Which describes aerobic respiration

To unlock all 5, videos, start your free trial. Aerobic respiration is the process of producing cellular energy involving oxygen. Cells break down food in the mitochondria in a long, multistep process that produces roughly 36 ATP.

The first step in is glycolysis, the second is the citric acid cycle and the third is the electron transport system. Aerobic respiration is the process of breaking down the food that comes into a cell using oxygen to help power that process. A cell would do this in order to generate a lot of ATP now the basic chemical reaction is C6H12O6 that's glucose plus 6O2 and that's oxygen gas yielding 6 carbon dioxide gas molecules which eventually diffuse out of the cell and 6 water molecules and a bucket load of energy.

Generally it produces 6 ATP molecules for every glucose molecule that goes in. Now aerobic respiration can be used for other molecules besides glucose but we usually focus on glucose it's one of the primary fuel sources and then once you understand that you just say okay, we'll make some tiny modifications and see how we can plug in proteins and other molecules.

Now like I said it produces 36 ATP but compared to anaerobic respiration without using oxygen it's slow and it does have that whole requirement about oxygen which is one of those annoying things I mean you hold your breath for a couple of minutes and you get kind of dizzy.

Well, let's a look at how this happens the key organelle of aerobic respiration is the mitochondria. Now the first step in the break down of glucose is glycolysis which happens in the cytosol or the cytoplasm of the cell. But once it's done then the molecules enter the mitochondria where it undergoes the series of chemical reactions that are called the Krebs cycle sometimes it's also called the tricarboxylic acid cycle or the citric acid cycle depending on which text book you use.

Obligate aerobes are organisms that require molecular oxygen because they produce ATP only by aerobic respiration. Facultative anaerobes, on the other hand are capable of aerobic respiration but can switch to fermentation, an anaerobic ATP-producing process, if oxygen is unavailable.

Learning Objectives Define aerobic respiration. Give the overall chemical reaction for aerobic respiration. As animals, insects undergo aerobic respiration to create the ATP needed for processes such as metabolism, reproduction, growth, and movement.

You will track aerobic respiration using a carbon dioxide sensor. If aerobic respiration is occurring will there be an increase or a decrease in carbon dioxide concentration? Skip to main content. Optional Lab Activities. Search for:. Aerobic Respiration Lab Objectives At the conclusion of the lab, the student should be able to: define the following terms: fermentation, anaerobic respiration, germination, aerobic respiration list the organelle in eukaryotic cells responsible for generating the greatest number of ATP molecules during aerobic respiration list 2 examples of fermentation pathways give the reactants and products for the overall equation of anaerobic fermentation give the reactants and products for the overall equation of aerobic cellular respiration explain the fundamental differences between fermentation anaerobic respiration and cellular respiration aerobic respiration explain why we used an increase in carbon dioxide concentrations to indicate cellular respiration took place.

Respiration lab Biology I from Lumen Learning.