Representing Immune Responce

Innate Immune Defence

Physical Barriers

Second Line

External

Internal

Skin

Mucus membranes

Nostril Hairs

Phagocytes

Antimicrobial proteins

Attack cells

Line entry openings of
human body

Provides strong barrier
again diseases, only
get through if broken

Catch bacteria


Lymphocyte, able to bind
certain tumor cells and virus
infected cells, kill them by the
insertion or
granules containing perforation


Capable of engulfing
and absorbing bacteria,
small cells and particles

Can adhere to the
lipid membranes
of bacterial cells,

Antimicrobial resistance

Ant mechanism that enables
bacteria to
inhibit antimicrobial action

Peptide

Amphipathic

A molecule with both hydrophoic
and hydrophilic groups
that allow it to adhere to lipid
structures easily

A class of organic compounds consisting
of various numbers of amino acids
in which the amine of one is
reacted with the carboxylic
acid of the next to form anamide bond

Innate immune response

Body recognises
invasion of bacteria or virus

Increase in white blood cells; phagocytes.
Phagocytes fight infection

Acquired Immune Responce

T Cells are active in the human body

White blood cells can recognise the antigen/pathogen - starts
regeneration process of cells

Helper T cells

Killer T cells

Recognize the antigen/pathogen

  • B cells activate

B cells produce antibodies

Antibodies
destroy the antigen/pathogen
some antibodies can remainn and
protect against future pathogens

Can work independant/direct to
destroy antigens/pathogens

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Sweat

Oil

Gastric fluids

Sweat out pathogens,
fluid for exit

Protective film

Can break down cells of pathogens