How many carbons from 20 original glucose molecules enter the Krebs cycle in the presence of oxygen?   Question options:   72   78   80   120

Question 10 Select all the central metabolic pathways that yield precursor metabolites necessary for life. (select. Pentose phosphate pathway ONitrogen dissimilation A Entner-Doudoroff pathway O Electron transport system Glycolysis Question 11 The binding of a positive allosteric regulator molecule will:

What is the total number of ATP molecules that can be produced from the complete oxidation of one glucose molecule? Express your answer numerically as an integer. ► View Available Hint(s)

The term "dark reactions" was once used to describe the Calvin cycle. Explain why this term was used and suggest why this term is no longer used. Paragraph I U + v ...

Question 4: What serves as the final electron acceptor in the transport chain? Answer: Question 5: The 4-carbon molecule that is recycled during the citric acid cycle is: (pick one)     oxalacetate   ADP   acetyl CoA   RuBP Question 6. The enzyme used to synthesize ATP during chemiosmosis is known as Answer: Question 7:  Most of the carbon dioxide produced by the catabolism of glucose is released during (pick one)     the citric acid cycle   the electron transport chain   chemiosmosis   glycolysis Question 8: The reduced form of NAD is: Answer:      ***I do not need a feel explanation of the questions, just pick one if its multiple choice and fill in the black for the others please****

Question 30 Which of the following accepts electrons from NADH? O ubiquinone O Fe-S complex O cytochrome b-c1 complex O NADH dehydrogenase complex O cytochrome oxidase complex

Do question 13

Question 1: The 4 kinase steps in glycolysis are catalyzed by hexokinase, phosphofructokinase, phosphoglycerate kinase, and pyruvate kinase. Write each of these four reactions, including all participants. i. ii. iii. iv.

Question 1: The standard reduction potential for the the cytochrome c Fe3+/Fe2+ redox couple and for the dioxygen/water redox couple. Part a: Use these values, and the relevant equation, to compute the standard free energy change for the transfer of 4 electrons from cytochrome c to dioxygen. Part b: Next, compute the free energy needed to pump four protons across the mitochondrial membrane, using the relevant equation and values of -.14V for Δψ and 1.4 for ΔpH. Part c: If energy conservation by cytochrome c oxidase involved only the four pumped protons (and standard conditions applied), what would be the efficiency of energy conservation at this step? (what is the ratio [energy conserved in the gradient] / [redox energy used] ?)