Limiting water loss 6.5

what does a small surface area to volume ratio do for the insect
It minimises the area over which water is lost
1 of 10
what is the waterproof covering made up of on an insect
chitin
2 of 10
what are the spiracles on an insect
The openings on an insect that reduce water loss
3 of 10
why do plants not have a small surface area to volume ratio
Because they photosynthesise and that requires a large surface area
4 of 10
How do plants reduce water loss
Able to close the stomata when necessary and they have a waterproof covering
5 of 10
What are the plants called that can live in areas of short supply
Xerophytes
6 of 10
what does a thicker cuticle in the xerophytes mean
It means less water can escape
7 of 10
what does the rolling up of leaves do in a xerophyte plant
This helps to trap air within the rolled leaf this region becomes saturated with water vapour meaning a high water potential
8 of 10
what do hairy leaves in xerophytes do for a plant
A thick layer of hairs traps moisture and water potential gradient in the leaf is reduced
9 of 10
what do stomata do for the xerophytes
Trap moist air and reduce water potential gradient
10 of 10

Other cards in this set

Card 2

Front

what is the waterproof covering made up of on an insect

Back

chitin

Card 3

Front

what are the spiracles on an insect

Back

Preview of the front of card 3

Card 4

Front

why do plants not have a small surface area to volume ratio

Back

Preview of the front of card 4

Card 5

Front

How do plants reduce water loss

Back

Preview of the front of card 5
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