Can someone help me with these? These are the ones i missed/got partial credit.
ID: 161921 • Letter: C
Question
Can someone help me with these? These are the ones i missed/got partial credit. For Q2 i'm not sure what part I had right. I'm pretty sure it was the intermembrane space. For Q3, it is multiple answers most likely, and I'm pretty sure I picked an answer that was wrong. Idk which :/ if anyone can help i'd appreciate it. And Q3 is the only one that can have multiple answers. Thank!!
Incorrect Question 1 0 1 pts ATP synthetase is powered by a hydrogen gradient powered by the rotons transfer of Pl Answer 1 hydrogen Answer 2: protons 0.25 1pts Partial Question 2 In normal conditions: High concentration of protons is present in the intermembrane Low concentration of protons is present in the Inside ETCallows protons to be pumped from the matrix side into the ntermembrane Answer 1: ntermembrane Answer 2: nside Answer 3: matrix side Answer 4: intermembrane space Partial Question 3 0.33 1 pts Why do we need electron transport chain? It frees NAD and FAD, to be reused in the TCA and the electron transport chaln. Technically we don't need the electron transport chain; glycolysis and TCA creates all the ATP that we need, Electron transport chain's purpose is to squeeze every last bit of ATP we can synthesize with a nor net gain Because a great deal of energy is stored in NADH and FADH2, which are formed in glycolysis and citric acid cycle. Cytochrome c ls a cofactor of various enzymes for both glycolysis and citric acid cycle (e.g., phosphoglycerate kinase and isocitrate dehydrogenase) The proton gradient created through the electron transportchain can be used to turn the ATP synthase, which in tum can synthesize ATP.Explanation / Answer
Hydrogen ions (H+), moving down an electrochemical gradient, such as from the thylakoid lumen through the thylakoid membrane and into the chloroplast stroma (of plants) or from the inter-membrane space and into the matrix in mitochondria helps in production of ATP.
Q1) Answer 1: electrochemical gradient
Answer 2: hydrogen ions
Q2) Answer 1: matrix
Answer 2: intermembrane space
Answer 3: matrix
Answer 4: intermembrane space
Q3) An electron transport chain (ETC) is a series of compounds that transfer electrons from electron donors to electron acceptors via redox reactions, and couples this electron transfer with the transfer of protons (H+ions) across a membrane. This creates an electrochemical proton gradient that drives the synthesis of adenosine triphosphate (ATP). In mitochondria, it is the conversion of oxygen to water, NADH to NAD+ and succinate to fumarate that are required to generate the proton gradient.
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