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Unit 6b assignment
The effects of antibiotics on bacteria growth
Timeline of events
Date Event/Deadline What I intend to do Resources I will need
29/11/2021 Unit 6b assignment Start the assignment PowerPoints, internet, and Unit 6A info
lunch
13/12/2021 Resubmission Unit 6b Finalize the assignment Using teacher feedback
21/12/2021 Christmas break Unit 5 revision Past paper and PowerPoints
13/01/2022 Unit 7 exam Complete the exam The exam paper
24/01/2022 Unit 5 physics exam Complete the exam The exam paper
24/01/2022 Unit 5 chemistry exam Complete the exam The exam paper
25/01/2022 Unit 5 biology exam Complete the exam The exam paper
28/02/2022 Unit 6C/D assignment Start the assignment PowerPoints, internet, and previous units work
launch (6A,6B)
14/03/2022 6C/D deadline Finish the assignment Internet, previous units work and PowerPoints
14/02/2021 Practical work Complete the practical Equipment and method for completion
21/02/2022 Half term Research other units to The internet
start
17/02/2022 Unit 11A launch Start the assignment PowerPoints. Internet
10/03/2022 Unit 11A Submission Finish the assignment PowerPoints, internet
28/03/2022 Unit 6C/D resubmission Finalize the assignment Use teachers’ feedback
out
24/03/2022 Unit 11B launch Start the assignment PowerPoints, internet and previous units work
Aim
The aim for the experiment is to find out the most effective antibiotics at killing different
types of bacteria through a medium.
Equipment list
Equipment/ What will it be used for? Justify your choice
resource Does it require modification?
How and why?
Pen The pen (biro) would be used on the lid I would need to distinguish between the two
of the agar plate, and it would be used different agar plates so therefore, I would need to
to label the different samples with “A” label them, so I don’t get mistaken.
and “B” so I can distinguish between the
two different samples.
30cm ruler The ruler would be used to measure the A 30cm ruler is the most appropriate size for my
zone of inhibition size of the different calculations because it is long enough to get
antibiotics against the bacterium. measurement which accuracy.
Incubator The incubator would be used to keep the An incubator is better than leaving it in a room
agar plates thus bacteria at a constant because external factors can affect the temperature
temperature. e.g., changing it or opening a window. However, if
you put the agar plates in an incubator the bacteria
, would always be at a constant temperature thus
getting more accurate results.
Mast rings The mast ring is used in my experiment Without the mast rings I would have to place the
for placing the antibiotics in the agar antibiotics in manually, but with the mast ring it’s
plate accurately. easy to use and gives accurate evenly spaced
antibiotics in the agar plate. Compared to if I did it
manually there is a greater probability of my
antibiotics being spaced unevenly and inaccurate
thus affect the outcome of my results.
Bacteria The bacteria will be used to test the The bacteria is the fundamental towards my whole
antibiotics effectiveness. experiment because it is a constant and it is used to
test the antibiotics effectiveness which is my whole
experiment.
Antibiotics We will use antibiotics to test their The antibiotics are the critical part of the experiment
efficiency. because it is the substance we are testing for. With
the overall goal of finding out with antibiotic is most
effective and without antibiotics the experiment
would ultimately be useless.
Tweezers I will use the tweezers to place the mast Rather than using my fingers to place the mast rings
ring. down I would use tweezers because it is more
accurate and prevents any contaminated between
the antibiotics that could affect the results of my
practical.
Agar plates The agar plate is used in this experiment The agar plate is one of the most crucial parts of the
for the purpose of holding the bacteria experiment because it does not only hold the
as well as other purposes. bacteria and antibiotics, but it also acts as a culture
that can provide nutrients for the bacteria in order
for it to grow.
Disinfectant The stylisation equipment would be used I would need to stylise any equipment that I used
to stylise the experiment that I used after the experiment ( most noticeably the ruler) to
after the experiment and to spray down make sure that the ruler contaminates cannot
the surfaces before the experiment. physically contaminate my experiment thus keeping
my results as accurate as I can. I would also spray
down the surfaces before the experiment to stop
the possibility of contaminating the experiment
because it would affect the results making them
unreliable.
Bunsen burner The Bunsen burner would be used in my I would need to stylise any equipment that I used in
investigation to stylise any equipment my practical such as the ruler and tweezers this is in
used such as the tweezers. order to make my results as accurate as they can be
and to make sure that there is no possibility of
contamination in my experiment.
Heatproof mat The heatproof mat is used to prevent If we did not use a heatproof mat, it would cause
damage towards the desk. damage towards the desk and ultimately the desk
would get hot possibly resulting in injury towards
anyone who touches it.
Matches The match is used to light the Bunsen If we did not have matches, we could not light the
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