The Effect of Glucose Concentration on Anaerobic Respiration in Yeast

The Effect of Glucose Concentration on Anaerobic Respiration in Yeast

Length: 750 words (2.1 double-spaced pages)

Rating: Excellent

Open Document

Essay Preview

More ↓
The Effect of Glucose Concentration on Anaerobic Respiration in Yeast


Aim:To investigate the effect of glucose concentration on anaerobic
respiration in yeast.

Equipment list:

2* conical flask

Delivery tube with bung

Dropper

Yeast

Glucose

Limewater

Water bath

Stopwatch

Measuring Cylinder


Method:I am going to do 5 tests & each test will be performed 3 times
to get an average result. In one conical flask, I will mix together
25ml of yeast & 25ml of a glucose solution, with a delivery tube with
a bung in the top of it and leave it for 5 min so it gets
acclimatised; in the other conical flask I will put enough water to
cover the end of the delivery tube.

On the first test I will use a 10% concentration of glucose.

On the second test I will use a 15% concentration of glucose.

On the third test I will use a 20% concentration of glucose.

On the fourth test I will use a 25% concentration of glucose.

On the fifth test I will use a 30% concentration of glucose.

I will then put the yeast & glucose mixture in a warm water bath and
count how many bubbles of CO2 are produced within 5 min.

Fair Test:to make it a fair test, I am going to keep the water
temperature, volume of yeast and glucose, concentration of yeast and
the timings constant and the one thing I will change is the
concentration of the glucose so we can tell how the concentration of
glucose effects the respiration of yeast.

Prediction: I predict that the conical flask with the yeast and the
most glucose concentration will respire quickest.

[IMAGE]The conical flask with the yeast and the least glucose
concentration will respire slowest. This is because of the Lock and
Key Theory. Enzymes basically work due to the 'lock and key' theory,
where the substrate (the 'key') fits into the active site on the
enzyme and they bind together, the reaction takes place and the

How to Cite this Page

MLA Citation:
"The Effect of Glucose Concentration on Anaerobic Respiration in Yeast." 123HelpMe.com. 21 Apr 2019
    <https://www.123helpme.com/view.asp?id=122654>.

Need Writing Help?

Get feedback on grammar, clarity, concision and logic instantly.

Check your paper »

Effect Of Respiration On A Anaerobic Respiration Essay

- P6 – Respiration comes with two variations, one being aerobic respiration and the other being anaerobic respiration. Generally speaking respiration is the process in which energy gets released to be used by cells which comes from glucose. This process can occur with the use of oxygen which is named with one of the variations of respiration called aerobic respiration. Respiration that does not require oxygen is called anaerobic respiration. Equation for aerobic respiration = glucose + oxygen Carbon dioxide + water (+ energy) Co2 + H2o are waste products in this chemical equation whereas the glucose + oxygen are the substances that get used up....   [tags: Cellular respiration, Adenosine triphosphate]

Research Papers
1581 words (4.5 pages)

Anaerobic Respiration of Yeast Essay

- Anaerobic Respiration of Yeast Aim: To investigate the effect of temperature on anaerobic yeast respiration. Basic outline plan: I plan to force a solution of yeast and glucose to anaerobicly respire. I plan to measure the gas collected at allotted intervals during a set period of time, when the solution is at different temperatures. I will need equipment to accurately measure the volume of gas collected, and an indicator to show me that all no oxygen is present in my solution....   [tags: Papers]

Free Essays
1529 words (4.4 pages)

The Role Of Carnosine And Its Effect On The Muscles Of Mammals Essay

- β-alanine is naturally found in carnosine in the muscles of mammals. In order to understand β-alanine supplementation, the role of carnosine is essential. During short intervals of high intensity exercise, ATP is broken down and protons are released in the anaerobic process of glycolysis. Throughout glycolysis, glucose converts to pyruvate, which changes into lactic acid, and lactic acid converts back to glucose and continues to repeat the process. As a result, there is a buildup of lactic acid due to the buildup of protons....   [tags: Muscle, Muscular system, Lactic acid, Glucose]

Research Papers
892 words (2.5 pages)

Energy Is Essential For Survival Essay

- Energy is essential for survival, and the human body is remarkably efficient at utilizing different energy sources. The body can obtain energy from glucose when consuming a normal carbohydrate diet, or from ketone bodies when consuming a ketogenic diet. This is an alternative source of energy that the body will use when 5% (or less) of total kcal come from carbohydrates. Metabolic processes differ depending on the energy source. Because the metabolic process in a normal and low carbohydrate ketogenic diet differ, individuals with type II diabetes improve glycemic control and stop medication use when consuming a LCKD....   [tags: Metabolism, Carbohydrate, Glucose]

Research Papers
948 words (2.7 pages)

The Effects of Concentration of Sugar on the Respiration Rate of Yeast Essay

- The Effects of Concentration of Sugar on the Respiration Rate of Yeast Investigating the effect of concentration of sugar on the respiration rate of yeast We did an investigation to find how different concentrations of sugar effect the respiration rate of yeast and which type of concentration works best. Respiration is not breathing in and out; it is the breakdown of glucose to make energy using oxygen. Every living cell in every living organism uses respiration to make energy all the time....   [tags: Papers]

Free Essays
1192 words (3.4 pages)

The Effect Of Glucose On Blood Glucose Levels Essay

- Introduction (20%) -Information is used to make an insightful and convincing argument for the hypothesis -Detailed and complete for specific treatment, measurable outcome, and context. Introductory paragraph about the broad field of the research. Each subsequent paragraph becomes more specific, so together they provide all the relevant background information that is needed to understand the hypothesis. Finally, at the end of the section, you should state the scope of the experiment you performed and your hypothesis....   [tags: Blood sugar, Insulin, Glycogen, Glucose]

Research Papers
1626 words (4.6 pages)

The Effect Of Glucose On Blood Glucose Levels Essay

- Introduction: Blood glucose levels are the measurement of glucose in an individual’s blood. This is important because glucose is the body’s main source of fuel and the brains only source of fuel. Without energy from glucose the cells would die. Glucose homeostasis is primarily controlled in the liver, muscle, and fat where it stored as glycogen. The pancreas is also a significant organ that deals with glucose. The pancreas helps regulate blood glucose levels. Alpha-islet and beta-islet pancreatic cells measure blood glucose levels and they also regulate hormone release....   [tags: Blood sugar, Insulin, Glucose tolerance test]

Research Papers
1487 words (4.2 pages)

Effect of Glucose Concentration on Osmosis Essay

- Effect of Glucose Concentration on Osmosis The aim of my experiment is to investigate the effect of glucose solution on osmosis in potato chips. I shall be observing how the mass of the potato chip changes in different concentrations of glucose solutions. Simply, will the effect of the action of osmosis be affected by the concentration of the solution. Firstly, I measure the mass of the potato chips, each one was to be 10 grams in weight. The chip will be placed into a glucose solution of a certain concentration....   [tags: Papers]

Free Essays
708 words (2 pages)

Investigating the Effect of Temperature on the Fermentation of Yeast Essays

- Investigating the Effect of Temperature on the Fermentation of Yeast To fully investigate the effect of temperature on the rate of fermentation of yeast Background Information Yeast is a single-cell fungus, occurring in the soil and on plants, commonly used in the baking and alcohol industries. Every living thing requires energy to survive and through respiration, glucose is converted into energy. There are two types of respiration available to living cells are: 1....   [tags: Papers]

Research Papers
3692 words (10.5 pages)

The Effect of Temperature on the Rate of Respiration in Yeast Essay

- The Effect of Temperature on the Rate of Respiration in Yeast There are two types of respiration in yeast: Aerobic: [IMAGE] Anaerobic: Glucose [IMAGE] Carbon dioxide + ethanol + energy Respiration is controlled by enzymes, which are proteins which speed up one or more biological reactions. Within any cell many chemical reactions are going on at any one time. Yeast has many different types of enzymes that speed up respiration. Prediction I predict that as temperature increases, the rate will also increase, until a certain optimum temperature, after which, the rate will decrease until the rate is zero as respiration has stopped completely....   [tags: Papers]

Free Essays
1871 words (5.3 pages)

Related Searches

substrate unlocks to form one or more new substances leaving the
enzyme ready to perform the binding again. An enzyme can only bind
with a substrate that fits the shape of the active site unique to that
kind of enzyme. When some substrate substances induce a fit with the
enzyme, the enzyme may not be able to 'accept' some other substrates.

Results Table:

Test Number

10% Glucose concentration

15%Glucose concentration

20% Glucose concentration

25% Glucose concentration

30% Glucose concentration

Test 1

28 bubbles in 5 min

33 bubbles in 5 min

54 bubbles in 5 min

61 bubbles in 5 min

107 bubbles in 5 min

Test2

26 bubbles in 5 min

40 bubbles in 5 min

44 bubbles in 5 min

50 bubbles in 5 min

103 bubbles in 5 min

Test3

27 bubbles in 5 min

45 bubbles in 5 min

56 bubbles in 5 min

65 bubbles in 5 min

100 bubbles in 5 min

Average

27 bubbles in 5 min

39 bubbles in 5 min

51 bubbles in 5 min

59 bubbles in 5 min

104 bubbles in 5 min

Safety Points:

1. Make sure all glassware is away from edge of table.

2. Put all Coats, Bags & Stools away.

3. Make sure water bath doesn't get too hot.

4. Always wash hands when finish.

5. Take care of all the glassware.

Analysis:

From my final results table, I can use the average results to plot a
graph of results.

From my results I can identify a line of best fit. My graph shows that
as the concentration of glucose solution is increased, the amount of
carbon dioxide produced also increases. The fact that carbon dioxide
is being produced, proves that respiration is taking place. The
continual increase of carbon dioxide means that the rate of
respiration increases as the concentration becomes less dilute and
stronger. I can see that the rate of respiration is at its slowest
when there is little glucose solution present. When the concentration
was of 10%, the amount of bubbles produced isn't very high at an
average of 27 in 5 min. There is a big difference between the rates of
reaction of 10% compared with the 30% concentrations. This definitely
suggests that concentration has a large impacting affect on the rate
of respiration. The concentration of a solution can speed up or slow
down the rate of respiration depending on how concentrated the
solution is. In the case of my experiment, the strongest concentration
speeded up the rate of respiration while the weakest concentration was
very slow in producing carbon dioxide thus, showing that the rate of
respiration was much slower.

Evaluation:

I thought the results obtained were quite accurate. They seem to be in
the same sort of shape on my graph. However, on my repeats there are
some noticeable differences between test 2 and the others. On test 2
for 20%, the result is 10 and 12 bubbles less than test 1 & 3 and this
happens again for 25%, it is 11 and 15 bubbles less than test 1 & 3.
The explanation I can offer for this is that there must have been a
mistake I have made or I might have not let it rest for the allotted
time. I thought all of my other results generally fitted the overall
trend well. I thought the experiment allowed the prediction to be
tested very well as it proved the points that I wanted it to, and very
conclusively as well. I thought my method was pretty foolproof too
which would help anyone who wanted to do this experiment and only had
my piece of coursework. I think my results were reliable enough to
support the prediction especially due to the fact that there are no
obvious abnormalities. If I was to do the experiment again, I would
use a different means of counting the bubbles as the human eye could
make mistakes.
Return to 123HelpMe.com