【補充資料】光合作用的產物水哪裡來?
光合作用的反應式為6H2O+6CO2→12H2O+6O2+C6H12O6,而其中產物的水到底怎麼來的呢?
由科學寫作部落格voice in void網站中有深刻討論,有興趣的同學可點以下連結!
http://voiceinvoid.wordpress.com/2012/10/25/h2o_production_in_photosynthsis/
光合作用的反應式為6H2O+6CO2→12H2O+6O2+C6H12O6,而其中產物的水到底怎麼來的呢?
由科學寫作部落格voice in void網站中有深刻討論,有興趣的同學可點以下連結!
http://voiceinvoid.wordpress.com/2012/10/25/h2o_production_in_photosynthsis/
喜歡唱歌的同學有福了,國外有網友將光合作用過程編成rap,唱完之後不僅可以搞懂光合作用,連英文都可以考100分呢!
以下為師大附中的同學翻譯的中文字幕版本,如果想要看原文影片的網址如下:http://www.youtube.com/watch?v=pE82qtKSSH4
(生物RAP-光合作用,YouTube影片,原作者ImThankfulForBiology,音樂Rythm, Rhyme & Results,中文翻譯蔡昱安)
歌詞:(取自原影片網頁)
Chorus
Photosynthesis, lets get into this
Discussion of sunlight, and transfer of energy.
Photosynthesis, lets get into this
Process of chemical reactions and synergy.
Verse I
Plants take water, sun, and CO2,
to make glucose: the sugar that they use for food
They also put oxygen into the air
So we can share, because oxygen is everywhere
The energy transforms from solar to chemical
All the time, everywhere, the process is identical
In every plant, and every tree
Enabling all living things to be
Chorus
Verse II
Lets take a look at the light reaction
Making chemical energy when light is captured
electrons flow through the photo systems
Flowing so fast you might have missed em
Within the chloroplast lies the action
The thylakoid membrane is where it happens
ATP and NADPH
Are products of light, water, air, and space
Chorus
Verse III
The Calvin cycle, or dark reaction
Doesnt need direct sunlight for it to run right.
CO2 from the air enters the chloroplast
Mixing with organic molecules for the last time
With the help of the enzyme Rubisco
Carbon Fixation—I thought you knew this yo!
It forms a carbohydrate known as G3P
Its created, recreated, and recycled you see
Chorus
Bridge
Leaves on trees and even weeds meet needs
Making oxygen we need to breathe
You want to learn it with ease? You want to master the keys?
Its photosynthesis, listen to this please
Chorus
將水草放入水中並且照光一段時間後即可看到葉緣浮出許多小氣泡。
這些氣泡其實是光合作用光反應第一步:光水解作用所產生出來的氧氣。
有興趣的同學也可以利用家中的水草試試看囉!
影片可配合光合作用、細胞代謝等章節。
(看得見的植物光合作用(二),YouTube影片,作者Kelly Chang)
來自BBC所拍攝的紀錄片《LIFE》片段,說明維納斯捕蠅草(Venus Flytraps)的捕蟲機制。
可配合生命現象、植物傾性運動等章節。
(Life - Venus Flytraps: Jaws of Death - BBC One,YouTube影片,作者BBS)
由美國當代重要生物學家愛德華‧奧斯本‧威爾森所著,寫出了他如何進入科學界,遭遇哪些困難,從中又學習到了什麼。目前的你可能不知如何面對科學,目前的你可能熱愛卻又害怕做研究,目前的你可能在研究中遇到了瓶頸,都可以看看這位前輩的意見!
書中提到了威爾森給年輕科學家的建議:
「以熱情支持訓練。不論用什麼方法,找出你在科學、技術或其他相關領域中最想作的事情,在這份熱情還沒消失之前,盡力順從它,吸收所需的知識來使心智成長;同時還要涉獵其他項目,廣泛修習一般科學課程,如果有更吸引你的東西出現了,要機靈地適時切換跑道。切記,不要在科學課程中隨波逐流,還指望真愛會自動找上門來,這也許會發生,但我勸你別冒險。就如同你一生中必須面臨的其他重大關頭一樣,處處都有危機,然而,順從熱情所作出的抉擇和努力絕對不會讓你失望。」
圖書資訊:
作者: 愛德華‧奧斯本‧威爾森
原文作者:Edward Osborne Wilson
譯者:王惟芬
出版社:聯經出版公司
出版日期:2014/01/22
相關網站:
三民網路書店《給青年科學家的信》介紹網頁。http://www.sanmin.com.tw/activity/2014/0123young_scientist/index.asp
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