Biology Question, difference between Anabolism and Catabolism? | Yahoo Answers

What is the difference between catabolic and anabolic pathways?

compare the energy usage in anabolic and catabolic pathways

Heat An Energy Waste. Bone-building cells use ATP in the production of calcium phosphate crystals. Could you please tell me in easy words? For example, there are two enzymatic pathways for glucose metabolism. The energy of motion -- illustrated by the jumping stick figure below.

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Metabolism builds bigger molecules from smaller ones, and takes molecules apart to use the atoms and energy stored in them. Answer Questions List the factors that you need to consider when choosing the hands disinfectant to use in your microbiology lab.? This bond can be broken in a reaction involving water. ATP is specialized for direct and rapid transfers of energy. Can anyone help me with my biology? However, two steps of glucose anabolism use an entirely different set of enzyme-catalyzed reactions.

That is, relatively few types of raw materials are used to synthesize a wide variety of end products. This results in an increase in cellular size or complexity—or both. Anabolic processes produce peptides, proteins, polysaccharides, lipids, and nucleic acids.

These molecules comprise all the materials of living cells, such as membranes and chromosomes, as well as the specialized products of specific types of cells, such as enzymes, antibodies, hormones, and neurotransmitters. Catabolism, the opposite of anabolism, produces smaller molecules used by the cell to synthesize larger molecules, as will be described below. Thus, in contrast to the divergent reactions of anabolism, catabolism is a convergent process, in which many different types of molecules are broken down into relatively few types of end products.

The energy required for anabolism is supplied by the energy-rich molecule adenosine triphosphate ATP. This energy exists in the form of the high-energy chemical bond between the second and third molecule of phosphate on ATP. During anabolic reactions, the high-energy phosphate bond of ATP is transferred to a substrate a molecule worked on by an enzyme in order to energize it in preparation for the molecule's subsequent use as a raw material for the synthesis of a larger molecule.

Although anabolism and catabolism occur simultaneously in the cell, the rates of their chemical reactions are controlled independently of each other. For example, there are two enzymatic pathways for glucose metabolism. The anabolic pathway synthesizes glucose, while catabolism breaks down glucose. The two pathways share 9 of the 11 enzymatic steps of glucose metabolism, which can occur in either sequence i.

However, two steps of glucose anabolism use an entirely different set of enzyme-catalyzed reactions. There are two important reasons that the cell must have separate complementary anabolic and catabolic pathways. First, catabolism is a so-called "downhill" process during which energy is released, while anabolism requires the input of energy, and is therefore an energetically "uphill" process. At certain points in the anabolic pathway, the cell must put more energy into a reaction than is released during catabolism.

Such anabolic steps require a different series of reaction than are used at this point during catabolism. Second, the different pathways permit the cell to control the anabolic and catabolic pathways of specific molecules independently of each other. This is important because there are times when the cell must slow or halt a particular catabolic or anabolic pathway in order to reduce breakdown or synthesis of a particular molecule. If both anabolism and catabolism used the same pathway, the cell would not be able control the rate of either process independent of the other: Opposite anabolic and catabolic pathways can occur in different parts of the same cell.

For example, in the liver the breakdown of fatty acids to the molecule acetyl-CoA takes place inside mitochondria. Mitochondria are the tiny, membrane-bound organelles that function as the cell's major site of ATP production.

The buildup of fatty acids from acetyl-CoA occurs in the cytosol of the cell, that is, in the aqueous area of the cell that contains various solutes. This same concept applies to the entire organism. Take a human for example. As a child, youth naturally provides an anabolic dominant metabolism to support the growth requirements necessary for healthy development. This is the reason why children often bounce back quicker from illness and injury. Once fully mature, a balance between catabolic and anabolic activity is found to sustain the body.

Maintaining this balance is crucial to ensuring quality of life and longevity, as it impacts every aspect of health. If oxygen is present, we can get a bigger pay off from the pyruvate and take use of the NADH in making a lot of ATP by undergoing the citric acid cycle, and then oxidative phosphorilation via chemiosmosis and the ETC. What are the three necessary steps in going from glycolysis to the citric acid cycle?

How many times does the citric acid cycle occur for each molecule of glucose? How many NADHs are formed for each turn in the citric acid cycle? How many total carbons are lost as pyruvate is oxidized during the citric acid cycle?

How many FADH2 have been formed during the citric acid cycle? How many ATPs are formed from the citric acid cycle? How many FADHs are formed from 1 molecule of glucose? How many molecules of FADH2s are formed from 1 molecule of glucose? How many molecules of ATP are formed from 1 molecule of glucose?

What happened to the six-carbon molecule found in the original glucose molecule? Why is oxygen the final electron acceptor? Because it is so electronegative.

Iamges: compare the energy usage in anabolic and catabolic pathways

compare the energy usage in anabolic and catabolic pathways

The anabolic pathway synthesizes glucose, while catabolism breaks down glucose. As a child, youth naturally provides an anabolic dominant metabolism to support the growth requirements necessary for healthy development.

compare the energy usage in anabolic and catabolic pathways

Proteins are built through the linking of amino acids into chains called polypeptides. When we eat, our body breaks down nutrients - this releases energy, which is stored in molecules of adenosine triphosphate ATP in the body. Exercise reverses unhealthy effects of inactivity.

compare the energy usage in anabolic and catabolic pathways

Article last updated on Tue 18 July We have analyzed the sugar content of common everyday foods and drinks. The energy stored in ATP is the fuel for anabolic reactions. But the molecules produced by the Krebs cycle can also be used as precursor molecules, or raw materials, for anabolic reactions that make proteins, fats, and carbohydrates. One gram of fat produces 9 caloriescompared with 4 calories from a gram of protein or carbohydrate. This is the reason why children often bounce back quicker from illness and injury. Good question, it is often not very clear what the how to take down a baby trend playard between these topics are.