What are the different ways in which glucose is oxidised to provide energy in various organisms

Following are the different ways in which the breakdown of glucose takes place Anaerobic Respiration The anaerobic respiration process takes place in the absence of oxygen. For example: In yeast during fermentation. In this process, the pyruvate is converted into ethanol and carbon dioxide. Aerobic Respiration In aerobic respiration, breakdown of pyruvate takes place in the presence of oxygen to give rise to 3 molecules of carbon dioxide and water. The release of energy in aerobic respiration is much more than anaerobic respiration. Lack of Oxygen At times when there is a lack of oxygen in our body, mainly during vigorous activity, in our muscles, pyruvate is converted into lactic acid which is a 3 carbon molecule compound. The formation of lactic acid in muscles causes cramp. Question Description What are the different ways in which glucose is oxidized to provide energy in various organisms.? for Class 10 2023 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about What are the different ways in which glucose is oxidized to provide energy in various organisms.? covers all topics & solutions for Class 10 2023 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What are the different ways in which glucose is oxidized to provide energy in various organisms.?. Here you can find the meaning of What are the different ways in which glucose is oxidized to pro...

First the glucose is broken down into a 3 Carbon molecule called Pyruvate in the cytoplasm of the cell in a process called Glycolysis. The process can further proceed using three different pathways depending on the amount of oxygen present. • In the presence of sufficient Oxygen, Pyruvate molecules are broken down into Water and Carbon dioxide and Energy is released. This process is called aerobic respiration. • In the lack of oxygen, Pyruvate molecules are converted into lactic acid and energy is released. This takes place in our muscles especially while exercising. The lactic acid thus produced causes cramps in our muscles. • In the total absence of OxygenPyruvate molecules are broken down into Ethanoland Carbon dioxide and Energy is released. This process is called anaerobic respiration and takes place in yeast cells. •

What are different ways in which glucose is oxidised to provide energy in various organisms? A. Breaking down of glucose involves two processes. In the first step, it is broken into three carbon molecules called pyruvate. The pyruvate is further broken down into energy in following different ways in various organisms. 1) Aerobic respiration : In this case pyruvate is broken down into water and carbon dioxide along with release of energy. It commonly occurs in mitochondria of cells. 2) Anaerobic respiration in yeast : In yeast cells during fermentation pyruvate is converted into ethanol and C02 in the absence of 02. 3) Anaeorbic respiration in muscles: Due to lack of oxygen, eg. during vigorous running or exercise, in human muscles, pyruvate is converted to lactic acid.

The two ways in which glucose is oxidized to provide energy in diverse organisms are listed below. • Aerobic respiration • Anaerobic respiration Aerobic respiration • It occurs in the presence of oxygen, respiration occurs, and the products are carbon dioxide, energy, and water. • Glucose + Oxygen → Carbon dioxide + Water + Energy C 6 H 12 O 6 ( l ) + 6 O 2 ( g ) → 6 CO 2 ( g ) + 6 H 2 O ( l ) + Energy Anaerobic respiration • It occurs in the absence of oxygen, respiration occurs, and the products generated are lactic acid or ethanol and energy. • Glucose → Alcohol + Carbon dioxide + Energy Glucose → Lactic acid + Energy C 6 H 12 O 6 ( l ) → 2 C 3 H 6 O 3 ( l ) + Energy Differences between Aerobic and Anaerobic respiration: Aerobic Respiration Anaerobic Respiration When this type of respiration occurs, oxygen is present. When this type of respiration occurs, oxygen is not present. This type of respiration involves the exchange of gases. This type of respiration do not involve the exchange of gases. It may be found in the cytoplasm and the mitochondria. It is found only in the cytoplasm. Glucose degrades to carbon dioxide and water. Glucose is broken down into ethanol, carbon dioxide, and energy. This type of respiration is seen in all higher creatures, including mammals. This kind is used by lower organisms such as bacteria and yeast. It occurs during excessive activity in other creatures.

Solution At first glucose (6 carbon molecules ) is broken in the cytopasm of cells of all organisms. This process yields a 3 carbon molecule compound called pyruvate. Further break down of pyruvate takes place in different manners in different organisms. → Anaerobis Respiration: This process takes place in absence of oxygen, e.g. in yeast durring fermentionl. In this case, pyruvate is converted into ethanol and carbon dioxide. → Aerobic Respiration: In aerobic respiration, the breakdown of pyruvate takes place in presence of oxygen to give rise to 3 molecules of carbon dioxide and water. The release of energy in aerobic respiration is much more than anaerobic resipration. → Lack of Oxygen: Sometimes, when there is lack of oxygen, especially during vigorous activity, in our muscles, pyruvate is converted into lactic acid (3 carbon molecule compounds). Formation of lactic acid in muscles causes cramp.