Hydrophytes Flashcards

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1
Q

Where do hydrophytes live?

A

In aquatic habitats

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2
Q

As they live in aquatic organisms, what does this mean?

A

They don’t need adaptations to reduce water loss but do need adaptations to maximise gas exchange and to cope with their aquatic habitat

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3
Q

What is the first adaptation of hydrophytes?

A

Stomata on upper surface of floating leaves so are in contact with air

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4
Q

What is the second adaptation of hydrophytes?

A

Their guard cells are inactive so stomata are permanently open

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5
Q

What is the third adaptation of hydrophytes?

A

Lack xylem tissue so have flexible leaves and stems which prevents damage from strong water currents

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6
Q

What is the fourth adaptation of hydrophytes?

A

Large air spaces in leaves, stem and roots providing buoyancy so they float on the surface maximising their exposure to light

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7
Q

What is the fifth adaptation of hydrophytes?

A

They have a thin or no waxy cuticle to maximise gas exchange and allow water to enter into the leaf

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8
Q

What is the sixth adaptation of hydrophytes?

A

Have large leaves to increase the SA for photosynthesis and gas exchange

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9
Q

What is the seventh adaptation of hydrophytes?

A

Have small stems and roots as these will easily be able to absorb sufficient water

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10
Q

What is the eighth adaptation of hydrophytes?

A

Some have hydrathodes which release water so the transpiration stream doesn’t stop

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