Essays on Cellular Respiration

Utilise different carbon sources as substrates for cellular respiration
Words • 5903
Pages • 24
The purpose of this investigation is to compare the ability of two different strains of yeast to respire, when using different sugars as respiration substrates. Considering the lengths that have been reached to develop varieties of yeast with greater suitability and effectiveness for very particular fermentation purposes, it seems reasonable to suppose that two different strains of the same species of yeast, selected for their different fermentation properties, have developed requirements that are not uniform. As a result of the…...
Anaerobic RespirationCellular Respiration
An investigation to find the lowest temperature that kills all the yeast cells
Words • 2041
Pages • 9
The aim of this investigation is to determine at what exact temperature all the yeast cells in a 10% suspension die with no interference from other factors which may affect the results. As shown in my appendix I am looking for when the decline part of the mixtures metabolic state is absolutely 0. (ref. appendix 1) Bakers yeast is a species of yeast formally known as Saccharomyces Cerevisiae. It is eukaryotic and its key metabolic process under normal conditions used…...
CellCellular Respiration
Cellular Respiration Assignment
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Pages • 6
- Cellular Respiration Assignment - 1. What two molecules are formed when a phosphate is removed from ATP? There are three phosphate groups in ATP molecule (Adenosine Triphosphate), when removing one phosphate molecule, ADP molecule is formed (Adenosine Diphosphate). 2. What is the function of ATP? Describe the molecule. The function of ATP is storing energy within a cell. ATP is adenosine triphosphate, C10H16N5O13P3, a high energy complex, giving the necessary power to push metabolistic reactions in the body. Its…...
Cellular Respiration
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Photosynthesis vs Respiration
Words • 325
Pages • 2
Photosynthesis is the process by which plants, some bacteria, and some protistans use the energy from sunlight to produce sugar, which cellular respiration converts into ATP, the "fuel" used by all living things. The conversion of unusable sunlight energy into usable chemical energy, is associated with the actions of the green pigment chlorophyll. Most of the time, the photosynthetic process uses water and releases the oxygen. Cellular respiration allows organisms to use (release) in the chemical bonds of glucose(C6H12O6). The…...
Cellular RespirationPhotosynthesis
What is Cellular Respiration and Photosynthesis?
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Pages • 2
Answer the following questions: Cellular respiration: What is cellular respiration and what are its three stages? Cellular respiration is a way cells store food and energy, a catabolic pathway for the production of adenosine triphosphate (ATP). The cellular respiration happens in both eukaryotic and prokaryotic cells. The three stages are Glycolysis, Citric cycle, and electron transport. What is the role of glycolysis? Include the reactants and the products. Where does it occur? Glycolysis splits the sugar that goes in to…...
Cellular RespirationPhotosynthesis
Cellular Respiration Through Alcoholic Fermentation
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Pages • 3
The experiment was conducted to determine the impact different yeast amounts had on yeast fermentation. It was hypothesized that the more yeast added the more CO2 would be produced. The carbon dioxide production was measured in the fermentation of yeast with solution of no yeast in test tube 1, 1mL yeast in test tube 2, and 3mL of yeast in test tube 3 over a period of twenty minutes. All of the yeast amounts produced CO2, but test tube 3…...
AlcoholCellular Respiration
The Oxygen- Carbon Cycle
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Pages • 2
The carbon-oxygen cycles are actually two independent cycles. However, both these cycles are interconnected as well as interdependent on each other to some extent. There are four processes involved in the completion of the carbon-oxygen cycle. Oxygen-carbon cycle processes are: * Photosynthesis Plants undergo photosynthesis that helps them produce energy and food for themselves. During photosynthesis, plants take in carbon dioxide (CO2) and absorb water (H2O) with the help of their roots. The chlorophyll present in the leaves and the…...
Cellular RespirationOxygenPhotosynthesisWater
Effect of pH on the Rate of Fermentation in Yeast
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Pages • 5
The experiment conducted regarding the effect of pH upon the rate of fermentation in yeasts was composed of two main parts or set of procedures. The first part of the experiment was focused upon the analysis of changes or shifts in pH induced by yeast samples that are placed in varying levels of pH. From the results gathered, it was rather apparent that there was not much change upon initial and final readings. However, it still provides insights regarding the…...
BiologyCellular RespirationScience
Cellular Respiration and Rigor Mortis
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Pages • 4
Cellular respiration is a metabolic process where the body uses organic molecules to produce energy. One of the greatest energy sources that our body uses is glucose. In cellular respiration glucose is broken down, and the energy from those bonds is used to create adenosine triphosphate (ATP). There are two types of respiration: aerobic and anaerobic. In aerobic respiration there are 3 main steps: Glycolysis, Krebs Cycle (Citric Acid Cycle), and Oxidative Phosphorylation. In anaerobic respiration you can have alcohol…...
Anaerobic RespirationCellular Respiration
Cellular Respiration and Photosynthesis
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Pages • 3
Photosynthesis and respiration are both processes that are necessary for the survival of organisms. However, in numerous ways these two processes are very diverse as they are responsible for distinct necessities. Therefore they both have similarities and differences. One major difference between the two is that photosynthesis takes place completely in plants while respiration occurs equally in plants and animals. Nevertheless to understand Photosynthesis and respiration, we need to understand what is photosynthesis and cellular respiration and examine each of…...
Cellular RespirationEnergyPhotosynthesis
Photosynthesis and Cellular Respiration
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Pages • 5
Paper Type:Synthesis essays
Cells of all organisms are capable in acquiring the energy necessary to fuel chemical reactions for growth, repair, survival, and reproduction. Photosynthesis & cellular respiration are the main pathways of energy flow in living things. Photosynthesis is a process by which plants and some other organisms convert, light energy from the sun, CO2 from the air & H2O from the earth, into chemical energy stored in molecules like glucose. Cellular respiration is a process in which O2 is delivered to…...
Cellular RespirationLight EnergyPhotosynthesis And Cellular Respiration
Yeast Lab Report
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Pages • 5
Are there any differences in the rate of metabolism of a dried yeast culture with differing carbohydrate sources? In the current practical that was undertaken the growth rate of yeast (S. cerevisiae) with differing carbohydrates sources : Glucose (C6H12O6), Fructose (C6H12O6), Lactose (C12H22O11), Xylitol “(CHOH)3(CH2OH)2” and Water (H2O) as a Control were observed. “ Yeast are single-celled fungi which consist of more than one thousand different species which have been identified. The most commonly used yeast is Saccharomyces Cerevisiae which…...
Cellular RespirationChemistryScience
Cell respiration Lab report
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Pages • 8
Purpose: The purpose of this lab is to measure the consumption of oxygen by respiring seeds and to compare respiration rate at two different temperatures. Background Research: Cellular respiration is the process of oxidizing food molecules, like glucose, to carbon dioxide and water. C6H12O6 + 6O2 + 6H2O → 12H2O + 6 CO2 The energy in glucose is used to produce ATP. Cells use ATP to supply their energy needs. Cellular respiration is therefore a process in which the energy…...
CellCellular Respiration
The effects of exercise on the cardiovascular and respiratory system
Words • 1902
Pages • 8
The objective of this report is to critically explain the physiological effects of exercise on the human respiratory system and cardiovascular system. To begin with, I will explain the two systems, their specific functions and how they inter-relate. I will then go on to analyse the effects of exercise on the two systems by looking at the way in which the body deals with an increased workload, and any health issues that may affect this. Cardiovascular system This system is…...
Cardiovascular SystemCellular RespirationExercise
The Effect of the Nature of Substrate on Cellular respiration of yeast
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Pages • 8
Abstract The experiment aims to observe if simpler substrates makes the rate of cellular respiration faster. Using yeast, smith fermentation tubes and different substrates namely, starch, lactose, sucrose, glucose and fructose, which are from different kinds of carbohydrates, ranging from the simplest sugars glucose and fructose to the polysaccharide starch and water as the control, the hypothesis was tested. With the span of thirty minutes with five-minute intervals, the height of carbon dioxide trapped in the tube was measured. The…...
Cellular RespirationNature
Differences and Similarities between Respiration and Photosynthesis
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Pages • 1
Cellular RespirationPhotosynthesis OrganellesMitochondriaChloroplast Organelle StructuresThe double-membraned mitochondrion can be loosely described as a large wrinkled bag packed inside of a smaller, unwrinkled bag. The two membranes create distinct compartments within the organelle, and are themselves very different in structure and in function.Two membranes contain and protect the inner parts of the chloroplast. The stroma is an area inside of the chloroplast where reactions occur and starches (sugars) are created. One thylakoid stack is called a granum. The thylakoids have chlorophyll…...
Cellular RespirationPhotosynthesis
Understanding human anatomy and physiology
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Pages • 9
Metabolism refers to the chemical reaction collections that take place in the cells of the body. The process of metabolism converts the body nutrients derived from food ingested to produce essential energy requirements for the body. The body requires energy for muscular activity and movements as well as blood circulation, breathing, making new cells, lymph, and tissue fluid transmission of nerve impulses and repair of body tissues among other roles. The control of metabolic chemical reactions in the body is…...
Cardiovascular SystemCellular RespirationHumanHuman AnatomyHuman Digestive SystemHuman Physiology
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What is Cellular Respiration and Photosynthesis?
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