什么是植物激素?

植物激素

Flashcard
•
Biology
•
KG
•
Hard

娇 管
Used 1+ times
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7 questions
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1.
FLASHCARD QUESTION
Front
Back
植物激素是指植物体内产生的一些微量而能调节自身生理过程的有机化合物。
2.
FLASHCARD QUESTION
Front
植物体内产生的激素有哪六大类?
Back
生长素、赤霉素、细胞分裂素、脱落酸、乙烯和油菜素甾醇。
3.
FLASHCARD QUESTION
Front
植物激素的生理效应如何?
Back
植物激素的生理效应非常复杂、多样,影响细胞的分裂、伸长、分化,以及植物的发芽、生根、开花、结实、性别决定、休眠和脱落等。
4.
FLASHCARD QUESTION
Front
生长素、赤霉素、细胞分裂素的作用是什么?
Back
它们能促进植物生长和发育过程。
5.
FLASHCARD QUESTION
Front
脱落酸和乙烯的作用是什么?
Back
它们的作用是抑制植物生长,促进成熟和衰老。
6.
FLASHCARD QUESTION
Front
植物激素在植物生长发育的不同时期有什么特点?
Back
它们除各有其独特作用外,还能互相促进或抑制,充分发挥调节植物生长发育的作用。
7.
FLASHCARD QUESTION
Front
哪些因素会影响植物根系激素的含量和分布?
Back
一些矿质养分如氮、磷、钾和土壤逆境胁迫。
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