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What goes into the electron transport chain?
In the electron transport chain, electrons are transferred through a series of protein complexes embedded in the inner mitochondrial membrane. These protein complexes, labeled I to IV, use the energy from electron transport to pump protons across the membrane, creating an electrochemical gradient. The energy from this gradient is then used by ATP synthase to generate ATP.
Why is cyanide lethal to the electron transport chain?
Its electronegativity allows it to bind to cytochrome c (an electron-carrying protein) which blocks this cytochrome from receiving other electrons that pass down the electron transport chain to produce energy in the form of ATP. This is much like a bucket brigade: people in a line passing down a bucket to the place of the fire much like that of an assembly line. If one person in the middle of the line doesn't pass on his bucket, the line backs up. In this sense electrons back up and no further ATP is being produced after a while. Thus cyanide is lethal because it prevents production of ATP and a person dies because it is deprived of chemical energy to perform the many numerous processes that sustain life.
What is the role of the electrons in the ETC?
Active transport is moving substance against its gradient so it requires an input of energy to achieve this. One example is Na K ATPase. This is a secondary active transporter that pumps 3x Na out of the cell for 2x K into the cell. There are so much more Na outside the cell and already a lot of K inside the cell so to push the molecules there is an expenditure of ATP to do this.
What major advantage does a transmission electron microscope have over a compound light microscope?
The Compund light microscope allows people to view living cells. With the electron light microscope peole can only view dead cells but with very high detail. The electron microscope is also much more expensive than a compound ligh microscope. The compound light microscope is also much easier to transport from place to place, as the electron microscope is not.
If an electron weighed as much as a dime how much would a proton weigh?
Electron = 9.109 X 10 - 31 kg Proton = 1.67 X 10 - 27 kg so, 1.67 X 10 - 27/9.109 X 10 -31 = 1833 times as much does a proton mass over an electron ----------------------------------------------------------------------------
Why is the increased number of mitochondria beneficial for aerobic exercise?
An increase in mitochondria means that the cell has more cellular machinery to perform the Krebs cycle and the electron transport chain. Because so much ATP is produced in the electron transport chain, such an increase in mitochondria can provide the cell with more energy to sustain physical activity, provided oxygen is available.
How much energy is produced in etc?
The estimated energy produced in the electron transport chain (ETC) from one glucose molecule is around 30-32 ATP molecules. This ATP production occurs through a series of redox reactions driven by electron transport and proton pumping across the inner mitochondrial membrane.
What goes into the electron transport chain?
In the electron transport chain, electrons are transferred through a series of protein complexes embedded in the inner mitochondrial membrane. These protein complexes, labeled I to IV, use the energy from electron transport to pump protons across the membrane, creating an electrochemical gradient. The energy from this gradient is then used by ATP synthase to generate ATP.
What is the difference between substrate level phosphorylation and chemiosmosis?
substrate level phosphorylation does not involve (electron transport chain), oxidative phosphorylation does. Substrate level phosphorylation involves the direct transfer of phosphate from a phosphate bearing molecule to ADP, thus yielding ATP. In cellular respiration, oxidative phosphorylation requires a protein, ATP synthase, to channel energy provided by a concentration of H ions; this energy results in the combining of phosphate with ADP.
What happens to chlorophyll's electrons when the sun's energy is absorbed?
They move into what is called an electron transport chain. The answer is book size. This is a very simple answer and I don't know much more and forgot the rest, hopefully somebody will expand. Sorry.
What type of cellular respiration occurs with oxygen?
Aerobic respiration is the type of cellular respiration that requires oxygen. This process involves the release of glucose for energy.Aerobic respiration requires oxygen to be present because it is the final electron acceptor at the end of the electron transport chain. If it is not present, then the electron can not go through the chain and fermentation will cycle instead. Fermentation is much more inefficient in producing ATP (a differenence of 32 ATP).
Why is cyanide lethal to the electron transport chain?
Its electronegativity allows it to bind to cytochrome c (an electron-carrying protein) which blocks this cytochrome from receiving other electrons that pass down the electron transport chain to produce energy in the form of ATP. This is much like a bucket brigade: people in a line passing down a bucket to the place of the fire much like that of an assembly line. If one person in the middle of the line doesn't pass on his bucket, the line backs up. In this sense electrons back up and no further ATP is being produced after a while. Thus cyanide is lethal because it prevents production of ATP and a person dies because it is deprived of chemical energy to perform the many numerous processes that sustain life.
How much ATP does it cost to run cellular respiration?
For cellular respiration two ATP must be put into glycolysis which starts the whole process of cellular respiration Steps: 1. Glycolysis 2. Transition Stage 3. Kreb cycle 4. Electron Transport Chain (ETC)
What is the difference between a Galleon and Frigate?
A galleon is made for transporting things and has cannons, but it is made to transport items. But, a frigate is a warship. It doesn't transport as much and is made for naval warfare.
How do carbohydrates help make ATP?
Carbohydrates are metabolized and used to produce ATP molecules.
What is the purpose of oxygen in the body?
A. It picks up electrons and hydrogen ions from the electron transport chain to form water B. It aids in the breakdown of glucose C. It participates in the chemiosmotic gradient in the electron transport chain D. It is part of coenzyme A
What oxygen needed by most organisms in the process?
Most organisms require oxygen for cellular respiration, the process by which cells break down glucose to produce energy in the form of ATP. Oxygen is the final electron acceptor in the electron transport chain, allowing for the efficient production of ATP. Without oxygen, organisms would not be able to generate as much energy from their food sources.
