The student used three different 250mL flasks, each with 10g of sugar added to them. In flask one 3g of yeast was added, in flask two 6g of yeast was added, and in flask three 9g of yeast was added. Each flask then received 200mL of warm water and then swirled to mix. A balloon was placed over the mouth of each flask to capture the CO2  produced.    After waiting for one hour the student measured the circumference of the balloons and found the following: Flask one had a circumference of 10cm, flask two had a circumference of 14cm, and flask three had a circumference of 22cm.  Create a data table that would be used to collect and organize the data from this experiment.

Q: What is the purpose of sealing the flask with a balloon? What product is captured in the balloon?

A: Fermentation is the process of ATP generation by the microorganism. Carbohydrates are the substrate…

Q: Jeff prepared a tissue culture medium containing macronutrients, micronutirnts and vitamins. He…

A: Plant tissue culture is a laboratory technique to propagate complete plants from parts of the plant.…

Q: did water flow into or out of the plant cells (potato cells) in each of the samples examined? How do…

A: Osmosis is the movement of water molecules or solvent molecules from its high concentration towards…

Q: Give typing answer with explanation and conclusion    why do we use the multitest system known as…

A: Enteropluri test contains a special culture medium for the identification of bacteria. It is a…

Q: The student used three different 250mL flasks, each with 10g of sugar added to them. In flask one 3g…

A: Yeasts are fungus with the ability to perform alcohol fermentation. During this process, the product…

Q: What is the best method to filter the precipitate from it's reaction mixture? a Gravity filtering…

A: A product is precipitated from a reaction mixture and later collected by the process of filtration.

Q: Which of the following is luminous? ⦁    Star ⦁    Bird ⦁    Cup ⦁    Bat ⦁    Stapler

A: Our solar system consists of several planets revolving around Sun. When we look above in the sky we…

Q: You have observed the following data from an aerobic plate count. How many bacteria are in the…

A: Colony forming unit or CFUs/ml is the method of counting the viable cells.

Q: Your lab section performed the alcohol fermentation experiment as shown in the corresponding video.…

A: Alcohol by volume (abbreviated as ABV, ) is a standard measure of how much alcohol  is contained in…

Q: To prevent any signs of contaminants in the broth it is sterilized by heating. Sterilization by…

A: A broth refers to the growing media for microorganisms. It consists of ingredients that are known to…

Q: If I was interpreting the results of Durham tubes, Glucose, Lactose, Sucrose, for Staphylococcus…

A: The broth tubes also contain sugars other than glucose such as lactose and mannitol.  Due to a…

Q: Give two ways to prevent the diffusion of oxygen into the medium in this test.

A: The main two ways to prevent the diffusion of oxygen are given below.

Q: Samples subjected to a test were given. Determine the reagent/material in the test.  Methyl…

A: Different chemical tests use different reagents and apparatus depending on their working principle.

Q: Three water samples namely river water, untreated sewage water and secondary effluent discharged…

A: BOD or biological oxygen demand refers to amount of oxygen that is required by microorganisms in…

Q: What instrument is used to check the turbidity for a test tube? O Scale Desiccator Photospectrometer…

A: Question- What instrument is used to check the turbidity for a test tube?  Scale Desiccator…

Q: If at the end of an experiment it is found that the bottle where laboratory waste must be placed is…

A: There are many chemical experiments where waste are produced. Waste is any excess, unusable or…

Q: Five sweetener samples (labelled A to E) were tested by 97 individuals for the intensity of their…

A: Carbohydrates or carbs are maconutrient consisting of Carbon, hydrogen and oxygen atoms. In nature…

Q: Write a note on Hard gelatin capsules? Make the note on full making process etc

A: Introduction Hard-gelatin capsules are two cylindrical sections made of gelatin, known as the body,…

Q: Determine the titer for a plate made using milk and labeled 10^-6. you count 50 colonies.

A: Introduction:-  To Calculate the number of bacteria per milliliter or gram of a sample it is  divide…

Q: All recipes are given per litre unless specified.   Lambda Broth (LB) Plates…

A: Give, The final volume (V2) = 5mL. The stock concentration of MgSO4 (C1)= 1M The desired…

Q: reason that water for injection should be held on 80OC or above after distillation

A: Water for injection must be of exceptional quality and free of significant contamination. For…

Q: E Apps O YouTube 对Maps M Gmail Q Biology Chapter 1-. <Diffusion and Osmosis Lab LabBench: Diffusion…

A: 1)Plant cell A has higher water potential than cell B-False 2) Plant cell B is at equilibrium with…

Q: A ballon allows water but not sugar to pass through it . The ballon Contains a 10% sugar solution. A…

A: Osmosis is a process that equalises the concentrations on each side of a semipermeable membrane by…

Q: Was there any difference in the amount of gas produced by yeast in room temperature tapwater…

A: Saccharomyces cerevisiae, more commonly known as Baker’s Yeast, is a single-celled microorganism,…

Q: Which test tube shows the most fermentation?

A: Respiration is defined under breaking down of glucose into carbon dioxide water and energy in the…

Q: Benedict’s and Barfoed’s tests involve reduction of sugars.  True  False

A: Benedict's test : Detection of reducing sugars Barfoed's test : Detection of monosaccharides

Q: Name the process by which raisins get inflated when put in water.

A: Raisin is dried grape which is a component of dry fruits. As it is dried the watery component get…

Q: Writé án appropriate aim for the students' experiment. p) What is the purpose of beaker 2 in this…

A: Dialysis : It is a procedure to remove waste products and excess fluid from the blood when the…

Q: A sample was placed on a chromatography column. Dichloromethane was used as the eluting solvent. All…

A: Column chromatography is a technique that allows chemists to separate substances based on their…

Q: In a lab experiment, there was yeast added to four different test tubes.  One tube has water, one…

A: Answer  Yeast belongs to fungus group  The four different test tubes will show different results…

Q: When viewed under a microscope, bacteria appear as red rods after they have been stained. Explain a…

A: Introduction Bacteria Are Minute, Single-celled Organisms That Can Be Found In Large Numbers In All…

Q: What is the PH indicator utilized for fermentation media? ( short answer)

A: Answer: FERMENTATION : It is the metabolic process in which chemical changes occur in an organic…

Q: what is the chemical and physical method of preserving ginger and fresh beans  for one week and…

A: Ginger refers to the flowering plant which is important for its root called ginger root or ginger.…

Q: The data are plotted and we see this graph: 2 Time (weeks) Yeast A 0% Yeast A 5% Yeast A 10% Yeast…

A: By observing the graph We could see that the Yeast A shows a steady increase in the alcohol…

Q: You perform a serial dilution of a water sample and the 10-7 tube when 0.1 ml was plated onto the…

A: Estimation of the number of viable cells is important in microbiology protocols. It is estimated…

Q: The arrowhead shaped zone shows what reaction? How do you set up the test for this reaction? For…

A: INTRODUCTION Clostridium perfringens is a normal bactetia seen  in large intestine of humans and…

Q: The student used three different 250mL flasks, each with 10g of sugar added to them. In flask one 3g…

A: Yeast are the single celled organisms that can convert sugar and starch into carbon dioxide and…

Q: Indicate whether you think that the number of cfu/ ml calculated would be too high or too low if you…

A: Cfu refers to the colony forming unit which is formed through continuous replication of a single…

Q: Test Positive result Importance Liebermann- Burchard Salkowski

A: 1) Liebermann Burchard test consist of adding few drops of acetic anhydride and concentrated…

Q: You perform a nitrate test. After adding solutions A and B, the broth remains colorless. Why should…

A: Nitrate test helps us to determine the production of nitrate reductase enzyme. By the activity of…

Reproductive system infection

The biological process through which parents produce new children is called reproduction. A reproductive system is a group of internal and external organs that collaborate to allow males and females to reproduce. Many experts believe that the reproductive system is one of the most important systems in the body due to its crucial function in the survival of the species. Among the body's basic systems, the reproductive tract is the one that differs the most between sexes, and it is also the only one that does not operate until puberty.