Nobody downloaded yet

Cellular Respiration and Photosynthesis - Essay Example

Comments (0) Cite this document
Cellular Respiration and Photosynthesis- Important Concepts, Common Misconceptions, and Learning Activities: A Review One of the fundamental processes that sustain life is the process of capturing energy from the environment. Here on Earth, the main source of energy is the sun…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER95.7% of users find it useful
Cellular Respiration and Photosynthesis
Read TextPreview

Extract of sample "Cellular Respiration and Photosynthesis"

Download file to see previous pages All organisms that are doing photosynthesis help all living organisms who depend on them for food and oxygen. In the chemical reactions in photosynthesis, carbon dioxide and water combine with the help of sunlight to produce glucose (C6H1206 ). The chemical equation of this chemical reaction is 6CO2 + 6H2O + light = C6H12O6 + 6O2. Carbon dioxide is absorbed and oxygen is released. Photosynthesis occurs in the chloroplasts of photosynthesizers. There are two stages taking place in photosynthesis. These stages are the light dependent reaction or light cycle and the light independent cycle or calvin cycle. The main function of photosynthesis is to produce food and capture energy. There are also processes involved in photosynthesis. These are the production of organic carbon, glucose and starch, form inorganic carbon, carbon dioxide, with the use of ATP and NADPH produced in the light dependent reaction. This process can be seen in plants, protista or algae and some bacteria in the presence of chlorophyll. Light is absolutely essential to produce this reaction. On the other hand, cellular respiration is the biochemical pathway wherein cells produce energy for the chemical bonds of food molecules in order to produce energy needed to sustain life. Cellular respiration should be done by all living cells whether it is aerobic respiration which is in the presence of oxygen or anaerobic respiration. In this process, glucose is broken down into water, carbon dioxide and energy. This breakdown of food occurs in the mitochondria which releases energy. There are 4 stages involved in cellular respiration, Glycolysis, pyruvate oxidation, Krebs cycle, and oxidative phosphorylation. Like photosynthesis, ATP is also produces in this process, occurs in all living organisms. Unlike in photosynthesis wherein sunlight is needed, cellular respiration happens all the time and no catalyst is required. Oxygen is absorbed through this process and carbon dioxide is released. In addition to this processes, energy should also be understood. So, what is energy? It is the ability to do work and make things move. According to the Law of Thermodynamics, energy can be changed but is not created or destroyed. Due the inefficiency of energy transformation, energy is lost when we do activities. This can be explained by second law of thermodynamics which says that energy is converted to heat. This means that molecules that provide chemical energy should be replaced whenever our bodies use chemical energy in cellular processes. ATP or adenosine triphosphate is also needed to be understood. ATP provides the energy needed for all biological processes. ATP is produced in the process of cellular respiration. ATP is constantly produced by our cells and consumes energy from organic molecules like glucose. When ATP is broken down, energy is released. This is the energy used in synthesizing organic molecule, pumping ions through the cell membrane and muscle contraction. This explains how energy from food is used. This process starts when large organic food molecules like starch and triglycerides are broken down into small biological molecules such as glucose and fatty acids. These fatty acids travels in the blood and functions as an input for cellular respiration which transfers energy into organic particles such as glucose to energy in ATP. Afterwards, ATP is used to provide energy for cellular ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
(“Cellular Respiration and Photosynthesis Essay Example | Topics and Well Written Essays - 750 words”, n.d.)
Retrieved from
(Cellular Respiration and Photosynthesis Essay Example | Topics and Well Written Essays - 750 Words)
“Cellular Respiration and Photosynthesis Essay Example | Topics and Well Written Essays - 750 Words”, n.d.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document

CHECK THESE SAMPLES OF Cellular Respiration and Photosynthesis

Cellular respiration and photosynthesis

.../parts is done by a biochemical pump called proton pump. ATP is the chief origin of cellular energy, which is obtained from adenosine diphosphate through cellular respiration & photosynthesis. The hydrolysis of ATP is quickened by a class of enzyme called ATPase. Formation of ATP from ADP and a phosphate molecule is a biochemical process that captivates energy, i.e. endergonic reaction. Due to the traversing of proton across membrane, and catalytic effect of ATPase; subsequent amount of energy is released. The released energy is used for the conversion of ADP to ATP. Biochemical energy is mandatory to execute any activity ranging from cellular to macro...
1 Pages(250 words)Assignment

Cellular Respiration and Fermentation

...the energy from the pyruvic acid molecules was broken down at the Krebs cycle. Electron transport and oxidative phosphorylation involved the organization of a proton gradient across the NADH membrane generated at the Krebs cycle. ATP synthesis then took place through the ATP synthesis enzyme – in creating the phosporylation of ADP. The electrons were lastly moved to oxygen, where water was produced (Berg et al. 54). Conclusion Cellular respiration is an important process, as it is the process that leads to the formation of ethanol, which is an important ingredient in the manufacturing of alcohol. The process is also necessary in baking, as it allows for the raising of bread, through the generation of...
3 Pages(750 words)Essay

Cellular respiration and fermentation

...Cellular Respiration and Fermentation Table of Contents Abstract 2 Paper Proper 2 Introduction 2 Materials and Methods 2 Results 4 Conclusions 4 References 8 Abstract The two-part experiment involved tracking fermentation and respiration processes making use of carbon dioxide markers in gas height and in the production of carbonic acid respectively (ASPB Foundation n.d.; Nuffield Foundation 2013; The Regents of the University of California 2011).. Paper Proper Introduction The goal of the experiment is to investigate respiration and fermentation reactions. Studying fermentation and respiration as done in this experiment has implications for industry, as fermentation reactions, for one, impact the way we produce an important... ...
5 Pages(1250 words)Lab Report

Photosynthesis and Cellular Respiration Sumanta Sanyal d: 02/09/07 A Comparison: Photosynthesis and Cellular Respiration Introduction: The first part of thispaper compares and contrasts two plant processes - photosynthesis and cellular respiration. While it is acknowledged that the former process precedes the latter one by a few billion years the two processes do have complementary functions. While photosynthesis uses solar energy directly and stores it within chemical bonds cellular respiration releases this stored energy and makes it available to the plant when it needs the energy. That...
5 Pages(1250 words)Essay

Cellular Respiration

...Cellular respiration After three steps during respiration, a molecule of glucose and 6 molecules of oxygen are converted to 6 molecules of carbon dioxide, water and energy (Rich, PR, 2003) as shown below. C6H12O6 + 6O2 ----- 6CO2 + 6H2O + 36 ATP However, the process of generating energy during cellular respiration is not as simple as the equation looks. Cellular respiration can be defined as a process of oxidizing fuel molecules such as glucose to carbon dioxide and water. The energy released during this process is held in the ATP molecules for all the energy consuming activities of the cell. The fuel molecules used by the cells include glucose, amino acids and fatty acids and the common electron acceptor or the oxidizing agent... more ATP...
9 Pages(2250 words)Essay

Cellular Respiration and Fermentation

...of Paper: Cellular Respiration and Fermentation Jason Due 15 October Cellular Respiration and Fermentation Cellular respiration usually allows living organisms to use energy stored in the chemical bonds of glucose (C6H12O6). A cell always uses adenosine triphosphate (ATP) to supply their energy needs and so cellular respiration is a process in which energy in the glucose is transferred to ATP (Campebell 158). (al) During respiration glucose is oxidized releasing energy and oxygen is reduced to form water. The carbon atom of the sugar molecule is released as CO2. The complete breakdown...
3 Pages(750 words)Essay

Cellular respiration and fermentation

...Cellular Respiration and Fermentation Table of Contents I. 3 II. Narrative 3 Introduction 3 2. Materials and Methods 3 3. Results 4 4. Conclusions 5 References 8 I. Abstract The two-part experiment involved tracking fermentation and respiration processes making use of carbon dioxide markers in gas height and in the production of carbonic acid respectively (ASPB Foundation n.d.; Nuffield Foundation 2013; The Regents of the University of California 2011).. II. Narrative 1. Introduction In the first part, fermentation is measured using gas height as proxy for carbon dioxide measure and the rate of reaction. In the second part, respiration is measured in terms of carbonic...
4 Pages(1000 words)Lab Report

Respiration and Photosynthesis

...Respiration and Photosynthesis Respiration and photosynthesis are complement to each other; while photosynthesis utilises light energy, carbon IV oxide and water to produce glucose and oxygen, respiration uses the produced oxygen to break down glucose into carbon IV oxide and water. In the environment, green plants by the process of photosynthesis release carbon IV oxide which is taken up by other living organisms for respiration which in turn release oxygen required for photosynthesis (Photosynthesis vs. Respiration 2012). Respiration...
3 Pages(750 words)Essay

Respiration and Photosynthesis Cycle

...Respiration and Photosynthesis Processes al Affiliation Part ATP as the energy currency of the cell Respiration refers to the process in which living organisms inhale and exhale desirable gases (Jerome, 2008). The two forms of respiration include aerobic respiration and anaerobic respiration. Aerobic respiration uses oxygen while anaerobic respiration takes place in the absence of oxygen. In both aerobic and anaerobic respirations, the process takes place in the cytoplasm and mitochondria cells. In addition, both aerobic and anaerobic forms of respiration result to...
1 Pages(250 words)Essay

Nacl and cellular respiration

... Why sodium chloride (NaCl) has no effect on cellular respiration Cellular respiration is the process by which food molecules like glucose are being oxidized to produce carbon dioxide and molecules of water. The energy released during the breakdown process is in the form of ATP, which is used in cellular activities. The process occurs in all organisms (Meldrum 22). C6H12O6 + 6O2 + 6H2O → 12H2O + 6 CO2 NaCl has no effect on the process of cellular respiration because of the following reasons; NaCl has no effect on temperature availability. Respiration rate is high in warm temperatures than in cold environment regardless of salt availability. This is because the effect of temperature is controlled by the activity of enzymes. Warm... from...
1 Pages(250 words)Coursework
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.

Let us find you another Essay on topic Cellular Respiration and Photosynthesis for FREE!

Contact Us