

inner membrane
The electron transport chain activity takes place in the inner membrane and the space between the inner and outer membrane, called the intermembrane space.

Where is the electron transport chain located in a prokaryotic cell quizlet?

*In prokaryotic cells, the electron transport chain resides in the cytoplasmic membrane. Protons are pumped from inside the cell to the outside.

Where does electron transport occur in eukaryotic cells?

In eukaryotic cells, the more evolutionarily advanced and complex cells of animals, plants and fungi, electron transport takes place in cellular organelles known as mitochondria, where these tiny eukaryotic power factories break down food to make ATP.

How do prokaryotes carry out electron transport?

The ETS is embedded in the cytoplasmic membrane of prokaryotes and the inner mitochondrial membrane of eukaryotes. As electrons are passed from NADH and FADH2 through an ETS, the electron loses energy. This energy is stored through the pumping of H+ across the membrane, generating a proton motive force.

What occurs in prokaryotes but not eukaryotes?

The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. The nucleus is only one of many membrane-bound organelles in eukaryotes. Prokaryotes, on the other hand, have no membrane-bound organelles.

How many ATPS does the electron transport system ETS produce?

Electron transport chain This stage produces most of the energy ( 34 ATP molecules, compared to only 2 ATP for glycolysis and 2 ATP for Krebs cycle). The electron transport chain takes place in the mitochondria. This stage converts the NADH into ATP.

What are the components of electron transport chain?

The electron transport chain is also called the Cytochrome oxidase system or as the Respiratory chain. The components of the chain include FMN, Fe–S centers, coenzyme Q, and a series of cytochromes (b, c1, c, and aa3).

What is the final electron acceptor of the electron transport chain?

oxygen
Explanation: In cellular respiration, oxygen is the final electron acceptor. Oxygen accepts the electrons after they have passed through the electron transport chain and ATPase, the enzyme responsible for creating high-energy ATP molecules.

Which is true of competitive inhibition?

Which is true of competitive inhibition? It involves an allosteric enzyme. Substrate and inhibitor both bind to the active site. Substrate and inhibitor both bind to the active site AND PABA (para-aminobenzoic acid) is a competitive inhibitor.

What is the importance of electron transport system?

The ETC is the most important stage of cellular respiration from an energy point of view because it produces the most ATP. In a series of redox reactions, energy is liberated and used to attach a third phosphate group to adenosine diphosphate to create ATP with three phosphate groups.

What is the advantage of an electron transport chain?

Electron transport chains are an advantage to living things because they allow the cell to extract energy from harvesting electrons.

Where does the electron transport chain occur in prokaryotic cells?

Compare where the electron transport chain occurs in prokaryotic cells and in eukaryotic cells. State what is meant by proton motive force. State the function of ATP synthases in chemiosmosis. State the final electron acceptor and the end product formed at the end of aerobic respiration.

What kind of electron transport chain does bacteria have?

Some bacterial electron transport chains resemble the mitochondrial electron transport chain. Paracoccus denitrificans is a gram-negative, facultative anaerobic soil bacterium. It is a model prokaryote for studies of respiration.

How are protons transported in an electron transport system?

In an electron transport system, energy from electron transfer during oxidation-reduction reactions enables certain carriers to transport protons (H+) across a membrane. As the H+ concentration increases on one side of the membrane, an electrochemical gradient called proton motive force develops.

Which is part of the electron transport chain in aerobic respiration?

Movie illustrating the electron transport system in the mitochondria of eukaryotic cells. Aerobic respiration involves four stages: glycolysis, a transition reaction that forms acetyl coenzyme A, the citric acid (Krebs) cycle, and an electron transport chain and chemiosmosis.