This document contains summary’s on all of the communicable disease topic for OCR A biology. There are pictures to make it easier to visualise each description. The notes are made on GoodNotes and are easily readable.
Bacteriophage
↳ take bacterial and
destroying
to
over cells use them replicate ,
the
?⃝?⃝
,bacteria .
Bacteriophages identify and treat some disease
virus =
parasites
Protoctista
Eukaryotic organisms which include
single-celled organism and cell grouped
into colonies .
Small -1 diseases →
-
. act as
pathogens causing communicable parasitic
They use people 1 animals as their host
-
↳ need a vector to transfer them to their hosts ( malaria )
dysentery)
↳
may enter
body through polluted water ( amoebic mitochondria
most found near
of
growing tips
hyphae
vesicle adding
*¥g-gg@TE___F⑨
new cell wall
Fonsi
qq.g.gg
cenwa "
B-
'
Euvirayotic
cannot
,
multicellular
photosynthesis
vacuole
-68
.
C@
BBEF⇐?g
• ) . •
'
|
-
nucleus
granules
food extracellular before cytoplasm
digest absorbing the nutrients
-
y
( feed dead /
•
Many are
saphrocytes on
decaying matter )
Parasitic feed →
•
fungi on plants ,
stop them from
photosynthesizing Killing plant
• When
they reproduce
they produce millions of
tiny spores which spread
large distances → infect crop ( detestation
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