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mitochondria inner membrane
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∙ 13y ago
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∙ 9y agoThe energy released in the mitochondrial electron transport chain is used to transport protons into the inter-membrane space of mitochondria.
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∙ 12y agoThe intermembrane space
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∙ 13y agomitochondrial intermembrane space
Wiki User
∙ 12y agomitochondrial intermembrane space
Wiki User
∙ 13y agoto inter-membranous space.
Wiki User
∙ 13y agomitochondrial intermembrane space
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Why does fadh2 produce fewer ATP molecules than nadh?
NADH produces 3 ATPs because it donates the proton at a "higher" location in the electron transport chain than does FADH2, which is why FADH2 produce only 2 ATPs. NADH and FADH2 donates electrons and protons into the electron transport chain.
The primary role of oxygen in cellular respiration is to?
EntryWhen a person inhales, oxygen contained in air enters the body through the nose and the mouth.Path to the LungsOxygen-rich air travels through the upper and lower respiratory tracts into the lungs.AlveoliIn the tiniest branches of the lungs, the alveoli remove carbon dioxide and prepare oxygen for transport into the circulatory system.DiffusionOxygen transfers through diffusion from the alveoli to the capillaries. Diffusion is the process of particles of liquids, gases or solids moving from an area of higher concentration to an area of lower concentration.CapillariesThe capillaries connect to the larger blood vessels, which transport oxygen-rich blood to the heart.HeartThe heart pumps oxygen-rich blood to the rest of the body through the circulatory system. All of the cells in the human body use oxygen from the blood to break down glucose for energy.
3 examples of active transport?
Primary Active Transport Secondary Active Transport Exocytosis/Endocytosis
How is ATP made in the light reactions?
In the light reaction, when electrons are transferred from photosystem 1 to photosystem 2, it goes through an electron transport chain. This ETC pumps protons into the thykaloid. Those protons diffuse out of the thykaloid through ATP synthase which energizes a phosphate group to bond to ADP. This creates ATP.
Atp is formed when what enters the thylakoid lumen?
Within the thyakoid membrane, electrons from water are "excited" by photons of light energy in Photosystem II. The excited electrons "fall" from Photosystem II, pass through the electron transport chain (ETC) and flow into Photosystem I. As the electrons travel down the ETC, one molecole of hydrogen is pumped across the membrane from the stroma (fluid space inside the chloroplast) into the thylakoid where a higher gradient of H+. The ions pass onto the protien, ATP synthase which takes one H+ ion and pumps it through the membrane acting like a motor generating one molecule of ATP. The ATP is now located in the stroma and will be used shortly in the Calvin Cycle.
What are cytochrome carriers?
they are part of the electron transport chain and they are involved with the pumps that create the concentration gradient of H+
Give an example of active transport?
Hydrogen (H+) pumps.
When water molecules are split in plants where do the electrons and hydrogens ions go?
Electrons are used to replenish the electrons lost by the photosystems (electrons in photosystems are lost to the electron transport chain and eventually end up in NADPH). The protons are used by the proton pumps in the electron transport chain to create the proton gradient, which drives ATP synthesis.
What is the final electron receptor in cellular respiration?
oxygen is used to pull electrons down to the Electron Transport Chain which pumps H+ to create H+ gradient :)
What roles do electrons and hydrogen ions play in light-dependent reactions of photosynthesis?
Electrons excited out of the reaction centre in the photosystems are carried along a chain. The electron transport chain pumps protons, just like the respiratory complexes, and the electrons are eventually dumped onto NADP to form NADPH. Protons flow back through ATP synthase, generating ATP.
What is the primary objective of the electron transport chain?
To provide the motive force that pumps protons into the outer lumen of the mitochondria. Where the protons will fall down their concentration gradient through the ATP synthase and generate ATP.
Analogies for electron transport chain?
Converting one form of energy or potential energy into another. I use taking foreign currency (NADH and FADH2) and trying to buy a coffee in the US with it. It is still money but no matter how hard you try Starbucks (mussels) will not except it you must first convert it into US currency before you can use it at Starbucks. This conversion is the Electron Transport Chain it is taking and exchanging NADH for ATP or H+ Depending on how detailed you get. (Pesos for Dollars).
What does the electric transport chain of aerobic respiration do?
The electron transport chain of aerobic respiration is the final stag and this will pump protons in the cell. It will also transfer electrons from electron donors to electron acceptors through redox reactions.
Why does fadh2 produce fewer ATP molecules than nadh?
NADH produces 3 ATPs because it donates the proton at a "higher" location in the electron transport chain than does FADH2, which is why FADH2 produce only 2 ATPs. NADH and FADH2 donates electrons and protons into the electron transport chain.
What pumps are in active transport?
ATPase pumps got that......
Oxidative phosphorylation describes how the electron-transport system produces ATP using active proton pumps located within the?
they are located in the Inner mitochondrial membrane
How are NADH and FADH2 related?
Think of it like this: Every time the electron is handed to another cytochrome, it pumps H+ across a membrane to create a gradient. NADH sticks the electron in higher up the chain than FADH2 does so the NADH electron pumps more protons since it is passed between more cytochromes than the FADH2 electrons. Since every proton pumped across is an ADP-->ATP reaction, the more protons an electron can pump, the more energy you get from that electron. FADH2 is around because it has roles in other areas like synthesis, so by being a little more multifunctional than NADH it sacrifices some in the electron transport role. -Jelanen
