Cellular Respiration Lab Report

Cellular Respiration is the physiological process of converting molecules into ATP. This process can occur in bacteria, protists, fungi, plants, and animals. It uses Oxygen (02) and Glucose (C6H1206) to transfer and transform electrons. Then it produces carbon dioxide (CO2) and Water (H2O). Thus, it is read as C6H12O6 + 6O2 --> 6H2O + 6CO2 + 32ATP. Respiration is split into three steps Glycolysis, Citric Acid Cycle, and Electron Transfer Chain (ETC).

In contrast, there are four metabolic stages happened in cellular respiration, which are the glycolysis, the citric acid cycle, and the oxidative phosphorylation. Glycolysis occurs in the cytoplasm, in which catabolism is begun by breaking down glucose into two molecules of pyruvate. Two molecules of ATP are produced too. Some of they either enter the citric acid cycle (Krebs cycle) or the electron transport chain, or go into lactic acid cycle if there is not enough oxygen, which produces lactic acid. The citric acid cycle occurs in the mitochondrial matrix, which completes the breakdown of glucose by oxidizing a derivative of pyruvate into carbon dioxide. The citric acid cycle produced some more ATPs and other molecules called NADPH and FADPH. After this, electrons are passed to the electron transport chain through

In this lab we are measuring the amount of oxygen used in both germinating and non germinating peas. We are measuring the oxygen consumption by taking a reading of a respirometer submerged in two water baths. The first bath will be cold water and the second warm to determine the effect of temperatures on oxygen consumption. Our negative control will be glass beads to measure to increase or decrease in atmospheric pressure or temperature changes. There is a direct relationship between oxygen consumption and Carbon Dioxide produced, therefore the more O2 consumed the more CO2 produced. To keep the amount of CO2 produced from canceling out any pressure gained or lost from the consumption of

Respiration consists of a complicated series of chemical reactions. The first step of cellar respiration, called glycolysis, takes place in the cytoplasm. The two main components are oxygen and

Cellular respiration is the chemical process in which organic molecules, such as sugars, are broken down in the cell to produce utilizable energy in the form of ATP. ATP is the chemical used by all of the energy-consuming metabolic activities of the cell. In order to extract energy from these organic molecules, cellular respiration involves a network of metabolic pathways dedicated to this task.

In cellular respiration, the oxidation of glucose is carried out in a controlled series of reactions. At each step or reaction in the sequence, a small amount of the total energy is released. Some of this energy is lost as heat. The rest is converted to other forms that can be used by the cell to drive or fuel coupled endergonic reactions or to make ATP.

To be able to carry on metabolic processes in the cell, cells need energy. The cells can obtain their energy in different ways but the most efficient way of harvesting stored food in the cell is through cellular respiration. Cellular respiration is a catabolic pathway, which breaks down large molecules to smaller molecules, produces an energy rich molecule known as ATP (Adenosine Triphosphate) and a waste product that is released as CO2.

The first part of cellular respiration is glycolysis where energy is spent to break a glucose molecule down into two pyruvate molecules. A glucose molecule comes from your food and has 6 carbons on it. Glycolysis partially breaks

The first step of cellular respiration is glycolysis (does not involve oxygen), which takes place in the cytoplasm of the mitochondria and it breaks glucose down

The overall goal being completed by cellular respiration is the building and the making of ATP. An important step in the cellular respiration process is known as Oxidation Phosphorylation, which occurs in the Mitochondria, or the power house of the cell. Glucose that is absorbed into the cells is used in this process. The energy from glucose is taken and energized and moved into an electron transport chain to be transported down the chain and release energy. This energy released is then captured and is used to pump what is known as H+ across the membrane of the cell, which powers ATP Synthase, forming ADP into the ATP energy source. Chemiosmosis takes place during Oxidation Phosphorylation, which uses the energy of the hydrogen ions to synthesize ADP into ATP.

Also, unlike photosynthesis, cellular respiration is known as a decomposition reaction. During this reaction, the exergonic release of energy is produced by breaking glucose down into smaller ATP molecules, water and carbon dioxide which is released into the air, for use by plants, every time we exhale

Glycolysis is followed by the Krebs cycle, however, this stage does require oxygen and takes place in the mitochondria. During the Krebs cycle, pyuvic acid is broken down into carbon dioxide in a series of energy-extracting reactions. This begins when pyruvic acid produced by glycolysis enters the mitochondria. As the cycle continues, citric acid is broken down into a 4-carbon molecule and more carbon dioxide is released. Then, high-energy electrons are passed to electron carriers and taken to the electron transport chain. All this produces 2 ATP, 6 NADH, 2 FADH, and 4 CO2 molecules.

Cellular respiration is a sequence of three metabolic stages. Stage one is glycolysis and occurs in the cytoplasm. Stages two and three occur in the mitochondria and are respectively called the Krebs cycle and the electron transport chain. Both autotrophs and heterotrophs use these metabolic stages to produce the energy required to grow, reproduce and undertake maintenance, in the form of ATP (Flinders University , 2018). A step in the Krebs cycle can see an enzyme catalysed conversion of succinate to fumarate where an electron is transferred from one complex to another, a redox reaction (Knox, et al., n.d.). Substrate concentration is a variable used to increase the rate of a reaction. It is a limiting factor however, up until a certain point,

Eukaryotic cells produce the chemical energy they need through the processes of either oxidative phosphorylation or photophosphorylation. Oxidative phosphorylation is the last step in the process of cellular respiration and accounts for nearly 90% of ATP production during cellular respiration. During stage one of cellular respiration 2 ATP molecules are broken down to provide the energy necessary to start glycolysis. Each glucose molecule is broken down into 2 pyruvate molecules and 4 ATPs are formed. A net gain of two ATPs is realized. In stage two the pyruvate molecules enter into the mitochondrion of the cell. The pyruvate molecules are oxidized into the compound acetyl CoA. In stage three, the acetyl CoA passes into citric acid cycle (Krebs

    Cellular respiration is the group metabolic reactions that happen in the cell of living organism that creates adenosine triphosphate, ATP, from biochemical energy. The formula for cellular respiration is C6H12O6 +6O26CO2+6H2O+ATP.  This formula means glucose and oxygen are turned into water,carbon dioxide and adenosine triphosphate (ATP) energy through chemical reactions. Cellular respiration occurs in all cells which allows them to grow. Raphanus raphanistrum subsp. Sativus seed, also known as radish seed, undergo cellular respiration because they are not yet able to perform photosynthesis, which is how plants create their energy. Hymenoptera formicidae,commonly known as ants, undergo cellular respiration to produce the energy they need to live.