9462357
Descrição
FlashCards por Aaishah Din, atualizado more than 1 year ago
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Criado por Aaishah Din
mais de 7 anos atrás
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| Questão | Responda |
| What do plants need to survive? | Plants need minerals, water, light, and space to grow to survive. |
| How does changing surface area help the plant? | The SA:V ratio is extremely important. The bigger the surface area, the more water lost by transpiration. |
| How could a: a) small, curled b) big surface area of a leaf be an advantage to the plant? | a) small - less water lost by transpiration traps a layer of moist air to reduce water lost by evaporation b) large leaves collect the dew that forms in the cold evening. |
| what are some adaptations in desert plants? | → small fleshy leaves with a thick cuticle to keep water loss down → small surface area to minimise water loss by transpiration → stems instead of leaves; fewer stomata |
| Describe the adaptations of cacti. | → The Sharp Spines. These sharp spines not only reduce the amount of water lost due to the plant not having any leaves; it also warns predators not to eat them. The fat, green body is a stem, full of water storing tissue which can take up to 1 TONNE of water/day. |
| Define transpiration. | Transpiration: The process of water vapour being lost through stomata by diffusion. |
| define stomata. | Tiny openings where gas exchange takes place for photosynthesis. |
| Photosynthesis and respiration take place very _ _ _ _ _ _ _ in _ _ _ or dry conditions. As a result, plants lost water very _ _ _ _ _ _ _, too. | !) quickly, 2) hot 3) quickly |
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