In summary, during cellular respiration, most electrons travel the following «downhill» route: glucose → NADH → electron transport chain → oxygen.
Which is the correct sequence by which electrons travel during aerobic cellular respiration?
So, the correct answer is ‘ Glycolysis, Krebs cycle, Electron transport chain ‘.
What is the correct order of the steps in aerobic respiration?
Aerobic respiration involves four stages:
Why do electrons move downhill in the electron transport chain?
Overview: oxidative phosphorylation The energetically ‘downhill’ movement of electrons through the chain causes pumping of protons into the intermembrane space by the first, third, and fourth complexes. Finally, the electrons are passed to oxygen, which accepts them along with protons to form water.
What are the 4 stages of aerobic respiration?
Aerobic respiration is a series of enzyme-controlled reactions that release the energy stored up in carbohydrates and lipids during photosynthesis and make it available to living organisms. There are four stages: glycolysis, the link reaction, the Krebs cycle and oxidative phosphorylation.
Which is the correct sequence of events?
The Electron Transport Chain Explained (Aerobic Respiration)
One way to identify the sequence of events is to keep your eye out for time order words. These include words like ‘first,’ ‘then,’ ‘following that,’ and more. Especially if it’s a short story, the author might use these signal words to indicate the progression of a story from beginning to end.
What are the 3 steps of aerobic respiration quizlet?
Aerobic (‘oxygen-using’) respiration occurs in three stages: glycolysis, the Krebs cycle, and electron transport.
Why respiration is downhill process?
Because the NAD+has a higher affinity for hydrogens than the carbon in a carbohydrate , this group of reactions is ‘downhill’.
In what order do the electrons move through the electron transport chain?
A Recipe for Energy — Plants need water to make NADPH. This water is broken apart to release electrons (negatively charged subatomic particles). When water is broken it also creates oxygen, a gas that we all breathe. The electrons must travel through special proteins stuck in the thylakoid membrane.
How do electrons move through the electron transport chain?
The electron transport chain is comprised of a series of enzymatic reactions within the inner membrane of the mitochondria, which are cell organelles that release and store energy for all physiological needs. As electrons are passed through the chain by a series of oxidation-reduction reactions, energy is released, creating a gradient of hydrogen ions, or protons, across the membrane. Schematic representation of the electron transfer chain via chemiosmotic reactions. Image Credit: Ellepigrafica / Shutterstock The reactions of the electron transport chain are carried out by a series of membrane proteins and organic molecules. They are arranged in four complexes. In eukaryotes, the electron transport chain is located in the inner mitochondrial membrane.
The proton gradient provides energy to make ATP, which is used in oxidative phosphorylation. In prokaryotes, it is located within the plasma membrane. Electrons move through the electron transport chain from a higher to lower energy state.
Energy release moves protons through channels in the membrane proteins, moving them into the inner membrane space. This leads to a buildup of positively charged protons, which creates an electrical potential across the membrane. The reactions of the electron transport chain involve several large membrane protein complexes within the inner mitochondrial membrane.
What is the final step of aerobic respiration?
Oxidative phosphorylation is the final stage of aerobic cellular respiration. There are two substages of oxidative phosphorylation, Electron transport chain and Chemiosmosis. In these stages, energy from NADH and FADH2, which result from the previous stages of cellular respiration, is used to create ATP.
Which of the following is the correct sequence of stages in aerobic cellular respiration quizlet?
What is the correct sequence of steps in cellular respiration, starting with glucose? Glycolysis, pyruvate processing, citric acid cycle, electron transport, oxidative phosphorylation.
What is the correct sequence of steps as energy is extracted from glucose during cellular respiration?
Cellular respiration is a metabolic pathway that breaks down glucose and produces ATP. The stages of cellular respiration include glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative phosphorylation.
Which of the following sequences correctly represents the flow of electrons during photosynthesis?
So, the correct option is, ‘ H20 → NADPH → Calvin Cycle ‘. Was this answer helpful?.
What event takes place in the electron transport chain?
The events of the electron transport chain involve NADH and FADH, which act as electron transporters as they flow through the inner membrane space. In complex I, electrons are passed from NADH to the electron transport chain, where they flow through the remaining complexes.