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Title: Gas Exchange in Leaves - AQA AS Level Biology
Description: As title describes, concise notes covering Gas Exchange in Leaves under chapter 6 of the kerboodle AS level (new( spec Biology.
Description: As title describes, concise notes covering Gas Exchange in Leaves under chapter 6 of the kerboodle AS level (new( spec Biology.
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Gas Exchange in Leaves
Warning
This is essentially all GCSE, but nevertheless you should phrase things in an AS style where
possible
...
Steep Concentration Gradient this occurs in the same way as it does in the insects’ tracheal
system, carbon dioxide is used up in photosynthesis and oxygen is produced, hence in the
day
oxygen diffuses out of the leaves and carbon dioxide diffuses into them due to the naturally
occurring concentration gradient
...
Large Surface Area this is created by the many mesophyll cells present, all of which have a
high surface area
...
To counteract this, plants close their stomata when the do not need them
open to acquire more carbon dioxide or lose more oxygen, this prevents water from evaporating
out of the stomata alongside the hair cells with the stomata that trap water that is evaporating
from the leaves
...
Title: Gas Exchange in Leaves - AQA AS Level Biology
Description: As title describes, concise notes covering Gas Exchange in Leaves under chapter 6 of the kerboodle AS level (new( spec Biology.
Description: As title describes, concise notes covering Gas Exchange in Leaves under chapter 6 of the kerboodle AS level (new( spec Biology.