What happens when ATP synthase operates “in reverse” and pumps H+ across a membrane against its...
What happens when ATP synthase operates “in reverse” and pumps
H+ across a membrane against its electrochemical proton
gradient?
Choose one:
ATP is hydrolyzed to form ADP and Pi.
ATP is co-transported across the membrane.
Nutrients are transported in the opposite direction across the membrane.
Na+ is transported in the opposite direction across the membrane.
ATP is synthesized from ADP and Pi.
Homework Answers
When ATP synthase operates “in reverse”, ATP is hydrolyzed to form ADP and Pi that energy is utilized to pump H+ across a membrane against its electrochemical proton gradient.
Add Answer to:
What happens when ATP synthase operates “in reverse” and pumps
H+ across a membrane against its...
Investigators introduce two proteins into the membrane of artificial lipid vesicles: (1) an ATP synthase isolated...
Investigators introduce two proteins into the membrane of artificial lipid vesicles: (1) an ATP synthase isolated from the mitochondria of cow heart muscle, and (2) a light-activated proton pump purified from the prokaryote Halobacterium halobium. The proteins are oriented as shown in the diagram. When ADP and P; are added to the external medium and the vesicle is exposed to light, would this system produce ATP? H LIGHT protein pump ATP synthase Choose one: O No, because no electron-transport chain...
8. The movement of protons out of the mitochondrial matrix establishes an electrochemical H gradient across...
8. The movement of protons out of the mitochondrial matrix establishes an electrochemical H gradient across the inner mitochondrial membrane. The electrochemical potential of this gradient is harnessed to synthesize ATP. This is known as the (A) Hydrophobic effect IqChemiosmotic theory (B) Acid catalysis (0) Michaelis-Menten mechanism _9. Which of the following statements about mitochondria and their lon and metabolite transporters is FALSE? (A) Controlled impermeability of the inner mitochondrial membrane to most ions and metabolites allows for the generation...
Lo 10: Electrochemical Gradient The difference in voltage across the membrane is called the __________________________________. The...
Lo 10: Electrochemical Gradient The difference in voltage across the membrane is called the __________________________________. The inside of a normal cell is ___________________ (+/-); while the outside is ___________(+/-). The resting membrane potential of a neuron is ___________mV. Diagram the relative ratios of Ca++, Na+ and K+ in a cell under resting conditions. Draw an arrow for each of the molecules indicating which direction would be passive transport (into or out of the cell). For each of the following sentences, fill in...
why was it necessary to isolate mitochondria to study and also use engineered vesicles that either...
why was it necessary to
isolate mitochondria to study and also use engineered vesicles that
either did or did not contain atp synthetase?
by the first ATP s r aasing the enzyme to function as an ATPase and result in ATP ATP synthase would likely drive the ATP synh reverse direction, s Original Paper The oniginal experiments on pli and ATP formation were donc on chloroplasts The chemiosmotic generation of ATP is simila to mitochondria, but occurs across tihe thylašoid...
During the aerobic metabolism of glucose, glucose is ____________. Reduced to form water Oxidized to form...
During the aerobic metabolism of glucose, glucose is ____________. Reduced to form water Oxidized to form water Reduced to form CO2 Oxidized to form CO2 Which of the following describes the equation: FAD + XH2 à FADH2 + X. FAD is reduced to FADH2 It is a coupled reduction – oxidation reaction XH2 is oxidized to X All of the above Which of the following is FALSE about glycolysis? The initial steps of glycolysis requires energy derived from the splitting...
Discard the answers I chose Match the following scenarios with the most specific type of transport...
Discard the answers I chose
Match the following scenarios with the most specific type of transport used. Some choices may be used more than once. A A white blood cell enguits a bacterial cell A A paramecium swims close to some debris, wraps its membrane around the debris, and pulsit inside, creating a food Vacuole D. An amoeba wraps its cell membrane around a region of dissolved nutrients in water and pulls it inward, making a small vacuole A Phagocytosis...
1. According to the paper, what does lactate dehydrogenase (LDH) do and what does it allow...
1. According to the paper, what does lactate dehydrogenase
(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
sources of ATP production at 50% versus 90% AND explain whether you
believe this depiction of ATP production applies to a Type IIX
myofiber in a human....
Investigators introduce two proteins into the membrane of artificial lipid vesicles: (1) an ATP synthase isolated from the mitochondria of cow heart muscle, and (2) a light-activated proton pump purified from the prokaryote Halobacterium halobium. The proteins are oriented as shown in the diagram. When ADP and P; are added to the external medium and the vesicle is exposed to light, would this system produce ATP? H LIGHT protein pump ATP synthase Choose one: O No, because no electron-transport chain...
8. The movement of protons out of the mitochondrial matrix establishes an electrochemical H gradient across the inner mitochondrial membrane. The electrochemical potential of this gradient is harnessed to synthesize ATP. This is known as the (A) Hydrophobic effect IqChemiosmotic theory (B) Acid catalysis (0) Michaelis-Menten mechanism _9. Which of the following statements about mitochondria and their lon and metabolite transporters is FALSE? (A) Controlled impermeability of the inner mitochondrial membrane to most ions and metabolites allows for the generation...
why was it necessary to
isolate mitochondria to study and also use engineered vesicles that
either did or did not contain atp synthetase?
by the first ATP s r aasing the enzyme to function as an ATPase and result in ATP ATP synthase would likely drive the ATP synh reverse direction, s Original Paper The oniginal experiments on pli and ATP formation were donc on chloroplasts The chemiosmotic generation of ATP is simila to mitochondria, but occurs across tihe thylašoid...
Discard the answers I chose
Match the following scenarios with the most specific type of transport used. Some choices may be used more than once. A A white blood cell enguits a bacterial cell A A paramecium swims close to some debris, wraps its membrane around the debris, and pulsit inside, creating a food Vacuole D. An amoeba wraps its cell membrane around a region of dissolved nutrients in water and pulls it inward, making a small vacuole A Phagocytosis...
1. According to the paper, what does lactate dehydrogenase
(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
sources of ATP production at 50% versus 90% AND explain whether you
believe this depiction of ATP production applies to a Type IIX
myofiber in a human....
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