The following are steps of cellular respiration except(1 point)
Responses
electrolysis
electrolysis
glycolysis
glycolysis
electron transport chain
electron transport chain
the Krebs cycle
electrolysis
The steps of cellular respiration include glycolysis, the Krebs cycle, and the electron transport chain. The exception would be electrolysis.
To identify the step of cellular respiration that is not included in the given list, we first need to understand the process of cellular respiration. Cellular respiration is the process by which cells convert nutrients from food into adenosine triphosphate (ATP), which is used as an energy source for cellular activities. It consists of three main steps: glycolysis, the Krebs cycle (also known as the citric acid cycle or the tricarboxylic acid cycle), and the electron transport chain.
Now, let's examine the options provided:
1. Electrolysis: This process is not involved in cellular respiration. Electrolysis is a chemical reaction that uses an electric current to decompose a compound into its constituent elements. It is commonly used to split water into hydrogen and oxygen.
2. Glycolysis: This step is indeed a part of cellular respiration. It occurs in the cytoplasm and involves the breakdown of glucose molecules into two molecules of pyruvate. It is the initial step of cellular respiration and does not require oxygen.
3. Electron transport chain: This step is also a part of cellular respiration. It takes place in the inner mitochondrial membrane (in eukaryotic cells) and involves the transfer of electrons through a series of protein complexes. This transfer generates energy to pump protons across the membrane, establishing an electrochemical gradient that drives the synthesis of ATP.
4. The Krebs cycle: This step is an integral part of cellular respiration. It occurs in the mitochondria and involves a series of chemical reactions that further break down the pyruvate from glycolysis. The Krebs cycle generates high-energy molecules like NADH and FADH2, which are used in the electron transport chain to produce ATP.
Based on the above analysis, we can conclude that the step of cellular respiration that is not included in the given list is electrolysis.