Figure 7.11 Dinitrophenol (DNP) is an "uncoupler" that makes the inner mitochondrial membrane

Q: In nature, there are some organisms that are unable to perform aerobic respiration in the presence…

A: All living organisms require energy derived from the metabolism of complex biomolecules in food for…

Q: 2.1 The Na"/K pump is constantly working to push sodium out and potassium into the cell. What role…

A:

Q: The amino acid in Hemoglobin that is most  found to be most sensitive to pH changes, and hence…

A: Oxygen binding capacity (OBC) is a measure of the ability of a substance or material to bind or hold…

Q: (b) The hemoglobin subunits expressed in a growing fetus and adult mother are different from each…

A: Hemoglobin is a globular protein, ie it is roughly spherical. It is a tetramer of two types of…

Q: In some metalloproteins such as haemoglobin and some metalloenzymes, the Fe2+ metal is not bound to…

A: Metalloproteins are proteins that contain a specific type of metal ion or metal-containing cofactor…

Q: In cellular respiration, carbon dioxide is formed from the oxidation of which of the following?

A: Cellular respiration is a set of metabolic processes that occur within a cell, in which biochemical…

Q: Two mobile electron transfer carriers are present in the inner mitochondrial membrane.  Name these…

A: Electron transport chain is a sequence of biochemical reactions in which electrons and hydrogen…

Q: A new weight loss drug, Super Fat Melter, is introduced on the market but then quickly recalled…

A: The electron transport chain takes place in the inner membrane of mitochondria.

Q: ich of the following molecules is NOT amphipathic? triacylglycerides fatty acids sphingolipids o…

A: Hydrophilicity is the character of the molecules in which molecules love water that is they dissolve…

Q: "The three respiratory enzyme complexes in the mitochondrial inner membrane tend to associate with…

A: Introduction: Three respiratory enzyme complexes make up the respiratory chain in the inner…

Q: Acetylcholinesterase (ACHE) is a key enzyme involved in the transmission of nerve impulses. The…

A: A serine protease enzyme has a catalytic triad consists of serine, histidine and aspartic acid. In…

Q: In addition to Oz binding, changes in other chemical conditions can result in hemoglobin changes. pH…

A: pH effects the ability of haemoglobin to carry oxygen. This can be explained with help of Bohr's…

Q: What reaction is catalyzed by this enzyme (structures of molecules not needed)? Explain why this…

A: In the fifth step of glycolysis, triose-phosphate isomerase catalyzes the isomerization or…

Q: Lactic Acid (shown below) is built up in the body during intense workouts as a result of glycolysis.…

A: The carboxylic acid group (COOH) of lactic acid has a pKa of 3.85. The physiological pH of our body…

Q: Which of the following statements about the dUTP substrate for a dUTPase is true?

A: Option 2 is correct. The dUMP product is more easily formed when catalyzed by the dUTPase because…

Q: Why does mitochondrial NADH yields more ATPs than cytosolic NADH?

A: NADH is also called a reduced compound. NADH molecules are generated inside the cell through…

Q: In Oxidative Phosphorylation (The electron transport chain) NADH in general produces more ATP than…

A: Oxidative phosphorylation is a metabolic pathway where ATP formation takes place, and this is when…

Q: What drives the transport of fatty acids for b-oxidation into the mitochondrial matrix? The…

A: The transport of fatty acids from Cytosol into the mitochondrial matrix occurs by carnitine shuttle…

Q: What are some of the difficulties in extracting respiratory complexes from the inner mitochondrial…

A: Mitochondria: The inner and outer mitochondrial membranes divide the mitochondria from the…

Q: Liver alcohol dehydrogenase (ADH) is relatively nonspecific and will oxidize ethanol or other…

A: In competitive inhibition, the inhibitor 'competes' with the substrate for binding at the active…

Q: Why does oxygen have imperfect binding to the heme group?

A: Protein is the largest class of macromolecules that are synthesized by a combination of twenty…

Q: Which of the following is TRUE about cytochrome c protein? O As a part of the ETC chain, it changes…

A: Cytochrome c is a protein that is present on the mitochondrial intermembrane. It shuttles electrons…

Q: This UCP1 protein allows the protons (H+) of the mitochondrial intermembrane space to enter the…

A: UCP1 is a unique protein that plays a critical role in thermogenesis and energy balance, and it may…

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.