
花花世界知多少?
Flashcard
•
Science
•
6th - 8th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
黄、橙黄、橙红色的花中含有的色素是什么?
Back
胡萝卜素
2.
FLASHCARD QUESTION
Front
红、蓝、紫花中的色素叫什么?
Back
花青素
3.
FLASHCARD QUESTION
Front
花青素的特性是什么?
Back
花青素使得花根据环境中的酸碱度变色,遇到酸就变红,遇到碱就变蓝。
4.
FLASHCARD QUESTION
Front
金鱼草喜欢什么样的小蜂?
Back
金鱼草喜欢的小蜂是特定的授粉者,通常是小型的蜜蜂。
5.
FLASHCARD QUESTION
Front
待宵草的状态可以用来判断什么?
Back
待宵草的状态可以用来判断时间,通常在傍晚时分开放。
6.
FLASHCARD QUESTION
Front
为什么黄橙色系的花也是五颜六色的?
Back
因为胡萝卜素有60多种不同的类型。
7.
FLASHCARD QUESTION
Front
胡萝卜素的主要功能是什么?
Back
胡萝卜素主要功能是作为植物的色素,吸收光能进行光合作用,并且对人类有益,能转化为维生素A。
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