Introduction of Yeast, the living
organism
The
yeast is the single celled living organism which is also important in the
product preparation of food and drinks for different centuries. Then the yeast also
knows Saccharomyces cerevisiae. There are many more other living organisms; sugar
is the source of energy for the yeast. From sugar the energy is also extracted
through the fermentation or the aerobic cellular respirations. Thus, the yeast
became also active in the various tubes and it became also enormously active in
the sample of sugar.
Aims
and objective of Yeast, the living organism
The
aim and objective of this experiment is to work with the yeast and investigate
how the various variable effects on the production of the carbon dioxide.
Hypothesis of Yeast, the living organism
In
this lab experiment I think by the more amount of yeast we put in then more
carbon dioxide is produced. When the amount of yeast is mixed by the sugar and
water then its creates the reaction. In addition to when different chemical reacts
to each other then they produced carbon dioxide (PEPIN , 2015).
Variables
Dependent variable of Yeast, the living
organism
The
variable which is measured the amount of tube and it under goes down in the 10 minutes.
Then after the 10 minutes we would look on the scale side of the cylinder and
see how much amount went down (Phys.Ksu, 2005).
Independent variable of Yeast, the living
organism
In
this lab experiment the independent variable which we selected is sugar: yeast
ratio. The variable which would be changed by the amount of yeast and it would
also change by every time of measuring the various amount of yeast on the
electronic scale.
Control Variables of Yeast, the living
organism
There are different
control variable which is used in this lab experiment;
·
Time
·
Amount of water
·
Amount of sugar
·
Cylinder and conical flask (Marlita, 2012)
Method
Material of Yeast, the living organism
The material which is
used in this lab experiment is;
·
Dried yeast
·
Different sugar as provided
·
Balloons
·
Measuring taps
·
Slat
·
Bench scale
·
Thermometers
·
Glassware
·
Access to water
·
Container for water baths
Method of Yeast, the living organism
·
In this lab experiment in the triplicate
first of all weigh the 2g of yeast to each flask.
·
Weigh the sugar amount to be the weight bath
·
Filled the conical flask by adding the amount
of sugar with the yeast
·
Add 75 ml of water from the measuring the
cylinder
·
Place a balloon securely over the topot of
the flask
· Then place the three (3) flasks into the 40 water bath
·
After the 40 minutes, measure the
circumstance using a piece of string and measure by the ruler
Results & Analysis of Yeast, the living
organism
The
data analysis which is revealed is the test hypothesis and it was correct by
the levels of experiment. Thus the yeast became also active in the various
tubes and it became also enormously active in the sample of sugar. In the different
condition the sample of yeast is expanded and this expansion is more dissolved in
the substance of sugar which is also caused by the solution and it rise above
the rim of test tube. To visualize the observations a data is obtained which is
more relative, and thus relatively is arisen due to the great difference which
is also observed among the sugar activity substance and in the various 3 test
tubes. By the different levels of growth the substance of sugar which is easily
exceeded by the 200 count level and it was also observed in the excess amount
of the 100 in three solutions.
In
the blow now indicate the amount of sugar which produced the carbon dioxide.
This graph also presents the abrupt peak which is start and declining like the rapidly
peaked. Then it also has the clear observation for the yeast before the drastic
decline which is observed.
Observation
|
|
|
Sugar
|
0 gram
|
2 gram
|
4 gram
|
8 gram
|
Trail (1)
|
0.0cm
|
15.0 cm
|
17.1 cm
|
16.1 cm
|
2
|
0.0cm
|
13.5 cm
|
14.9 cm
|
16.0 cm
|
3
|
0.0cm
|
14cm cm
|
16.1 cm
|
15.0cm
|
|
|
|
|
|
|
Discussion of Yeast, the living organism
The
life cycle of yeast is dependent on the survival and the growth. Then the
survival as well as growth could also be explained into the various processes
which are named as the diploid and haploid. Then the yeast by the haploid cell
could pass by the simple life cycle which is also including the expansion. The
given data is about the yeast to sugar ratio which is produced the amount of
the carbon dioxide as shown in the above graph.
Conclusion of Yeast, the living organism
Summing
up all the discussion it is concluded that the lab report is about the Yeast is
the living organism. In this lab experiment the test hypotheses is evaluated.
The independent variable which is used in this lab is the yeast to sugar ratio.
It is concluded if the condition is more active the substance of sugar is between
the four conditions. Then luckily there is no problem and the discrepancies in
this lab experiment by the while process.
Reference List of Yeast, the
living organism
Marlita. (2012, Janurary 3). Yeast Lab
Report. Retrieved from
https://www.slideshare.net/marlita101/yeast-lab-report-10789957
PEPIN , C. (2015, April). The
fermentation of sugars using yeast: A discovery experiment. Retrieved from
https://uwaterloo.ca/chem13-news-magazine/april-2015/activities/fermentation-sugars-using-yeast-discovery-experiment
Phys.Ksu. (2005, August 19). Part A:
Yeast Genetics: Background. Retrieved from
https://www.phys.ksu.edu/gene/a1.html