there are 2 set up
set up a :test tube內有lime water, soaked and sterilized germinating seeds
set up b::test tube內有lime water, boiled and sterilized germinating seeds
Q:
1)wt is the use of lime water?
2)y are the germinating seeds in set up a soaked and sterilized before the experiment?
bio F.3 questions~{急!!!!!!! 請幫手!!plz~}
2007-05-14 1:47 am
回答 (2)
2007-05-15 2:56 am
✔ 最佳答案
(1)check the presence of carbon dioxide
(2)
soaked:
water is needed for germination of seeds / keep the seeds alive
sterilized:
prevent any impurites on the surface of the seeds which will affect the result
for example, microbe which carry respiration
參考: me*
2007-05-14 1:53 am
1. absorb carbon dioxide
2. soaked : to provide water for germenation
sterilized : to kill micro organisms that carry out respiration
2. soaked : to provide water for germenation
sterilized : to kill micro organisms that carry out respiration
收錄日期: 2021-04-12 20:24:54
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070513000051KK03631