Communicable diseases Flashcards
(20 cards)
Describe a communicable disease
CONTAGIOUS. Caused by pathogens.
DESCRIBE a non-communicabale disease
Non-contagious- not caused my pathogens.
Define a pathogen
Microorganisms that cause a disease
LIST the 4 types of pathogen
Bacteria Virus Fungi Protist
EXPLAIN how bacteria cause diseases
Produce TOXINS
EXPLAIN how viruses cause diseases
TAKE OVER AND DESTROYYYY cells
DESCRIBE how pathogens are spread
Air, Water, Direct Contact
LIST ways to prevent an infection from spreading
Hygiene, isolation, destroying vectors, vaccines/antibiotics
LIST three viral diseases
HIV/AIDS
MEASLES
TMV -TOBACCO MOSAIC VIRUS
Describe the characteristics of measles
spread by AIRR~ CAUSES fever and red rashhhh. NO TREATMENT vaccination prevents spread
Describe the characteristics of HIV/AIDS
SPREAD by SEXUAL CONATC«_space;/ exchange of BOLIDY FLUIDS. causes flue like illness and ATTACKS IMUNE SYSTEM
Characteristics of TMV
SPREAD by DIRECT CONTACT <> and insect VECTORS. Reduces photosynthesis and GROWTH because leaves lack of chlorophyll
TWO BACTERIAL DISEASES
SALMONELLA , GONORRHEA
DESCRIBE the characteristics of Salmonella
SPREAD by UNHYGEINIC FOOD. CAUSES STOMACH CRAMPS, diarrhea and vomiting. Poultry vaccinated in UK.
DESCRIBE the characteristics of Gonorrhoea
CAUSED BY SEXUAL CONTACT<>
CAUSES thick YELLOW/GREEN DISCHARGE and pain on urination. TREATED with ANTIBIOTICS!
Rose black spot
FUNGAL DISEASE> CAUSES BLACKK SPOTS.:*.. on LEAVES
reduces PHOTOSYNTHESIS + GROWWTH
SPREAD in RAIN * and airrrr
TREATED !by FUNGICIDES! removing / burning infected leaves
MALARIA? what is it??
PROTIST disease
SPREAD by mosquitos
Infects red BLOOD CELLS and LIVER
How do we prevent malaria
Net to avoid being bitten
PREVENT mosquitos breeding
LIST the body’s primary defencesagainst pathogens
SKIN - physical barrier ||||
NOSE - hairs and mucus trap pathogens(|)
TRACHEA - Hairs that SWEEEEP ((mucus))| up throat
STOMACH - Hydrochloric acid~~
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LIST THREE WAYS THAT WHITE BLOOD CELLS protect us from infection
Phagocystosis - white blood cells ENGULF pathogens
ANTIBODIES - latch onto and kill pathogens
ANTITOXINS - chemicals that counteract harmful substances released by pathogens
