IGCSE Coordinated Science: Aerobic and Anaerobic Respiration
Or during sudden bursts of physical activity when our circulatory systems simply are not quick enough to supply all our muscle cells with the oxygen necessary for aerobic respiration. Fermenting Wine: Grapes are crushed, thereby releasing the sugars within and allowing the yeast upon the grape skin to ferment the sugars under air tight and strictly controlled environments and so make wine
Glycolysis is the first stage in cellular respiration and does not depend on the presence of oxygen.40In cellular respiration, a series of molecules forming an electron transport chain alternately accepts and then donates electrons. Which statement best explains why more ATP is made per molecule of NADH than per molecule of FADH2?Fewer protons are pumped across the inner mitochondrial membrane when FADH2 is the electron donor than when NADH is the electron donor.9When the protein gramicidin is integrated into a membrane, an H+ channel forms and the membrane becomes very permeable to protons (H+ ions)
What is Aerobic Respiration? (with pictures)
Acetyl coA from pyruvate combines with a compound called oxaolacetate to produce citrate, or citric acid, which, in a series of steps involving NAD+, produces ATP as well as NADH and another molecule called FADH2, which has a similar function. At this point in the process, the electrons carried by NADH and FADH2 are used to provide the energy to attach phosphate groups to ADP molecules to produce up to 32 molecules of ATP
2011 cellular respiration
How is the alveoli adapted for its function? Feature Function Numerous alveoli Large SA for gas exchange Thin walls of alveoli Rapid diffusion of gases Thin film of moisture Oxygen can dissolve Dense capillary network Rapid and efficient gas exchange 70. Kills brain cells Figure 10.8 page 202 Figure 10.8 page 202 Figure 10.8 page 202 Figure 10.8 page 202 Figure 10.8 page 202 Figure 10.8 page 202 Figure 10.8 page 202 Figure 10.8 page 202 Figure 10.8 page 202 TIBBLAD Carbonic acid is an intermediate step in the transport of CO 2 out of the body via respiratory gas exchange
With anaerobic respiration the shortage of oxygen in the cells means that they must find another way to convert NADH back into NAD, this process is called fermentation. Electron Transport Chain The third stage consists mainly of the movement of H+, carried by NADH2, from the matrix into the intermembrane space via proton pumps in the mitochondria
Cellular Respiration
Remember that for each molecule of glucose, two Acetyl Co-A molecules are produced; therefore the KCAC occurs twice for each glucose, so all products here are X 2.
SparkNotes: SAT Subject Test: Biology: Cell Respiration
Alcoholic Fermentation Another route to NAD+ produces alcohol (ethanol) as a by-product: pyruvate + NADHethyl alcohol + NAD+ + CO2 Alcoholic fermentation is the source of ethyl alcohol present in wines and liquors. The Krebs cycle is called a cycle because one of the molecules it starts with, the four-carbon oxaloacetate, is regenerated by the end of the cycle to start the cycle over again
Intro to Cellular Respiration: The Production of ATP
YOU ARE AWESOME! Pingback: Oxygen Debt() Pingback: Regulation of Body Temperature() pc Please credit Steven A FInk for your analogy and explanation as some of the things your mentioned are taken verbatim from his lecture outlines (plagiarism is not cool). If you start to exercise, cellular respiration starts to speed up inside your muscle cells to produce more ATP, so your body starts breaking down sugars at a faster rate, you breathe oxygen at a faster rate and exhale carbon dioxide at a faster rate and give off a lot more heat at the same time
Aerobic Respiration
Citric acid cycle Each of the 2-carbon acetyl groups produced from the original glucose molecule is bonded to a pre-existing molecule of oxaloacetate to form citrate (i.e
Cell Respiration: Introduction
Since most textbooks provide abundant details of the chemical reactions in respiration, this tutorial will focus on how the chemical energy in glucose is converted into ATP and where respiration occurs in the cell. Carbohydrates, fats, and proteins can all be used as fuels in cellular respiration, but glucose is most commonly used as an example to examine the reactions and pathways involved
Cellular Respiration
This has strengthened the theory that mitochondria are the evolutionary descendants of a bacterium that established an endosymbiotic relationship with the ancestors of eukaryotic cells early in the history of life on earth. (Defects in either process can produce serious, even fatal, illness.) The Outer Membrane The outer membrane contains many complexes of integral membrane proteins that form channels through which a variety of molecules and ions move in and out of the mitochondrion
Aerobic and Anaerobic Respiration
When a glucose molecule is broken down in the presence of oxygen, energy is released, along with carbon dioxide and water as the by-products of the reaction. Krebs Cycle: In this stage, unused carbon molecules are used to initiate another series of chemical reactions to produce more NADH molecules, and another molecule known as FADH2
Each turn of the Krebs cycle is capable of producing one molecule of guanine triphosphate (GTP), which is easily converted into ATP, and an additional 17 molecules of ATP through the electron transport chain. Anaerobic Respiration Found in select prokaryotes, anaerobic respiration utilizes an electron transport chain much as aerobic respiration but instead of using oxygen as a terminal electron acceptor, other elements are used
Weegy: The Krebs Cycle is a series of enzymatic reactions in mitochondria involving oxidative metabolism of acetyl compounds to produce high-energy phosphate compounds that are the source of cellular energy User: Why is more ATP found in muscle cells than in bone cells? Muscle cells use energy less efficiently than bone cells. Muscle cells power motion, so they have greater energy needs than bone cells.Why is more ATP found in muscle cells than in bone cells? Muscle cells use energy less efficiently than bone cells
Cellular Respiration
Because there are a number of enzymes and steps involved in forming porphyrin rings, there are a number of possible points in the process where genetic defects could occur. Out of many possible types of fermentation processes, two of the most common types are lactic acid fermentation and alcohol fermentation (other types of fermentation such as methanol fermentation and acetone fermentation also exist)
Cell Respiration
Each and every cell in every organism (plant or animal) must have oxygen in order to make ATP so that each cell has the energy available to maintain its complex organization that is essential for that cell to carry out the basic functions required to stay alive. To make the electro leave the atom, you are going to have to add energy to it to make it move away from the positive charges--just like opposite poles of magnets require energy to be pulled apart
Cellular Respiration
Cell Biology Cellular Processes Cellular Respiration By Regina Bailey Biology Expert Share Pin Tweet Submit Stumble Post Share Sign Up for our Free Newsletters Thanks, You're in! About Today Living Healthy Biology You might also enjoy: Health Tip of the Day Recipe of the Day Sign up There was an error. The most efficient way for cells to harvest energy stored in food is through cellular respiration, a catabolic pathway for the production of adenosine triphosphate (ATP)
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