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Biology review sheet cellular respiration answer
Biology review sheet cellular respiration answer
Summary of the three stages of cellular respiration
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(Enger and Ross., 2003) There are three steps included in the cellular respiration process which are glycolysis, the Krebs cycle, and lastly the electron transport chain. Glycolysis is the breakdown of a glucose molecule in
Many organisms use energy to perform their cellular functions. That energy comes from the energy that is stored in food then converted to adenosine triphosphate or ATP. ATP can be obtained with or without oxygen, aerobic respiration and anaerobic respiration. Aerobic respiration produces carbon dioxide (CO2) as a by-product while anaerobic respiration produces Ethanol (C2H6O) or Lactic acid (C3H6O3). In aerobic respiration the “CO2 produced during cellular respiration can combine with water to produce carbonic acid.”
In Aerobic Cellular Respiration there is 3 stages. In the 3 stages there is Glycolysis, Krebs Cycle, and Electron Transport Chain. Aerobic Cellular Respiration equation is C6 H12 O6 + 6O2 → 6CO2 + 6H2O. All three stages where it all occurs is the Mitochondria. Aerobic Cellular Respiration is only used for Eukaryotic.
In cellular respiration, chemical energy that comes from fuel molecules is converted into ADP. ADP join with phosphate, then converts into ATP to form energy currency of cells. Cells release phosphate after consuming the ATP, which join with ADP to renew the cycle. The cycle state is called the glycolysis, electron transport and the acid cycle. They both provide energy that is used by plants, and recycle each other's "waste" for
Cellular Respiration Lab Introduction In this lab, the primary investigation was to discover which factors affect cellular respiration. In this particular inquiry, the factor tested was the amount of time the lentil seeds were germinated. This study was performed in order to understand the process of cellular respiration as well as be able to measure and observe gas concentration as a result of impacting factors. Cellular respiration is necessary for life-processes, converting glucose and oxygen into ATP, carbon dioxide, and water, in a series of metabolic reactions.
In cellular respiration, your body uses glucose and oxygen in a process to make energy. The glucose is split in the cytoplasm of your cell, then its atoms go through a complex process which turns them into ATP, a useable energy source for your body. ATP can either be used, or stored in lipids for long term use. Lipids are one of the most diverse macromolecules because of the many functions they can perform. They make up a cell membrane, so without them, there would be no humans, they also can be used as a long term energy storage in the form of fat.
● Glycolysis can not proceed without a continual source of NAD+ to be reduced by the generation of electrons from splitting glucose. ● Without the small amount of ATP generated by glycolysis (2 net ATP) organisms would not have the ability to oxidize glucose which is the primary source of energy for most cells. ● In order to regenerate NAD+, pyruvate is reduced by NADH to form lactate (deprotonated lactic acid) and NAD+. This allows glycolysis to proceed.
We went to test how long it would take for the test tube to turn yellow and how much of the yellow liquid would deplete over the 48 hour time span. We filled the test tube with Bromothymol Blue Solution, allowing for the runner to blow into the liquid through a straw. After we completed the exercise part of the experiment, small plants were placed inside the test tubes and the test tubes were sealed away in a dark area. The objective was to see how exercise affects the disposal of carbon dioxide from cellular respiration and how light affects the absorption of carbon dioxide. According to the results, the longest time recorded was when the runner ran for a second time, while the shortest time was when the runner ran for the first time.
Cell Respiration Lab Research Question What is the optimal temperature for germinating pea-seeds where the rate of respiration is the greatest? Background Information Cell Respiration refers to the biochemical process conducted by the cells of an organism that combines glucose and oxygen to produce energy in the form of ATP, along with two by-products, water and carbon dioxide. The equation representing this chemical reaction is shown below. C6H12O6 + 6 O2 6 CO2 + 6 H2O
The Effect of Sugar Concentration on CO2 Production by Cellular Respiration in Yeast Introduction In this lab, our main focus was to find how sugar concentration affect yeast respiration rates. This was to simulate the process of cellular respiration. Cellular respiration is the process that cells use to transfer energy from the organic molecules in food to ATP (Adenosine Tri-Phosphate). Glucose, CO2, and yeast (used as a catalyst in this experiment) are a few of the many vital components that contribute to cellular respiration.
Seed type and cellular respiration All cells perform cellular respiration to maintain homeostasis and growth. Plants can produce sugar from suns energy, when they need energy they metabolize stored sugars through cell respiration. Plants need the energy to perform different task such as transportation or growth. Similarly to human cell respiration, cellular respiration rate in plants isn’t always consistent and depends on many other factors. After a seed is dropped from plant it goes into a resting period (dormacy) where the stored energy is released very slowly.
Cellular respiration occurs from gathering glucose in food and using the oxygen in the air to provide energy in the form of ATP. Glucose is first broken down inside the cytoplasm of the cell through the process of glycolysis. In the second stage, pyruvate (products of glycolysis) molecules are taken into the mitochondria and changed into 2-carbon molecules. After the new molecules are created, they go through a process called Krebs cycle, in which the molecules form compounds that will be used during the next step of respiration as well as a small amount of ATP. The next and final stage is the creation of ATP using the energy in an election transport chain.
Breathing is the transportation of oxygen across from the air in the lungs to circulating red blood cells (erythrocytes) which pass on the oxygen onto cells which require and utilise the oxygen, during aerobic respiration, to produce energy in the form of ATP. This biochemical reaction produces carbon dioxide as a waste product, and it is transported, using the red blood cells (RBCs), back to the lungs and exhaled. Figure 1 shows the relationship between breathing and cellular respiration, with the two connected by the gas carrying red blood cells. Notice the requirement for oxygen by the cells to produce energy in the equation at the top – breathing is how this requirement is fulfilled, whilst venting the waste products from respiration
This occurs in both eukaryotic cells, as well as, prokaryotic cells. In the prokaryotic cells, it takes place in the cytoplasm; in the eukaryotic cells, it takes place in the mitochondria. Oxygen is vital for ATP production
Glycolysis: To begin the process of harvesting the energy received from glucose, glycolysis first occurs. There are 10 steps involved in Glycolysis. The goal of glycolysis is to convert 1 glucose molecule to 2 Pyruvate molecules. Glucose + 2NAD+ + 2ADP + 2P 2 Pyruvate + 2NADH + 2ATP + 2H20 + 2H+ . Steps one to three is when the energy is invested.
