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Why do hyrdogen ions flow back across the mitocondrian membrane?
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What kinda ions are positively charged and can cross back and forth across the neuron cell membrane?
There are two ions that can cross the cell membrane. The positively charged sodium and potassium ions can cross back and forth across the neuron cell membrane.
What does the electron transport cycle do?
An electron transport chain couples a chemical reaction between an electron donor (such as NADH) and an electron acceptor (such as O2) to the transfer of H+ ions across a membrane, through a set of mediating biochemical reactions. These H+ ions are used to produce adenosine triphosphate (ATP), the main energy intermediate in living organisms, as they move back across the membrane. Electron transport chains are used for extracting energy from sunlight (photosynthesis) and from redox reactions such as the oxidation of sugars (respiration).
How can you get a mother who weighs 100 pounds a father who weighs 100 pounds a son who weighs 50 pounds and a daughter who weighs who weighs 50 pounds across a river in a boat that can only hold 1?
1. son and daughter across 2. son back 3. father across 4. daughter back 5. son and daughter across 6. daughter back 7. mother across 8. son back 9. son and daughter across
How does the sodium and potassium pump act to maintain the resting membrane potential?
Primary active transport is the process in which ions are moved across cell membranes against the electrochemical gradient using energy supplied directly be ATP. The action of the sodium-potassium pump is an important example of primary active transport.Secondary active transport is indirectly driven by primary transport. In the sodium-potassium pump, by pumping against the gradient, energy is stored in the ion gradient. Then, just as water pumped uphill can do the work as it flows back down, (think water wheel or turbine), a substance pumped across the membrane can do work as it leaks back, propelled downhill along the concentration gradient.
What is connected to the nasopharynx by the auditory or eustachian tube?
The ear -- specifically, the back of the eardrum or tympanic membrane
When molecules are moving back and forth across the membrane will they ever stop moving?
Yes, in an isotonic solution the movement of molecules across the membrane will stop.
What ions are positively charged and can cross back and forth across neuron and cell membrane?
There are two ions that can cross the cell membrane. The positively charged sodium and potassium ions can cross back and forth across the neuron cell membrane.
What kinda ions are positively charged and can cross back and forth across the neuron cell membrane?
There are two ions that can cross the cell membrane. The positively charged sodium and potassium ions can cross back and forth across the neuron cell membrane.
Ions cannot cross back and forth across the neuron cell membrane?
Water diffuses across the plasma membrane, and this can affect cell size and .... proceeds, the different type cells of the embryo develop their ... or ion so that it can cross the plasma .... molecules cannot cross the membrane because they are un- able to ... plasma membrane and the back and forth arrows indicate that these.
What is a condition of osmosis where water moves evenly back and forth across a membrane?
Most likely an Equilibrium point
When hydrogen ions are pumped from the mitochondrial matrix across the inner membrane and into the intermembrane space the result is?
Hydrogen ions are pumped through the membrane in the final stage of ATP generation in the electron transport chain. The ions pumped through the membrane create a gradient and cause the hydrogen to "want" to pass back through the membrane. They do so through the protein channels in the membrane and attaches a phosphate to adenosine diphosphate to make adenosine triphosphate.
What is protein motive force?
This is a force generated by complex H+ flow back into the matrix (across the inner membrane) via the proton translator domain.
What hydrogen ion pumps do?
also referred to as "Chemiosmotic Synthesis of ATP", hydrogen ions are removed from one side of the membrane to another. (inside to out), generating a proton gradient across the membrane. So we have a high concn of H+ ions outside the cell membrane. This causes the H+ ions in urgent need to get back inside with diffusion, thus protons move across membrane through special channels. Their passage drives the synthesis of ATP as well. btw this is also Active Transport. (ATP from cell is required).
Which of the following best describes the direct mechanism of ATP production during photosynthesis?
Protons are pumped across the thylakoid membrane, where they flow back through ATP synthase which synthesizes ATP.
What fills the space between cell wall and membrane after plasmolysis?
The cell membrane is a selectively permeable membrane that will only let water and solutes across it. The cell membrane freely allows pretty much everything to pass across it, meaning that things unable to pass the membrane back up and push it away from the cell wall. Therefore the gap is filled with the SUGAR SOLUTION that is surrounding the cell.
How do you get every one across burtons bridge in secret builders?
across - 3 and 1 back - 1 across - 8 and 12 back - 3 across - 6 and 1 back - 1 across - 1 and 3 you won.....
What cell does chemiosmosis take place in?
Chemiosmosis occurs with those protons diffuse back, out of the intermembrane space, across the inner mitochondrial membrane, back into the matrix: as they do so, they pass through the membrane spannning ATP synthases which make ATP from ADP + Pi.
