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Card 16
Front
Give an example of a positive pressure breathing aid and what they do and why they might be better than a negative breathing aid.
Back
Card 17
Front
Where are the villi situated and what are they the exchange surface for?
Back
Card 18
Front
Why are the villi effiecient at being an exchange surface?
Back
Card 19
Front
Gases diffuse in and out of leaves through tiny holes called the___________.
Back
Card 20
Front
The stomata are controlled by ________ cells which __________.
Back
Card 21
Front
What gasses are exchanged and why?
Back
Card 22
Front
Plants loose water _____ through the stomata due to _________ in the leaves.
Back
Card 23
Front
Leaves are ______ and very ______ so the gases do not need to diffuse very far . There are aslo internal _______ pockets.
Back
Card 24
Front
What happens when a plant uses water faster than it can be replaced?
Back
Card 25
Front
Look at a cross section of a leaf write a six mark answer as to how they are adapted.
Back
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