Quiz #2 1. Chemiosmosis is a part of oxidative phosphorylation, the final step i
ID: 303190 • Letter: Q
Question
Quiz #2 1. Chemiosmosis is a part of oxidative phosphorylation, the final step in cellular respiration Which of the following is true regarding chemiosmosis? A The energy from a proton gradient is used to make ATP B Chemiosmosis regenerates electron carriers like NADH and FAHD2. C ATP synthesis creates a proton gradient that causes electron flow through an electron D A temperature gradient drives ATP synthesis. transport chain (ETC). In the absence of oxygen, some organisms produce ethanol (alcohol) and ATP from pyruvate and NADH 2. What is the name of this anaerobic pathway? A Lactic acid fermentation B Glycolysis C Krebs cycle D Alcohol fermentation 3. Identify each of the following molecules as reactants or products of the Krebs cycle. Reactant Product Acetyl CoA Carbon dioxide NAD NADH FADH2 FADExplanation / Answer
1. option A is correct i.e. the energy associated with proton gradient is used here in chemiosmosis to make ATP from APD and Pi .
2. the Anaerobis pathway is the alcohol fermentation tht leads to formation of the ethanol from pyruvate.
3. the reactants are: acetyl Co-A , FAD and NAD+
the products are: NADH, FADH and CO2 .
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