what are the different ways in which glucose oxidized to provide energy in various organisms?
Answers
Answer:
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.
Explanation:
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Explanation:
Glucose is the primary source of energy for living organisms.
There are two ways in which glucose is oxidized to provide energy in various organisms.
Aerobic respiration:
Aerobic respiration is the process that leads to the complete oxidation of organic substances in the presence of oxygen and releases CO2, water, and a large amount of energy present in the substrate.
It occurs in higher organisms.
It takes place in the cytoplasm and mitochondria.
It involves three main stages: Glycolysis, the Citric acid cycle, and the Electron transport chain.
Anaerobic respiration:
It is also known as fermentation.
It is a cellular respiration process that happens without the presence of O2.
It takes place in the cytoplasm.
Lactic acid fermentation and alcoholic fermentation are the two types of anaerobic respiration.
Example - Lactic acid bacteria, E.coli, Yeast
Endproducts of anaerobic respiration:
Lactic acid fermentation end products:
Pyruvic acid
2. Alcoholic fermentation end products:
Ethanol
Carbon dioxide.