The following are steps of cellular respiration except
(1 point)
O glycolysis
• the Krebs cycle
• electrolysis
electron transport chain
The correct answer is:
electrolysis
The correct answer is electrolysis.
To identify the step of cellular respiration that is not included among the given options, we must first understand the process of cellular respiration.
Cellular respiration is the metabolic process in which cells convert glucose and oxygen into usable energy in the form of adenosine triphosphate (ATP). It consists of three main stages: glycolysis, the Krebs cycle (also known as the citric acid cycle or the TCA cycle), and the electron transport chain.
Now, let's go through each option listed and find which one does not belong.
1. Glycolysis: This is the first step of cellular respiration, during which glucose is split into two molecules of pyruvate. It occurs in the cytoplasm of the cell and does not require oxygen. Glycolysis is indeed a step of cellular respiration.
2. The Krebs cycle: Also known as the citric acid cycle or the TCA (tricarboxylic acid) cycle, this is the second stage of cellular respiration. It takes place in the mitochondria and involves a series of chemical reactions that break down the pyruvate from glycolysis. The Krebs cycle is certainly a step of cellular respiration.
3. Electrolysis: Electrolysis is not a step of cellular respiration. It is a chemical process that uses an electric current to drive a non-spontaneous chemical reaction. While electrolysis is relevant to other areas of science and technology, it is not a component of cellular respiration.
4. Electron transport chain: This is the final step of cellular respiration, occurring in the inner mitochondrial membrane. It involves a series of proteins and molecules that transfer electrons and generate a proton gradient, ultimately leading to the synthesis of ATP. The electron transport chain is indeed a step of cellular respiration.
Based on the above analysis, the step of cellular respiration that is not included among the given options is electrolysis.