Cellular respiration yeast fermentation lab

This means that yeast can use sugars to undergo aerobic respiration to produce water and CO2 gas, or it can undergo fermentation in the absence of oxygen to ...

Millicom International Cellular News: This is the News-site for the company Millicom International Cellular on Markets Insider Indices Commodities Currencies Stocks Yeast and one sugar in each test tube plus a distilled water control. My Conclusion: Based on your data, which of the following shows the correct order from most to least amount of fermentation in 20 minutes? Glucose > fructose > sucrose > starch > water. Collected Lab Data. Tube 1 (Fructose) Tube 2 (Glucose) Tube 3 (Sucrose) Tube 4 (Starch) Fermentation Title In this lab we are going to experiment if yeast cells go through fermentation when placed in tubes without oxygen. Abstract Fermentation is the anaerobic process of reducing pyruvate to generate ATP. ... In the control flask (open flask) the yeast cells will undergo cellular respiration and will not undergo fermentation ...Mizuho Securities analyst Graig Suvannavejh maintained a Buy rating on Intra-Cellular Therapies (ITCI – Research Report) today and set a p... Mizuho Securities analyst Graig ...Progress to Step 2 while the yeast activates. Step 2: Prepare 5% solutions of glucose, sucrose, and sugar substitute. Make 100 ml of each. Describe the steps for each in your lab notebook. List the brand and ingredients in the sugar substitute. Step 3: Identify four 50 ml graduated cylinders that will stand upside down in a petri dish, without ...SPHS Biology Yeast cellular respiration lab. Each flask has a different amount of glucose (sugar). Flask A= No sugar, Flask B= 1g sugar, Flask C= 5g sugar. W...Please find the answers below: Answer 1: Hypothesis: The nature of gaseous product formed after yeast fermentation depends upon the nature of sugar component of the growth medium. Reason: Some sugars are more preferred as a so …. Lab 9 Cellular Respiration Table 1: Yeast Fermentation Data Initial Gas Height Imml Final Gas Height (mm) Net ...SPHS Biology Yeast cellular respiration lab. Each flask has a different amount of glucose (sugar). Flask A= No sugar, Flask B= 1g sugar, Flask C= 5g sugar. W...

Microbiology Lab Cellular Respiration and Yeast Fermentation Lab. Teacher 20 terms. Theater007. Preview. Cellular Respiration Lab- Lab Practical #3. 30 terms. Paytton3. Preview. Microbio practical #2. 28 terms. hailey_floberg. Preview. Microbiology Lectures 5/6 . 60 terms. CallieStern. Preview. Microbial Diversity.The yeast simply switches from aerobic respiration (requiring oxygen) to anaerobic respiration (not requiring oxygen) and converts its food without oxygen in a process known as fermentation. Due to the absence of …Description: This is a two-day laboratory exercise in which the students will determine the effect of different concentrations of sugar on the respiration and fermentation rates of …Study with Quizlet and memorize flashcards containing terms like (Lab 12) During the yeast fermentation lab, why did glucose show a higher rate of fermentation than starch? A) Starch is a disaccharide. B) Starch is a polysaccharide. C) Glucose is a polysaccharide. D) Glucose is a disaccharide., (Lab 12) The cellular respiration pathway that occurs in the …when an animal exercises hard) and alcoholic fermentation (e.g. by yeast to make wine and beer). Fermentation has two disadvantages compared to aerobic respiration: (1) Fermentation produces much less ATP than aerobic respiration, and (2) fermentation produces a toxic byproduct (either lactate, which becomes lactic acid, or alcohol). … Lab 6 Respiration and Fementation 8.2020 PDF. Lab 6. Cellular Respiration Fermentation. Overview. During this lab you will investigate how glucose concentration affects the rate of fermentation in yeast, a single-celled eukaryote which is capable of alcoholic fermentation. You will also investigate the presence or absence of facultative ... This quick and easy lesson is perfect for life science or biology students learning about cellular respiration or fermentation. Please Note: This lab is also part of my Full-Year Biology Curriculum and the Biology Unit 4: Cellular Energy! This inquiry lab involves very little preparation. Because the fermentation process takes 1/2 to 1 hour, it ...This lab explores the concepts of Cellular Respiration and Fermentation in yeast. Yeast do Alcoholic Fermentation and one of the byproducts is Carbon Dioxide. When you bake bread with yeast, Carbon dioxide is produced, which forms bubbles in the dough, causing the dough to rise.

Problem: Yeasts undergo aerobic cell respiration if there is sufficient oxygen and releases carbon dioxide as a waste product. Yeasts, like any other cells, have an optimum temperature at which they work most efficiently, including the process of cell respiration. ... Inflate a Balloon with Yeast Fermentation Experiment: Lab Explained. 30°C ...Virtual Labs are now live for your Biology course. Attend this webinar to find out how to access and create Virtual Labs as we are moving to online ... View Virtual Lab - Cellular Respiration - Yeast Fermentation.pdf from BIOL 1106 at Texas State Technical College, Harlingen. 10/10/2020 Laboratory Simulation Student: Senovia My Hypothesis: Water > Cellular respiration is the process that cells use to transfer energy from the organic molecules in food to ATP (Adenosine Tri-Phosphate). Glucose, CO2, and yeast (used as a catalyst in this experiment) are a few of the many vital components that contribute to cellular respiration. Sugar/ glucose is an important carbohydrate that can be made ...Cellular Respiration and Fermentation- Lab 5. Flashcards; Learn; Test; Match; Q-Chat; Get a hint. ... Glucose + yeast produces CO2 and the phenol red turns yellow (because it is in acidic condition therefore from oxidized state to reduced state) Water + yeast stays red because it is control

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Complete the chart for CO2 production and glucose concentration and answer all questions. rs Scanned with 09/12/17 CamScanner Results: Fermentation in Yeast (to be handed in) Student Name Lab Partner(s) Data Summary Sheet Date Experiment One: Glucose Fermentation CO Production and Glucose Utilization over Time Table One Actual Clock Time 7. 30 ... Part 1: FERMENTATION. To produce ATP from glucose, whether by fermentation or cellular respiration, cells must first partially break it down by glycolysis (“sugar” “separation”). The enzymes involved in glycolysis are located in the cell cytoplasm and sequentially break down each 6-carbon molecule of glucose to two 3-carbon molecules of ...Yeast Fermentation Lab - Free download as Word Doc (.doc), PDF File (.pdf), Text File (.txt) or read online for free. Yeast are tiny single-celled (unicellular) fungi. They rely on sugar found in their environment to provide them with energy. Certain yeast feed on a variety of natural sources of sugar such as fruits, nectar from plants, and molasses from … Cellular Respiration • Yeast Fermentation.pdf - Laboratory... Student: Joseph My Hypothesis: Sucrose > fructose > glucose > starch > water My Strategy: To determine the rate of fermentation, I will measure the height of the CO bubble produced. My Method: Yeast and one sugar in each test tube plus a distilled water control. Note that fermentation is less efficient than aerobic respiration. This lab will explore both aerobic and anaerobic respiration in various organisms. Part 1- Anaerobic Respiration (fermentation) One form of anaerobic respiration well known by most involves the use of yeast in the production of bread, beer, and other products.This part of the lab investigates aerobic cellular respiration by Saccharomyces cerevisiae, also referred to as “baker’s yeast” and “brewer’s yeast.” Yeast is a unicellular fungus that can convert glucose into carbon dioxide and ATP when oxygen is present. ... PART 3: ALCOHOLIC FERMENTATION IN YEAST. This part of the lab ...

Overview . During this lab you will investigate how glucose concentration affects the rate of fermentation in yeast, a single-celled eukaryote which is capable of alcoholic fermentation. You will also investigate the presence or absence of facultative anaerobic bacteria in your water samples.PRE-LAB QUESTIONS 1. Why is cellular respiration necessary for living organisms? Because it produces energy that is necessary for the functioning of the body. Why is fermentation less effective than respiration? Because fermentation does not make glucose oxidize because of the lack of oxygen involved in the process. What is the …View Virtual Lab - Cellular Respiration - Yeast Fermentation.pdf from BIOL 1106 at Texas State Technical College, Harlingen. 10/10/2020 Laboratory Simulation Student: Senovia My Hypothesis: Water >BIO 101 Lab 07: Measuring Cellular Respiration and Fermentation Notification: If you have a disability that makes it difficult to complete this lab, please contact your instructor. Please provide your instructor a copy of the Memorandum of Accommodation (MOA) from NVCC Disability Support Services. Alcohol, CO2, Study with Quizlet and memorize flashcards containing terms like In cellular respiration, carbon dioxide is formed from the oxidation of which of the following?, Sports physiologists at an Olympic training center wanted to monitor athletes to determine at what point their muscles were functioning anaerobically. This means that yeast can use sugars to undergo aerobic respiration to produce water and CO2 gas, or it can undergo fermentation in the absence of oxygen to ... Cellular Respiration: Alcoholic Fermentation. Introduction Some fungi, as well as saccharomyces cerevisiae, also known as “baker’s yeast,” shift from cellular respiration to alcoholic fermentation when the amount of oxygen is diminished. The starting compounds of fermentation derive from starch which is converted to glucose and fructose. Yeast reproduce by budding. In budding, a small bud from the parent cell increases in size until it buds off the parent cell. Budding yeast. Yeast can produce ATP via aerobic energy production (cellular respiration) or fermentation depending upon environmental conditions. In the presence of oxygen, yeast produce ATP via aerobic energy production. Introduction. Yeasts are single-celled fungi. The species called Saccharomyces cerevisiae is commonly called Baker’s or Brewer’s yeast. Like other eukaryotes with mitochondria, yeast can use oxygen to generate ATP in the process of oxidative phosphorylation.These yeast are facultative aerobes which means they can …Cellular Respiration and Fermentation- Lab 5. What is respiration? Process where living organisms get energy (ATP) from food.NAD + + 2 e − + 2 H + → NADH + H +. FAD + 2 e − + 2 H + → FADH 2. To see how a glucose molecule is converted into carbon dioxide and how its energy is harvested as ATP and NADH / FADH 2 in one of your body's cells, let’s walk step by step through the four stages of cellular respiration. Glycolysis. In glycolysis, glucose—a six ...

first step of procedure. activate yeast with water. what were the mixtures with yeast. yeast only, yeast and starch, yeast and sucrose, yeast and glucose. within the mixtures of yeast, what is the control. yeast only, no sugar. how many minutes do you wait for the yeast to activate. 5 minutes.

Lab 7- CELLULAR RESPIRATION • YEAST FERMENTATION. -In plants and yeasts (fungi), the process of fermentation produces ethanol (alcohol) and carbon dioxide. This is called alcoholic fermentation. -In bacteria and animal cells, the products of glycolysis undergo fermentation in the cytoplasm to produce lactic acid when the oxygen level is low. The fermentation process is at the heart of some of the most important biotechnological processes. This is demonstrated by the production of breads and alcoholic beverages where the fermenting capabilities of yeasts are exploited to produce ethanol and CO 2.These conditions lead to cells capable of increased ethanol and CO 2 production …Nutritional yeast—known as “nooch” around my studio apartment—is best known for the savory, cheese-adjacent flavor it brings to vegetarian and vegan dishes, as well as popcorn. But...lab cellular respiration questions why is cellular respiration necessary for living organisms? cellular respiration creates atp. almost all the processes which. ... EXPERIMENT 1: FERMENTATION BY YEAST Data Tables. Table 1: Yeast Fermentation Data. Tube Initial Gas Height (mm) Final Gas Height (mm) Net Change. 1 7 9 2 2 7 8 1. … This gas is carbon dioxide, one of the products of fermentation. Figure 9.1: Glycolysis is the first step of both aerobic respiration and fermentation. Aerobic respiration only produces carbon dioxide as a toxic byproduct, but fermentation also produces alcohol or lactate. Safety Precautions. Use care when using glassware. Select all of the following that are true statements about fermentation. Respirometers were set up that contained yeast and 2% glucose solution. Each respirometer was placed at a different temperature. The height of the bubble contained in the respirometer was measured every 5 minutes for 20 minutes.What was the Set Up of the Plant Respirometer Experiment? 1. Seed take in oxygen, releasing carbon dioxide and lowering the pH. 2. Add water, the CO2 travels through straw to phenol red. 3. The CO2 mixes with H2O changing the phenol red to yellow. 4. Respiration occurs.

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Cellular Energetics I - Cellular Respiration & Fermentation. Fermentation Overview. Exercise 1 - Examination of Yeast Cells; Exercise 2 - Carbon Dioxide ...Some of those gut-healthy "fermented" foods aren't even fermented. Fermented foods are often among the top nutritional suggestions for gut health, since they contain probiotic bact...Mizuho Securities analyst Graig Suvannavejh maintained a Buy rating on Intra-Cellular Therapies (ITCI – Research Report) today and set a p... Mizuho Securities analyst Graig ...NAD + + 2 e − + 2 H + → NADH + H +. FAD + 2 e − + 2 H + → FADH 2. To see how a glucose molecule is converted into carbon dioxide and how its energy is harvested as ATP and NADH / FADH 2 in one of your body's cells, let’s walk step by step through the four stages of cellular respiration. Glycolysis. In glycolysis, glucose—a six ...The equation of anaerobic respiration in yeast-. Glucose → Ethanol + Carbon Dioxide + Energy. C6H12O6→ C2H5OH + CO2+ energy (2ATP) The equation states that in one cycle of anaerobic respiration one Glucose (6-carbon molecule) molecule breaks and produce small amount of energy generally 2 molecules of ATP or adenosine …During cellular respiration, glucose breaks down into carbon dioxide and water. This process releases a store of energy, or ATP, that cells can use for their needs.Fig. 3 shows the yeast fermentation curves for 10.0 g and 20.0 g of glucose. It can be seen that the initial rate of CO 2 mass loss is the same for the 10.0 and 20.0 g samples. Of course the total amount of CO 2 given off by the 20.0 g sample is twice as much as that for the 10.0 g sample as is expected.Exercise and Aerobic Respiration - Aerobic respiration is the slowest way your body produces energy during exercise, but it's also the longest lasting. Learn how aerobic respiratio...IN the yeast Saccharomyces cerevisiae, glucose is the preferred carbon source and fermentation is the major pathway for energy production, even under aerobic conditions. However, when glucose becomes scarce, ethanol produced during fermentation is used as a carbon source, a process requiring a shift to a respiration mode.LAB 11: . Fermentation. I. Objectives: Upon completion of this topic you should be able to describe: the role of glucose and ATP in the powering of cellular reactions. the different types of fermentation in metabolism. the products of fermentation in yeast . how different sugars, temperature, and pH affect the rate of fermentation. II. ….

LAB 6. Date: 9/16/ Title: Cellular Respiration- Yeast Fermentation. Purpose: In this experiment, we will test how efficiently yeast ferments different sugars of glucose, …LAB 12: Cellular Respiration I. Objectives: Upon completion of this topic you should know: o The role of glucose and ATP in the powering of cellular reactions o How germination affects aerobic respiration in bean seeds o How temperature affects aerobic respiration bean seeds o How aerobic respiration differs from fermentation II.Step 1: Preparation and observation of wet mount: Slice a layer from an onion with the single-edge razor blade and grab the edge of the layer with the forceps peeling back a thin transparent layer of epidermal tissue. The thickness of the layer is one or a few cells which will allow you to visualize clearly the inside of the cells.Several approaches to metabolizing energy exist at the cellular/biochemical level. Organisms can metabolize energy by aerobic respiration, anaerobic respiration ...By adding cereal, yeast, and warm water to a zipper bag, your students can see fermentation at work- all the way up to the point at which the bag pops! Although I don’t use formal lab reports often, there are a lot of variables that can be changed in this lab if you’d like to make it a true student-directed lab. The type of cereal, amount ... 16 Multiple choice questions. T/F: During aerobic respiration cellular respiration produces carbon dioxide. T/F: Fermentation requires the presence of oxygen in order to fully break down glucose into carbon dioxide and water. During cellular respiration there are two reactants, [A], and [B] which produce the products [C], [D], and ATP. Lab 6 Respiration and Fementation 8.2020 PDF. Lab 6. Cellular Respiration Fermentation. Overview. During this lab you will investigate how glucose concentration affects the rate of fermentation in yeast, a single-celled eukaryote which is capable of alcoholic fermentation. You will also investigate the presence or absence of facultative ... About. Transcript. Cellular respiration is the process by which cells derive energy from glucose. The chemical reaction for cellular respiration involves glucose and oxygen as inputs, and produces carbon dioxide, water, and energy (ATP) as outputs. There are three stages to cellular respiration: glycolysis, the Krebs cycle, and the electron ... Alcoholic fermentation is a common reaction carried out in a wide range of settings from homes for baking bread to factories for brewing beer. It is defined as the conversion of glucose into energy, ethanol, and CO 2 . It works by starting with glycolysis, which is the first metabolic pathway involved in cellular respiration.This cell respiration and fermentation lab is sure to be a hit in your secondary science classroom! This lab includes an editable version, digital version, full lesson plan, rubric, and more! Students will use balloons, yeast, sugar, and water to compare the rate of alcoholic fermentation in room temperature and warm conditions. ⭐ Topics ⭐ ... Cellular respiration yeast fermentation lab, Microbiology Lab Cellular Respiration and Yeast Fermentation Lab Flashcards | Quizlet. 5.0 (7 reviews) Key Concepts-1. Click the card to flip 👆. In plants and yeasts (fungi), the …, Medicine Matters Sharing successes, challenges and daily happenings in the Department of Medicine ARTICLE: Cellular and molecular pathobiology of heart failure with preserved eject..., Lab 6 Respiration and Fementation 8.2020 PDF. Lab 6. Cellular Respiration Fermentation. Overview. During this lab you will investigate how glucose concentration affects the rate of fermentation in yeast, a single-celled eukaryote which is capable of alcoholic fermentation. You will also investigate the presence or absence of facultative ... , Lab 04: Respiration & Fermentation Lab Activity 1: Table 1 Temperature Conditions Bean Mass (g) 0 m (mL) 5 min. (mL) 10 min. ... yeast employs fermentation to make CO 2. 4. What was the concentration of azide in the yeast culture? ... rapid rate of cellular respiration, sucrose sugar would be the greatest choice for, This part of the lab investigates aerobic cellular respiration by Saccharomyces cerevisiae, also referred to as “baker’s yeast” and “brewer’s yeast.” Yeast is a unicellular fungus that can convert glucose into carbon dioxide and ATP when oxygen is present. ... PART 3: ALCOHOLIC FERMENTATION IN YEAST. This part of the lab ..., Lab 6: Cellular Respiration: Fermentation of Different Sugars by Yeast Cells. Instructions: Answer the questions below based on Experiments 1. Remember: You are using Kelvin not Fahrenheit! Experiment 6 - The Effect of Temperature on Yeast Fermentation Activity. Table 6.1: Effect of temperature on fermentation activity. Tube 5% Sugar Solution, Fermentation Labs. Yeast fermentation lab that is designed for high school, middle school, and elementary school life science teachers. An easy to perform yeast fermentation lab is where students experiment on baker yeast and sugar. Anaerobic respiration quiz questions and fermentation worksheets are also included., About. Transcript. Cellular respiration is the process by which cells derive energy from glucose. The chemical reaction for cellular respiration involves glucose and oxygen as inputs, and …, This lab includes an editable version, digital version, full lesson plan, rubric, and more! Students will use balloons, yeast, sugar, and water to compare the rate of alcoholic fermentation in room temperature and warm conditions. Topics – Cellular Respiration – Anaerobic Respiration – Yeast – Alcoholic Fermentation – Products and ..., May 15, 2017 ... yeast cells facilitate ethanol fermentation. This experiment was performed by combining 2g of yeast with 25mL of sucrose solutions. with ..., first step of procedure. activate yeast with water. what were the mixtures with yeast. yeast only, yeast and starch, yeast and sucrose, yeast and glucose. within the mixtures of yeast, what is the control. yeast only, no sugar. how many minutes do you wait for the yeast to activate. 5 minutes., View Virtual Lab - Cellular Respiration - Yeast Fermentation.pdf from BIOL 1106 at Texas State Technical College, Harlingen. 10/10/2020 Laboratory Simulation Student: Senovia My Hypothesis: Water > , The formula for the yeast fermentation reaction is: C 6H 12O 6 = 2CH 3 CH 2 OH + 2CO 2 + energy glucose = ethyl + carbon alcohol dioxide For the yeast cell, this chemical reaction is necessary to produce the energy for life. The alcohol and the carbon dioxide are waste products produced by the yeast. It is, ... yeast cells by boosting the supply of Krebs cycle‐derived amino acids. Keywords: arginine, cellular metabolism, fermentation, respiration, S. pombe. Subject ..., Lab 9: Fermentation in Yeast. Comparing Rates of Fermentation in Yeast. Dependence of Fermentation on Temperature. Key Terms. Lab 10: Plant Pigments. ... Cellular Respiration Learning Objectives. After completing the lab, the student will be able to: Determine the site of respiration in the cell., Overview . During this lab you will investigate how glucose concentration affects the rate of fermentation in yeast, a single-celled eukaryote which is capable of alcoholic …, In this lab, we will observe yeast cells performing cellular respiration. Yeast are facultative anaerobes. This means that if oxygen is present, they will use cellular respiration. However, if there is no oxygen present in the environment, they will use alcohol fermentation instead., In which experiment did anaerobic cellular respiration take place? yeast. What are the reactants of anaerobic cellular respiration? glucose. What are the products of anaerobic cellular respiration? carbon dioxide, ethanol. aerobic cellular respiration. energy releasing, oxygen dependent metabolic pathway in the mitochondria., LAB 6. Date: 9/16/ Title: Cellular Respiration- Yeast Fermentation. Purpose: In this experiment, we will test how efficiently yeast ferments different sugars of glucose, …, 3) measure rate of respiration of peas at 10 C or room temp. Aerobic cellular respiration. release of energy from organic compounds by metabolic chemical oxidation in mitochondria within each cell; oxygen is required. 3 ways cellular respiration can be measured. 1) consumption of O2 (in this lab) 2) production of CO2. 3) release of energy., Cellular respiration is the process that cells use to transfer energy from the organic molecules in food to ATP (Adenosine Tri-Phosphate). Glucose, CO2, and yeast (used as a catalyst in this experiment) are a few of the many vital components that contribute to cellular respiration. Sugar/ glucose is an important carbohydrate that can be made ..., Respiration of Sugars by Yeast. Experiment #12A from Biology with Vernier. In this experiment, you will. Use a CO 2 Gas Sensor to measure concentrations of carbon dioxide. Determine the rate of respiration by yeast while using different sugars. Determine which sugars can be used as a food source by yeast. Recommended. Sugar Fermentation, Virtual Labs are now live for your Biology course. Attend this webinar to find out how to access and create Virtual Labs as we are moving to online ..., Note that fermentation is less efficient than aerobic respiration. This lab will explore both aerobic and anaerobic respiration in various organisms. Part 1- Anaerobic Respiration (fermentation) One form of anaerobic respiration well known by most involves the use of yeast in the production of bread, beer, and other products., Respiration and fermentation are two common metabolisms in eukaryotic heterotrophs distinguished by large differences in NADPH cycling. They have been extensively studied …, Purpose: This experiment is conducted to understand fermentation, and the factors affecting its. functioning such as NaF (inhibitor) by using experimental devices such as. Also, to explain. the ..., In the yeast Saccharomyces cerevisiae, fermentation is the major pathway for energy production, even under aerobic conditions. However, when glucose becomes scarce, ethanol produced during fermentation is used as a carbon source, requiring a shift to respiration. This adaptation results in massive reprogramming of gene expression., This activity describes a mini- to microscale setup that offers an affordable, reproducible, and accurate method to compare the aerobic and anaerobic respiration of Saccharomyces boulardii, a strain of Saccharomyces cerevisiae. By using cost-effective methodology and standards, students are exposed to concepts such as stoichiometric …, a. Aerobic respiration produces up to 38 ATP molecules from one glucose molecule. Fermentation produces about 2 ATP molecules from one glucose molecule and glycolysis also produces 2 ATP molecules. EXPERIMENT 1: FERMENTATION BY YEAST Data Tables. Table 1: Yeast Fermentation Data. Tube. Initial Gas Height (mm) Final Gas Height (mm) Net Change. 1 ..., View Key to Cellular Respiration Lab.pdf from BIOL 1020 at Century College. Answer Key to Cellular Respiration Lab Grading: Fermentation by Yeast: 9 pts Aerobic Respiration in Beans: 6 pts Experiment AI Homework Help , Lab 10 Cellular Respiration and Fermentation Quiz. Cellular Respiration formula. Click the card to flip 👆. C6H12O2 + 6O2 ------> 6CO2 + 6H20 + Energy (ATP) Click the card to flip 👆. 1 / 8., Lab 04: Respiration & Fermentation Lab Activity 1: Table 1 Temperature Conditions Bean Mass (g) 0 m (mL) 5 min. (mL) 10 min. ... yeast employs fermentation to make CO 2. 4. What was the concentration of azide in the yeast culture? ... rapid rate of cellular respiration, sucrose sugar would be the greatest choice for, In cellular respiration, oxygen is the terminal electron acceptor, because it picks up the electrons at the end (the terminus) of the electron transport chain. This job is so important that, as you saw above, if oxygen is not present, this part of cellular respiration will not occur. Figure 13.3.3 13.3. 3: Mitochondrion and Electron Transport.