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Why can all organisms use glycolysis but not all organisms can use the Kreb's cycle and ETC?
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Where is the last three stages of cellular respiration?
There are three main stages of cellular respiration: 1) glycolysis, 2) Krebs Cycle, and 3) the Electron Transport Chain (ETC).
Why can all organisms prokaryotes and eukaryotes use glycolysis but not all organisms use the Krebs cycle and ETC only eukaryotes do?
The main reason for this is evolution. When we say an organism is evolved, it means that they have more advanced systems - and their pathways are more complex. Even genetically speaking, evolved organisms generally have more types of genes for a particular function. Now, when you talk about cellular metabolic pathways, lower organisms like prokaryotes are only evolved enough to code for the enzymes that are a part of or regulate glycolysis. They do not contain the enzymes, as well as the structures (mitochondria) to conduct higher cellular functions like Krebs cycle or ETC. In comparison, eukaryotes have genes for the same and thus are able to carry out these functions. It all comes down to whether it has a gene to do that particular function.
4 phases in aerobic cellular respiration?
The four phases in aerobic cellular respiration are: 1. Glycolysis 2. Krebs cycle 3. oxidative phosphorylation 4. Electron transport chain (ETC)
What is the four main steps of cellular respiration?
There are four main steps in cellular respiration are glycolysis, Link Reaction, Krebs Cycle and Hydrogen Transport Chain.In glycolysis, glucose molecules are broken down into pyruvate and pyruvic acid. Two molecules of ATP are produced in this cycle. This is fed into a link reaction, where some chemical rearrangement occurs.The Krebs cycle, also called the Citric acid cycle, allows extensive rearrangement of the atoms to occur. 2 molecules of ATP are produced in this cycle, bringing the total to four so far. Carbon dioxide is released as a byproduct, while the hydrogen atom is passed on to the next cycle.The hydrogen transport chain, also called the electron transport chain, is the last step of cellular respiration. In this phase, the electron belonging to the hydrogen is passed along a chain of receptors, with oxygen as the final receptor. The hydrogen atom is not used up in the reaction. This step provides the most ATP, with 32 molecules being produced.
Why do the nadh created in glycolysis produces less ATP in the etc that the nadh produced in the Krebs cycle?
this is a guess for me too. but some studies show that o external NADH produce less ATP. This is because o external NADH does not go through all the protein complexes.
Where is the location of glycolysis Krebs cycle and etc?
mitochondria
What are the three stages of cellular respiration in order?
Glycolysis, the Citric Acid Cycle (Krebs Cycle), and the Electron Transport Chain.
Which is NOT a pathway in the oxidation of glucose?
gluconeogenisis. what is part of it: Glycolysis, Krebs cycle, and the ETC and oxidative phosphorylation.
What are the phases of cellular respiration?
they 3 phases of cellular respiration are glycolosis, electron transport chain, and the Calvin cycle
What are the different stages cellular respiration called?
1. glycolysis 2. Krebs cycle 3. ETC
What are the three phases of the cellular respiraton process?
A. Glycolysis B. The Krebs Cycle C. ETC (electron transport chain)
What is the sequence of events in cellular respiration?
glycolysis, fermentation, Krebs cycle, ETC (Electron Transport Chain), Actually fermentation is not part of cellular respiration, and occurs only without oxygen, which cellular respiration depends on. -- Fermentation does occur, but only when no oxygen is present. It IS part of cellular respiration.
What all has 3 stages?
Cellular Respiration has three stages; Glycolysis, Krebs Cycle, and ETC (Electric Transport Chain). This just gives you some ATP (energy).
Where is the last three stages of cellular respiration?
There are three main stages of cellular respiration: 1) glycolysis, 2) Krebs Cycle, and 3) the Electron Transport Chain (ETC).
Why can all organisms prokaryotes and eukaryotes use glycolysis but not all organisms use the Krebs cycle and ETC only eukaryotes do?
The main reason for this is evolution. When we say an organism is evolved, it means that they have more advanced systems - and their pathways are more complex. Even genetically speaking, evolved organisms generally have more types of genes for a particular function. Now, when you talk about cellular metabolic pathways, lower organisms like prokaryotes are only evolved enough to code for the enzymes that are a part of or regulate glycolysis. They do not contain the enzymes, as well as the structures (mitochondria) to conduct higher cellular functions like Krebs cycle or ETC. In comparison, eukaryotes have genes for the same and thus are able to carry out these functions. It all comes down to whether it has a gene to do that particular function.
What are the three processes that occur during cell respiration?
The three major reactions are-Glycolysis-Electron transport chain (ETC)-Krebs Cycle
4 phases in aerobic cellular respiration?
The four phases in aerobic cellular respiration are: 1. Glycolysis 2. Krebs cycle 3. oxidative phosphorylation 4. Electron transport chain (ETC)
