Other
Unit 12A applied science complete assignment
- Institution
- PEARSON (PEARSON)
Complete unit 12A assignment
[Show more]
Content preview
Infectious and non-infectious diseases.P1:
Bacteria:
Structure of bacteria:
Bacteria cells are unicellular prokaryotic
their cells contain:
Cytoplasm
Cell surface membrane
Peptidoglycan cell wall
No membrane bound organelles
No real nucleus as the DNA is
free floating in the cytoplasm
Plasmids (small rings of DNA)
and a large circular loop of DNA
Small 70s ribosomes (smaller
than the eukaryotic cells)
Their size range is between 0.2 - 2µm in diameter and 1 - 8µm in length. The study of
bacteria is called bacteriology.
Bacterial disease (Tuberculosis):
Tuberculosis (TB) is a bacterial infection which is spread when a person inhales the droplets
from the coughs or sneezes of someone who is infected. TB is caused by Mycobacterium
tuberculosis. TB can affect any part of the body, but it mainly focuses on the lungs.
Symptoms of TB include a constant cough lasting over three weeks (usually bringing up
phlegm which may contain blood), loss in weight, high temperature, swellings in the neck,
etc. TB is generally curable; a patient will be prescribed a course of antibiotics for around six
months. Different antibiotics are prescribed because some forms of TB are resistant to some
antibiotics. If a patient is infected with a drug resistant form of TB, six or more medications
may be needed for treatment.
Fungi:
Fungi are eukaryotic cells that can be unicellular (yeast) or multicellular (mushrooms). The
size of fungi depends on the type of fungi it is, most microscopic fungi are 2 – 10µm in
diameter. The study of fungi is called Mycology.
Structure of fungi:
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 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 najbo123. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £10.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
73091 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now