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Cellular respiration and photosynthesis biology
Cellular respiration and photosynthesis biology
Photosynthesis and cellular respiration holt biology
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Photosynthesis is how the world gets the majority of its oxygen; cellular respiration is what gives the cell the oxygen needed for food conversion and helps expel waste products from the cell. Without one of those processes, there would be no life on earth. In this essay, I will examine the process of oxygenic photosynthesis and explain the three steps of cellular respiration. I will compare and contrast the two, and finally, I will explain which process is more important.
Photosynthesis is the process by which solar energy is converted into food for the plant and oxygen for the world. There are two types of photosynthesis: oxygenic and anoxygenic
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Oxygenic photosynthesis is what helps the earth survive, as without it, the earth’s supply of oxygen would have depleted very quickly! Cellular respiration is the process by which stored energy is converted to adenosine triphosphate (ATP), a chemical food used by all cells, using catabolic reactions. Cellular respiration occurs in both plant and animal cells as well as eukaryotic and prokaryotic cells. It happens in three stages: glycolysis, the citric acid (or Krebs) cycle, and electron transport. In glycolysis, the energy within sugars is released. Glucose, which is a six-carbon sugar, is divided into two molecules of pyruvate, a three-carbon sugar. This process also makes two ATP molecules and two molecules of NADH, a protein that carries electrons. Glycolysis can work with or without oxygen. The second stage of cellular respiration is the Krebs cycle, which occurs in the mitochondria. In the beginning of the Krebs cycle, the pyruvate made in glycolysis is oxidized and turned into acetyl-CoA. Then, the two-carbon acetyl-CoA combines with oxaloacetate, a 4-carbon molecule, to form citrate, a 6-carbon molecule. Citrate then releases two of
gars. These are then split into two three-carbon sugar phosphates and then these are split into two pyruvate molecules. This results in four molecules of ATP being released. Therefore this process of respiration in cells makes more energy available for the cell to use by providing an initial two molecules of ATP.
Cellular respiration is a chemical reaction used to create energy for all cells. The chemical formula for cellular respiration is glucose(sugar)+Oxygen=Carbon Dioxide+Water+ATP(energy) or C6H12+6O2=6CO2+6H2O+ energy. So what it is is sugar and
Photosynthesis consists of the following equation: Sun light Carbon dioxide + Water = = == == ==> Glucose + Oxygen Chlorophyll Chlorophyll is a substance found in chloroplasts, found in the cells of leaves.
Photosynthesis is something that helps the plants to grow, but it is also very beneficial to us because of the fact that we need to breathe oxygen to maintain our functions of life. Plants produce an abundant supply of energy that is stored because they are what I would like to call savers/hoarders. Plants store the extra energy that they produce into different things such as potatoes, carrots, and other different types of food that we use to maintain our cellular respiration. Without photosynthesis it would be hard for animals to find fuel for cellular respiration and there would be no life as we know it due to photosynthesis being one of the key roles in life. After learning about cellular respiration, I have found out that both plants and animals use this when creating energy.
The process of photosynthesis is present in both prokaryotic and eukaryotic cells and is the process in which cells transform energy in the form of light from the sun into chemical energy in the form of organic compounds and gaseous oxygen (See Equation Below). In photosynthesis, water is oxidized to gaseous oxygen and carbon dioxide is reduced to glucose. Furthermore, photosynthesis is an anabolic process, or in other words is a metabolism that is associated with the construction of large molecules such as glucose. The process of photosynthesis occurs in two steps: light reactions and the Calvin cycle. The light reactions of photosynthesis take place in the thylakoid membrane and use the energy from the sun to produce ATP and NADPH2. The Calvin cycle takes place in the stroma of the chloroplast and consumes ATP and NADPH2 to reduce carbon dioxide to a sugar.
= = = [IMAGE][IMAGE]6CO2 + 6h20 light energy and chlorophyll C6H1206 + 6O2 Carbon dioxide + water converted into glucose and oxygen. Theory of photosynthesis Photosynthesis is a chemical reaction, which uses the energy from sunlight to convert carbon dioxide and water to oxygen.
Honors Biology Test Respiration 1.)Cellular Respiration is the process that creates energy. This mainly happens in the cells organelles. Cellular respiration can only function with either sugar, or some type of food molecule. Unlike plants, we can’t sue the sun’s energy to make food.
We depend on plants to obtain our oxygen. Plants produce glucose that assists in its living and growing and we contribute by releasing carbon dioxide. In order for us to live, we need the oxygen that plants produce by making glucose.
“Photosynthesis (literally, “synthesis from light”) is a metabolic process by which the energy of sunlight is captured and used to convert carbon dioxide (CO2) and water (H2O) into carbohydrates (which is represented as a six-carbon sugar, C6H12O6) and oxygen gas (O2)” (BioPortal, n.d., p. 190).
Monday, February the 26, 2019 Emily and I Janecia Hagood had our first teach at Harris County High School. The class we taught was Mrs. Moss first period honors biology class. Emily and I observed this class two times and planned a lesson plan based off that, and the topic we had to cover for our first teach. The topic was Photosynthesis and Cellular Respiration.
According to our text, Campbell Essential Biology with Physiology, 2010, pg. 78. 94. Cellular respiration is stated as “The aerobic harvesting of energy from food molecules; the energy-releasing chemical breakdown of food molecules, such as glucose, and the storage of potential energy in a form that cells can use to perform work; involves glycolysis, the citric acid cycle, the electron transport chain, and chemiosmosis”.
Photosynthesis is a process in which plants and other organisms convert the light energy from the sun or any other source into chemical energy that can be released to fuel an organism’s activities. During this reaction, carbon dioxide and water are converted into glucose and oxygen. This process takes place in leaf cells which contain chloroplasts and the reaction requires light energy from the sun, which is absorbed by a green substance called chlorophyll. The plants absorb the water through their roots from the earth and carbon dioxide through their leaves.
When humans consume plants, the carbohydrates, lipids, and proteins are broken down through two forms of cellular respiration. The two processes of cellular respiration displayed in humans are anaerobic and aerobic. The deciding process used depends on the presence of oxygen. Cellular respiration converts the material into a useable energy called ATP. ATP is the energy form that cells can use to perform their various functions, and it can also be stored for later use.
Photosynthesis and cellular respiration help sustain life on planet earth as both are metabolic processes in their own way. Photosynthesis is the process by which plants and other organisms use energy from the sun to form glucose from water and carbon dioxide. From there, glucose is then converted to ATP by way of cellular respiration. To convert nutrients that are biochemical energy into ATP, a process such as cellular respiration that has reactions needs to take shape in the cell of an organism, releasing waste products at the same time. For the continuous energy cycle that tolerates life on Earth as we know it Photosynthesis and Cellular respiration very essential. They have a few stages where energy and various connections occur within the eukaryotic cell. Cellular respiration takes place in the lysosome, an organelle that is found in the cytoplasm of eukaryotic cells. It uses enzymes to break down biomolecules including proteins, nucleic acids, carbohydrates, and lipids. Photosynthesis involves the chloroplasts, which contain pigments that absorb the sunlight and then transfigure them to sugars the plant can use. Those specific processes are crucial in how far and diversified evolution has
This beautiful thing that all living things should value is photosynthesis. Without photosynthesis, there wouldn’t be humans, animals, insects, and most importantly life! What is a Photosynthesis? According to scientists, photosynthesis is “the process by which green plants and other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.”