Flashcards
Biology 3.1.3 Hydrophytes
Flashcards do conjunto (8)
- 1What are hydrophytes?Plants that live in water, either submerged, on the surface or at the edge
- 2What three things do the hydrophytes require? Why?Oxygen - respiration
Light - photosynthesis
Maintained transpiration stream - so that mineral ions can reach the leaves - 3Why do leaves have a large surface area?To capture all light for photosynthesis
- 4Why do leaves need to be above water?Absorb more light
- 5How do plants stay afloat?They have air spaces in the leaves that keep them afloat
- 6What are the two functions of air sacs in the leaves?Air sacs in the leaves keep the leafs afloat
Air sacs in the roots and stem allow oxygen to move from the floating leaves to the parts of the plant that are underwater - 7Why do they have stomata on the upper part of the leaf?The floating leaves need stomata on the upper surface so they are in contact with the air
- 8Why do hydrophytes have flexible stems and leaves?They have no need for rigid stems as they are supported by the water all around them. Furthermore, flexibility helps prevent damage doe by water currents
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- O usuário eliminou as informações de disciplina FlashCards sobre Biology 3.1.3 Hydrophytes, criado por Usuário eliminado em 22-04-2019.
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- Usuário eliminado · abr 2019
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- 22 abr 2019
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- Criado por Sam Gunnell · 17 abr 2019
- Copiado por Sam Gunnell · 22 abr 2019
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