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Biology
3.3 Organisms exchange with their environment
3.3.1 Surface area to volume ratio
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Created by
Dorcas แถป ๐ ๐ฐ
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Cards (3)
The
smaller
the surface area to volume ratio, the
higher
the
metabolic
rate as
larger
organisms tend to
move
more so therefore
respire
more.
Ways large organisms compensate for low SA:V ratio include:
folding
in the surface of the
cell membrane
long
,
thin
or
elongated
shaped cells
specialised
gas
exchange
surface
The larger the organism, the
smaller
the
surface
area
to
volume
ratio, so the rate of diffusion of
gases
such as oxygen is
slower.
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