You are curious to know whether the amount of sugar (food) provided to yeast impacts how much waste gas is produced. To help answer this question, you set up an experiment similar to the one you performed in lab. However, this time, you use four flasks instead of two. In Flask 1 you add 1/4 teaspoon of sugar, in Flask 2 you add 1/2 teaspoon of sugar, in Flask 3 you add 1 teaspoon of sugar, and in Flask 4 you add no sugar. You add 1/2 teaspoon of yeast ("unlabeled sample") and 20 mL of lukewarm water to each flask. You place a balloon on top of each flask. After 30 minutes, you measure the circumference of each balloon to determine how much gas was produced efer back to this experiment to answer questions 1-7. ________________ A) What were the treatment groups in this experiment? B) Which group was the control group?

You are curious to know whether the amount of sugar (food) provided to yeast impacts how much waste gas is produced. To help answer this question, you set up an experiment similar to the one you performed in lab. However, this time, you use four flasks instead of two. In Flask 1 you add 1/4 teaspoon of sugar, in Flask 2 you add 1/2 teaspoon of sugar, in Flask 3 you add 1 teaspoon of sugar, and in Flask 4 you add no sugar. You add 1/2 teaspoon of yeast ("unlabeled sample") and 20 mL of lukewarm water to each flask. You place a balloon on top of each flask. After 30 minutes, you measure the circumference of each balloon to determine how much gas was produced efer back to this experiment to answer questions 1-7. ________________ A) What were the treatment groups in this experiment? B) Which group was the control group?

Curren'S Math For Meds: Dosages & Sol

11th Edition

ISBN:9781305143531

Author:CURREN

Publisher:CURREN

Chapter10: Reconstitution Of Powdered Drugs

Section: Chapter Questions

Problem 47SST

See similar textbooks

Similar questions

In a reproduction of an experiment famously performed by Louis Pasteur, you cultured yeast in the absence of oxygen (anaerobic growth) and measured (1) the rate of cell division, (2) the rate of glucose consumption, and (3) the intracellular ATP:ADP ratio. You then moved the cells to an incubator containing normal atmosphere (i.e., 21% oxygen), completed a second set of measurements, and made the following observations: The rate of cell division increased considerably after the addition of oxygen (aerobic growth) Glucose consumption dropped dramatically after the addition of oxygen Intracellular ATP:ADP ratios increased significantly (from 2:1 in the absence of oxygen to 10:1 in the presence of oxygen) Explain how the mitochondria in the yeast contribute to the dramatic drop in glucose utilization and increase in ATP concentrations in the presence of oxygen.
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.
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 line graph showing how the independent variable(x-axis) affected the dependent variable (y-axis). Be sure to include all necessary labels.
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. What is the purpose of this investigation?
Cathy placed a sample of yeast, a single-celled eukaryote, in a closed test tube containing a solution of glucose. How will the composition of the air in the test tube change as the yeast interacts with the glucose?
A scientist placed a sample of yeast, a heterotrophic single-celled eukaryote, in a closed test tube containing a solution of glucose. How will the composition of the air in the test tube change as the yeast interacts with the glucose?
Fluconazole is used to treat yeast infections by inhibiting the production of ergosterol. What would happen if you took away the ability for the yeast to produce ergosterol?
The purpose of the balloons in the yeast/lactose experiment was to collect O2 gas. True or false
You want to replicate Francesco Redi’s “rotting meat” experiment in disproving spontaneous generation, but improve upon the original experimental design. You have access to: ●1 kg of uncooked minced beef ●Gas cook top ●Fry pan ●Plastic cling wrap ●Bowls ●Refrigerator set to 4 degrees 1A. Describe TWO (2) experimental variables you will change and monitor, and how you will use the above items to do so.
water and yeast water, yeast, and sugar water and sugar water, yeast and flour boiling water, yeast and sugar which balloons did fermentation occur? In which balloon did the most fermentation occur and why? Of the balloons in which fermentation occurred, which balloon emitted the smallest amount of carbon dioxide gas (less fermentation occurred). Discuss why this happened List the balloons in which fermentation did not occur, and discuss why fermentation did not occur in each.
Some friends are trying to make wine in their basement. They've added yeast (which is a facultative anaerobe - it can perform both aerobic respiration and fermentation) to a sweet grape juice mixture and have allowed the yeast to grow. After several days they find that sugar levels in the grape juice have dropped, but there's no alcohol in the mixture. The most likely explanation is that the mixture needs less oxygen, because yeast only produce alcohol in the absence of oxygen the mixture needs less sugar, because high sugar concentrations prevent fermentation the mixture needs more sugar, because yeast need a lot of energy before they can begin to produce alcohol the yeast used the alcohol as a carbon source the mixture needs more oxygen, because yeast need oxygen to break down sugar and get enough energy to produce alcohol
You are talking with a winemaker about yeast. "I know that yeast can survive under both aerobic and anaerobic conditions," he says, "but what I don't understand is why they seem to need so much more sugar under anaerobic conditions. I think they gobble a hundred times as much sugar." Can you explain to him why yeast might need more sugar under anaerobic conditions than under aerobic conditions? Is his estimation of a hundred times as much sugar reasonable?