In a science class, we observe a plant. What color is chlorophyll? A. red B. blue C. green D. yellow 相关知识点: 试题来源: 解析 C。本题考查科学知识。叶绿素是绿色的,选项 A“red”是红色;选项 B“blue”是蓝色;选项 C“green”是绿色;选项 D“yellow”是黄色。
三、完形填空(共10小题;每小题1分,满分10分)When you picture a leaf in your mind, what color is it? You may say not 36. The green color is from a chemical called chlorophyll(叶绿素) a green plant would not be able to 37.Chlorophyll helps plants produce food 38 photosynthesis(photosynthe...
问:“Why do leaves change color in autumn?”(秋天树叶为何变色?) 答:“Because chlorophyll breaks down, revealing other pigments.”(叶绿素分解后,其他色素显现。) 三、使用场景的区分 学习知识时:用“what”获取定义或事实,用“why”理解原理。 学习历史事件时,“What happen...
Well, before we discuss why leaves turn red, first, let's, urn, look, I know this is very old material, but just to play it safe, let's first go over why leaves are usually green. It's chlorophyll, right? Leaves get their green color from chlorophyll, the chemical that's responsib...
What color light does chlorophyll reflect?Chlorophyll:Chlorophyll is a pigment found within photosynthetic plants and organisms, generally contained within chloroplasts. Plants generally contain both chlorophyll a and b.Answer and Explanation: Become a member and unlock all Study Answers Start today. Try...
根据第二段内容,结合第一句 “In the spring and summer, tree leaves produce a chemical called chlorophyll(叶绿素), which is responsible for the green color.(在春天和夏天,树叶会产生一种叫做叶绿素的化 学物质,这就是树叶是绿色的原因)”可知,本段主要介绍树叶颜色的由来。故选B。 【 30题详解】 细节...
根据第三段 “For example, a deep blue sea will have very little life in it, while a green color means there are ecosystems there. The ecosystems are based on plant-like small living things which include chlorophyll(叶绿素). The living things form the base of a food web which supports ...
Why is chlorophyll important to Earth's climate system? Why are most plants green? Why does chlorophyll reject green light? Explain why we see the color green on the leaves of plants. Why do grasses contain a higher concentration of chlorophyll?
Grow lights shine purple because they are arrays of bluish and reddish LEDs. And plants are most efficient at absorbing blue and red light. What Color of Grow Light Is Best? should you prioritize blue or red light, or are other colors also useful?
Chlorophyll is what gives plants their green color.可知答案是Chlorophyll. 【3】英汉互译题。本题考查as引导的时间状语从句,根据比较级and+比较级,表示越来越……。可知是故答案是As summer ends and autumn comes, the days get shorter and shorter. 【4】汉译英题。根据go away表示消失;begin to do表示开...