Btec Applied Science Unit 6 Assignment A (Full Assignment)
434 views 4 purchases
Course
Unit 6 - Investigative Project
Institution
PEARSON (PEARSON)
Book
BTEC Level 3 National Applied Science, Student Book
This is Btec Applied Science Unit 6 Assignment A (Project Research) which was awarded a distinction. This is an example of a Distinction level assignment, and you may use it as a guide to help you achieve a distinction and finish this assignment.
BTEC Applied Science Unit 23A - Gathering and preserving forensic evidence (Distinction)
BTEC Applied Science Unit 17CD - Culturing microorganisms (Distinction)
BTEC Applied Science Unit 17AB - Classifying microorganisms (Distinction)
All for this textbook (25)
Written for
BTEC
PEARSON (PEARSON)
Applied Science 2016 NQF
Unit 6 - Investigative Project
All documents for this subject (173)
Seller
Follow
a-am
Reviews received
Content preview
Unit 6: Investigative Project
A: Undertake a literature research and review to produce an investigative project proposal
Assignment title: Project research
Introduction: The goal of this experiment, "Effect of Penicillin on Bacterial Growth," is to determine how
well penicillin kills bacteria or hinders their ability to grow and reproduce. The impact of various
penicillin concentrations on bacterial growth will also be examined in this experiment. This subject was
chosen because bacterial diseases including syphilis, meningitis, and throat infections are presently
treated with penicillin, which is heralded as the first miracle medication. It functions by activating other
enzymes that break down these defences while suppressing the enzymes that construct the bacterial cell
walls. A common antibiotic for treating staphylococcal and streptococcal bacterial infections is
penicillin. Penicillin, which belongs to the beta-lactam family of antibiotics, stops the growth of bacterial
cells, which ultimately results in the bacterium's death. Toxins, which are lethal compounds that cause
cell damage and illness in humans, are produced by certain bacteria. Certain bacteria really enter the
body and severely harm the tissue, causing illnesses like strep throat, urinary tract infections, and
numerous others. So, it's crucial to avoid bacterial growth. This is a laboratory-based work which
includes improving laboratory skills, including health and safety risks, planning a method and
hypothesis, collecting and analysing data.
Main body
Mainstream views on the topic: According to (Chow, Susan Penicillin mechanism. (Website) News
Medical Life Sciences. Available from: https://www.news-medical.net/health/Penicillin-Mechanism.aspx
(Accessed on: 23/03/2023). By attaching to DD-transpeptidase and preventing it from cross-linking and
producing new cell walls, penicillin prevents the growth of bacteria. Without a cell wall, a bacterial cell
is vulnerable to moisture and external molecular pressure, which swiftly destroys the organism. As
human cells lack a cell wall, therapy with penicillin kills bacteria without damaging them. Gram-
negative bacteria can be recognised from gram-positive bacteria by having thicker cell walls with less
peptidoglycan and thinner cell walls with more peptidoglycan. The lipopolysaccharide (LPS) coating on
the cell walls of gram-negative bacteria prevents antibiotics from penetrating them. Gram-positive
bacteria have the highest levels of DD-transpeptidase activity, hence they are the greatest targets for
penicillin. Another mainstream view on this topic which is from university of Hawaii (Weird Science:
Penicillin and the Cell Wall. (Website) University of Hawaii. Available from:
https://manoa.hawaii.edu/exploringourfluidearth/biological/aquatic-plants-and-algae/structure-and-
function/weird-science-penicillin-and-cell-wall. (Accessed on: 23/03/2023). Penicillin inhibits the
creation of the peptidoglycan molecule. The strength of the bacterial cell is derived from the firmly
interconnected peptidoglycan molecules, which also prevent cytoplasmic leakage. Almost all bacteria
have peptidoglycan as part of their cell walls. As the makeup of each organism's cell wall is unique,
penicillin has no effect on other species. For instance, cellulose is used by plants to build their cell walls.
The cell walls of algae can vary greatly. Algal cell walls contain cellulose, xylan, silica, carrageenan,
among a variety of other materials. Chitin makes up the majority of the cell walls in fungi. Although not
all of them, penicillin mostly kills bacterial cells. Despite the fact that some bacteria are still resilient to
the effects of antibiotics, the immune system is able to quickly eradicate them.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller a-am. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.65. You're not tied to anything after your purchase.