Question

what are the different ways in which glucose oxidized to provide energy in various organisms?​

Answer 1

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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Answer 2

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.