Exam 5: Aerobic Respiration and the Mitochondrion

A plant seedling converts stored fatty acids into carbohydrates. Which metabolic pathway(s)will be used to generate energy from the lipid-derived 2 carbon intermediates? (Select all correct choices)

To what is the 2-carbon fragment of acetyl CoA added to make citric acid at the start of the Krebs cycle?

From which parent are mitochondria inherited?

Why would the individual described in Rudolf Luft's 1962 case study of mitochondrial dysfunction possibly be exercise intolerant?

Which of the following is not found in a reducing atmosphere?

What molecule is responsible for conveying 2 carbons from pyruvate to the Krebs cycle?

From what does the mitochondrial RNA polymerase appear to have evolved?

Which of the statements below served as evidence that rotational catalysis occurs in ATP synthase?

How many carbons from one original glucose molecule enters the Krebs cycle in a cell in which respiration does not take place?

Peroxisomal enzymes possess all of the characteristics listed EXCEPT:

An unusual type of phospholipid called ___________ is found in the myelin sheath that insulates brain axons; abnormalities in the synthesis of this phospholipid can lead to severe neurological dysfunction.

Which enzyme of the Krebs (TCA)cycle is different from the others with respect to its location and where is it located?

The standard redox potential of the NADP⁺/NADPH half reaction = -0.324 V. The standard redox potential of the fumarate/succinate half reaction = +0.031 V. What is the voltage change for coupling these redox reactions and in which direction will electrons move?

Why must the process by which cytochrome oxidase works be efficient?

When fission of mitochondria becomes more frequent than fusion, the mitochondria tend to become __________. (Select all correct responses)

Which component involved in the Krebs (TCA)cycle is bound to the inner mitochondrial membrane?

How do mitochondria generate and store the energy used to produce most of the ATP made during aerobic respiration?

Which organelle below is NOT found in both plants and animals?

Which of the following regulate intracellular levels of Ca²⁺ ions? (Select all correct choices)

You are trying to figure out an electron transport pathway including the following electron transport molecules: B, K, T, Q and X. You do so by employing inhibitors for various steps in the process. When you do, you get the following results: Inhibitor Electron Transport Molecules Trapped in Reduced Form Ticin Q & K Digitin K Estin T, K, Q & B Lucin Q, K & T What is the order of the molecules (the pathway)in the electron-transport chain suggested by the above data from the most reduced to the least reduced molecule?