Adenosine Triphosphate (ATP)
ATP stands for Adenosine Triphosphate and is the immediate supply of energy for biological processes. The ATP consists of an organic nitrogenous base, Adenosine, which is one of the four bases found in a
DNA strand, it also consists of a ribose sugar with three phosphates joined by high energy bonds. The energy itself is stored in the form of high-energy chemical bonds; this energy is released on hydrolysis,
i.e. by the reaction with water, in a similar way peptide bonds are hydrolysed in proteins. ATP is adapted to is highly suited to its function and role within living organisms as it is easily broken down and is thus a store for immediate energy; it is also a small molecule and can easily move around cells and through membranes.
The production of ATP is usually associated with two principalities including respiration and mitochondria. It is common knowledge that respiration, which happens in all living organisms, produces energy and is expressed by the equation of:
Glucose + Oxygen Carbon Dioxide + Water + Energy
Respiration can be, aerobic, occurring in an oxygenated environment or anaerobic, occurring in oxygen lacking environments. The latter producing 2 molecules of ATP and the former producing between 36- 38
ATP molecules. The energy released from the respiration of glucose is used to add inorganic phosphate to ADP, producing ATP. This is achieved by glycolysis, krebs cycle and oxidative phosphorylation which are cumulatively known to be involved in aerobic cellular respiration. As we shall see, this process makes use of co-enzymes such as ADP and Dehydrogenases such as NAD+.
Glycolysis occurs in the cytoplasm of a cell and involves the production of 2 molecules of pyruvate which occurs when glucose undergoes phosphorylation, lysis and then oxidation, yielding pyruvate and 2 molecules of ATP along with 2 molecules of reduced NAD. In aerobic respiration only the reduced NAD generated here enters a mitochondrion and goes into the electron transport chair where it is used to generate 6 molecules of ATP. Hence, the net ATP produced from glycolysis are 8 molecules of ATP.
The next stage is krebs cycle which occurs in the matrix of the mitochondria, the resulting product from oxdative decarboxylation of pyruvate is progressively degraded by as series of reactions involving four dehydrogenations, two decarboxylations and ...
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...P the hexose would not be formed and none of the compounds would be produced, thus the plant would not exist.
ATP is used in active transport in plants, similar to the kidney in humans. The absorption of minerals, such as nitrates & phosphates require ATP, which are present in root hair cells. These nitrates and phosphates are used in protein and chlorophyll synthesis as well as synthesis of DNA, ATP and NADP, which are essential to the plants growth. However, the mineral salts which are carried in solution by the symplast or apoplast pathway need to cross the endodermal barrier, which is impermeable. They cross the endodermal barrier by active transport and continue their journey in solution as ions in the xylem.
In conclusion, ATP is adapted to its function and is probably one of the most important molecules in biological processes; it is produced in the mitochondria but is used all over the human body and is equally important in plants, where it is produced in the thylakoids. ATP is essential for survival as it allows the growth of autotrophs and thus supports all the food chains in the world, and also is important in maintaining and controlling the human internal environment.
Most philosophers in the seventeenth century were offering a response to Descartes’ dualism. In Descartes’ Meditations on First Philosophy, he presents an argument for a mind-body dualism. Mind-body dualism is a distinction in regard to substance. The mind is a substance completely different than the body. The mind is where thought takes place. Body is extensive substance. According to Descartes, the mind controls the body’s movements and it is also where perception takes place. Elizabeth of Bohemia, a correspondent of Descartes, points out a problem with this mind-body dualism. If it is the case that mind and body are substances of completely different kinds it does not seem possible for the mind to interact with the body. How is it that the mind, being a completely different kind of substance, could come into contact with the body in order to make the body move? This is one problem Cavendish will attempt to resolve in her argument. Cavendish will attempt to reject dualism and argue for a type of monism consisting of animate (thinking) and inanimate (not thinking) matter. Her system can resolve the interaction problem because there would only be one substance. If it is the case that there is only one kind of substance then there could not be an interaction problem because an interaction problem of this sort inherently requires more than one
Mitochondria are sub-cellular organelles which are found suspended in the cytoplasm of majority of eukaryotic cells. One of their functions is to produce energy in a form (ATP) that is useful for all cells to maintain the intra and extra cellular functioning. Mitochondrion has a matrix that is surrounded by two membranes called the inner membrane and the outer membrane. These two membranes are separated by an inter membrane space. The outer membrane has proteins embedded in them (most of which are porins- proteins that allow free transfer of molecules such as nutrients, ions, proteins etc.). While the outer membrane is smooth, the inner membrane is highly convoluted into structures called cristae to increase the surface area of the membrane. [1]
Since 776 BCE, the Olympics have been a way for people of different cultures to come together and compete in friendly competition. In 1892 the first modern Olympics were held in Athens, although it had been over a thousand years since the last game it still had brought together an assortment of different religions and ethnic groups together. Many factors shaping the Olympic Games reflect the changes that have taken place in our world since the last game in 393 CE in Greece such changes include woman’s suffrage, global economy, world wars, and proving competency.
Overview of Cellular Respiration and Photosynthesis Written by Cheril Tague South University Online Cellular Respiration and Photosynthesis are both cellular processes in which organisms use energy. However, photosynthesis converts the light obtained from the sun and turns it into a chemical energy of sugar and oxygen. Cellular respiration is a biochemical process in which the energy is obtained from chemical bonds from food. They both seem the same since they are essential to life, but they are very different processes and not all living things use both to survive ("Difference Between Photosynthesis and Cellular Respiration", 2017). In this paper I will go over the different processes for photosynthesis and the processes for cellular respiration and how they are like each other and how they are essential to our everyday life.
Outline and assess Descartes' arguments for the conclusion that mind and body are distinct substances.
Therefore, it is clear that Descartes does not give a satisfactory answer to Elizabeth regarding the union between the body and the soul. In this regard, it is understandable why Elizabeth gets upset when she fails to get the answer she needed. Ultimately, the question is not answered and Descartes advises Elizabeth not to pay much attention to the meditation in order to explain the union of the body and soul. Instead, she should think of the union as an independent phenomenon.
The human body is made of cells, which means that if the cells die, the human dies. Metabolism keeps the cells and thus the body alive and functioning properly and can be divided into two parts: catabolism and anabolism. Catabolism breaks down molecules in order to gain energy while anabolism synthesizes everything that the cells need.
Liver disease resulting from alcohol affects more than two million Americans and is one of the primary causes of illness and death. The liver frees the body of harmful substances, such as alcohol. While the liver breaks down alcohol, it produces toxins that can be even more dangerous than the alcohol consumed (“Beyond Hangovers: Understanding Alcohol's Impact Your Health” 13). “These by-products damage liver cells, promote inflammation, and weaken the body’s natural defenses. Eventually, these problems can disrupt the body’s metabolism and impair the function of other organs” (“Beyond Hangovers: Understanding Alcohol's Impact Your Health” 13). A condition called steatosis is the result of fat build up in the liver and is the earliest stage of alcoholic liver disease. This condition causes the liver difficulty breaking down alcohol, potentially resulting in alcoholic hepatitis. Fibrosis of the liver, which is also related to heavy drinking, causes scar tissue to build up in the liver. The alcohol alters chemicals that the liver needs to break down this scar tissue, causing liver dysfunctions. If one does not refrain from drinking during the condition of fibrosis, the scar tissue can build up and create another condition, called cirrhosis. Cirrhosis is deterioration of the liver resulting from heavy scarring, causing the liver to not be able to function properly. If cirrhosis becomes severe, a liver transplant may be the only solution (“Beyond Hangovers: Understanding Alcohol's Impact Your Health” 14). It is difficult to calculate when a person would develop cirrhosis, because an alcoholic could never develop the disease, but someone who social drinks could. It is also unknown why cirrhosis is more prevalent in women (...
In his Meditations on First Philosophy, Descartes states “I have a clear and distinct idea of myself, in as far as I am only a thinking and unextended thing, and as, on the other hand, I possess a distinct idea of body, in as far as it is only an extended and unthinking thing”. [1] The concept that the mind is an intangible, thinking entity while the body is a tangible entity not capable of thought is known as Cartesian Dualism. The purpose of this essay is to examine how Descartes tries to prove that the mind or soul is, in its essential nature, entirely distinct from the
In the Sixth Meditation, Descartes makes a point that there is a distinction between mind and body. It is in Meditation Two when Descartes believes he has shown the mind to be better known than the body. In Meditation Six, however, he goes on to claim that, as he knows his mind and knows clearly and distinctly that its essence consists purely of thought. Also, that bodies' essences consist purely of extension, and that he can conceive of his mind and body as existing separately. By the power of God, anything that can be clearly and distinctly conceived of as existing separately from something else can be created as existing separately. However, Descartes claims that the mind and body have been created separated without good reason. This point is not shown clearly, and further, although I can conceive of my own mind existing independently of my body, it does not necessarily exist as so.
Politics is the art or science of government or governing, especially the governing of a political entity, such as a nation, and the administration and control of its internal and external affairs. The Olympic Games is an event held every 4 years, which includes a variety of sport activities in which different countries compete against one another. “Sport is frequently a tool of diplomacy. By sending delegations of athletes abroad, states can establish a first basis for diplomatic relations or can more effectively maintain such relations” (Espy 3). One might think that politics and the Olympics have nothing to do with each other, but in fact they do have a lot in common. How did politics affect the Olympic Games in 1936, 1968 and 1972?
A very important theorist in the Classical School of thought is Cesare Beccarria. He was a modest man who wrote an essay called On Crimes and Punishment.
In short, I summarized Descartes position of the relationship of the mind and body. After that I discussed two objections to his argument which were related to the mind existing without the body and that the mind is not divisible while I discussed how Descartes might respond to these arguments. These arguments adequately show that Descartes argument for mind/body dualism is false.
Enzymes Enzymes are the sparks that start the essential chemical reactions our bodies need to live. They are necessary for digesting food, for stimulating the brain, for providing cellular energy, and for repairing all tissues, organs, and cells. There are three types of enzymes: metabolic enzymes, digestive enzymes, and food enzymes. Metabolic enzymes catalyse, or spark, the reactions within the cells. The body's organs, tissues and cells are run by metabolic enzymes.
...nclude, Ryle is correct in his challenge of Descartes’ Cartesian dualism, the mind and body are not two separate parts as dictated by dualist, rather the working of the mind are not distinct from the body. As a result, an observer can understand the mind of another through the actions of the body. It is the combination that makes up a human, human, as they are one and the same.