Concept explainers
To discuss:
Mitochondrial proton pumps, the chemiosmotic mechanism, and ATP synthase in producing ATP.
Introduction:
Mitochondria have two membranes: one is the outer mitochondrial membrane and the other is the inner mitochondrial membrane. Between these two membranes, there is a mitochondrial membrane space. Mitochondrial matrix is present inside the mitochondria. NADH and FADH2 are synthesized in the cytoplasm and the mitochondrial matrix, through glycolysis and Krebs cycle. These high energy compounds enter the inner mitochondrial membrane, transport the electrons in the electron transport chain, produce H2O from oxygen, and produce ATP molecules. An electron transport molecule has four enzyme complexes that are used for the transfer of enzyme molecules for the production of ATP and water molecules.
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A&P UNITY AND FUNCTION ACCESS
- Methods of ATP production –aerobic, anaerobic and other – when are they used, how do they work,how long do they last, what types of fuel do they utilize, which is favored by cancer cells?arrow_forwardGlycolysis and Krebs cycle produce ATP on which levelarrow_forwardStarting molecule and ending molecule of glycolysis, bridge reaction, krebs-citric acid cycle, and electron transport chain.arrow_forward
- NADH2, AcetylCoA and FADH2arrow_forwardThe F-class ATP synthase and the V-class proton pumps are similar in many ways. How are they different? their subunit composition the ion with which they interact none of the above their subcellular localizationarrow_forwardactive transport when no ATP is available is faster than when ATP is available true or false?arrow_forward
- the metabolic roles played in cells by the coenzyme NAD+ and NADP+arrow_forwardCellular location where TCA Cycle reactions occur. Cytoplasm O Endoplasmic Reticulum Mitochondrial Matrix O Nucleusarrow_forwardassuming each NADH produces 3 ATP and each fadh2 produces 2 ATP in oxidative phosphorylation (perfect world scenario), how many ATP molecules can one glucose molecule make via cellular respiration under aerobic conditionarrow_forward
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning