Adaptations in plants

Pregunta	Respuesta
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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	Creado por Aaishah Din hace casi 7 años