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Unit 12 Disease and Infections Part A
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- PEARSON (PEARSON)
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First Submission/ResubmissionAssessment Record Sheet
(BTEC Foundation Diploma in Applied Science)
Pearson BTEC Level 3
Programme Foundation Diploma in Learner name
Applied Science
Assignment title Disease and infections Assessor name
Targeted assessment
Unit no. & title Unit 12 P1, P2, M1, D1
criteria/learning aims
Issue date Submission deadline 15/03/2022
First
submission/resubmissio first Date submitted 15/03/2022
n?*
Resubmission
authorisation Signature Date
by Lead Internal Verifier*
* All resubmissions must be authorised by the Lead Internal Verifier. Only one resubmission is possible per assignment,
providing:
The learner has met initial deadlines set in the assignment, or has met an agreed deadline extension.
The tutor considers that the learner will be able to provide improved evidence without further guidance.
Evidence submitted for assessment has been authenticated and accompanied by a signed and dated declaration of
authenticity by the learner.
**Any resubmission evidence must be submitted within 10 working days of receipt of results of assessment.
Criteria
Targeted
achieved? Assessment comments
criteria
(Yes / No)
D1
M1
P1
P2
Comments
Target Progress
Grade grade
______ ______
General comments / Learner comments
Assessor I certify that the evidence submitted for this assignment is the learner’s own. The learner has clearly
declaration referenced any sources used in the work. I understand that false declaration is a form of malpractice.
Assessor signature Date
Learner declaration I certify that the work submitted for this assignment is my own. I have clearly referenced any sources
used in the work. I understand that false declaration is a form of malpractice
Learner signature Date
,RESUBMISSION
Authenticity Statement
In signing below, you, the student, certify that the resubmission work is authentic
(produced by you), and not copied from another source e.g. internet or another
student’s work.
Signed Date
Criteria
Targeted
achieved? Assessment comments
criteria
(Yes / No)
Internal Quality Assurance (If sampled)
IQA Name
IQA Signature
IQA Grade
Date:
Awarded
Resubmission: Internal Quality Assurance (If sampled)
IQA Name
IQA Signature
IQA Grade
Date:
Awarded
P1. Explain the characteristics of the five main types of pathogens and a disease caused by
each
Bacteria
Represent a single cell microorganism consisting of prokaryotic cells that are single cells and doesn’t
have any organelles for example mitochondria, chloroplast or a nucleus. In the deoxyribonucleic acid, a
double stand that is uninterrupted and circular is positioned in the nucleoid. A nucleoid is representing
an irregular shape within the prokaryotic cell and contains genetic material. Moreover, bacteria can
have a cell membrane and cell wall and it’s made of peptidoglycan. Some bacteria can consist of an
extra circle of genetic material which has the name of plasmid and contains genes. The reproduction of
bacteria is asexual because the two daughters’ cell have binary fission with the identical
deoxyribonucleic as the parent cell. They have different sizes and shape. Bacteria is a small
microorganism that can be only seen with a microscope, and you can distinguish three main shapes
, and can be classified by their shape for example Bacilli (rod-shaped), Cocci (sphere-shaped) and Spirilli
(spiral-shaped). Bacteria can form an endospore which are structures extremely resistant to chemical
conditions for example UV radiation, heat and disinfectants.
Photo reference: https://flexbooks.ck12.org/cbook/ck-12-middle-school-life-science-2.0/section/5.2/
primary/lesson/bacteria-characteristics-ms-ls/
Parasites
They are living organisms that sustain themselves through nutrients or other resources. Parasites live
on or within and they are known as a host. A parasite may live on the surface of a host or within the
body’s host. There are many varieties of parasites for example insects or worms, and they can be
pathogenic and cause infectious disease. Moreover, they are specialised organisms that can derive food
from the host. Parasites are smaller than their host and they use both vertebrates and invertebrates.
Parasites can live on the host for example live or in the host such as tapeworms.
Photo reference: https://www.istockphoto.com/photo/diagram-showing-a-variety-of-parasites-
gm178850264-25389982
Viruses
Represents tiny, microscopic particles that are found everywhere and can be presented in plants,
animals and other living organisms. Moreover, a virus is an infectious particle that is reproduced by a
host cell. A virus is composed of ribonucleic acid or deoxyribonucleic acid genome that is found inside
of a protein shell known as a capsid. Viruses have a variety of types, and they came in different
structures and shapes with different genomes, life cycles and hosts. Moreover, some viruses can have
an outer layer that is called an envelope which is formed by the membrane phospholipid. There are
three types of viruses’ example animal viruses, bacteriophages and plant viruses.
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