Question

in the respiratory pathway, glucose is oxidised to produce energy in different ways. explain and draw a flow diagram to support your answer​

Answer 1

Explanation:

Answer

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 aerobic respiration break down of pyruvate takes place in presence of oxygen to give rise 3 molecules of carbon dioxide and water. And pyruvate is converted into ethanol and carbon dioxide.

Answer 2

Explanation:

1) Aerobic respiration : In this case pyruvate is broken down into water and carbon dioxide along with release of energy.Glucose (carbohydrate) is oxidized to carbon dioxide. The acceptor for the electrons is oxygen which is reduced to water. The chemical bond energy of glucose is released as ATP and heat. This is the primary source of ATP for all aerobic organisms. 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 O².