|
|
发表于 11-3-2005 12:46 AM
|
显示全部楼层
|
坛主如果有notes的话我也要我的e-mail lmenwe@yahoo.com。还有我想问Organic Chemistry和Inorganic Chemistry要注重什么？ |
|
|
|
|
|
|
|
|
|
|
|
发表于 11-3-2005 05:59 AM
|
显示全部楼层
-_-...
我讨厌化学..非常非常讨厌. 等我成绩下个星期出来先再说.
化学如果考烂了我下半辈子都不要再提起化学了.
都是老师说什么部分不重要叫我们不用念, 结果就是考出来...被害死了.... |
|
|
|
|
|
|
|
|
|
|
|
发表于 12-3-2005 05:27 PM
|
显示全部楼层
|
|
|
|
|
|
|
|
|
|
|
发表于 13-3-2005 12:10 PM
|
显示全部楼层
|
要读医科系的请注意Ukraine RM100，000－RM300，000，Australia RM500，000，Ireland RM800,000, IMU RM300,000-RM500,000。要进IMU须先交十万。这是我老师说的。 |
|
|
|
|
|
|
|
|
|
|
|
发表于 14-3-2005 03:04 PM
|
显示全部楼层
|
Hai坛主还有其他2004年的STPM考生请问你们考得如何？ |
|
|
|
|
|
|
|
|
|
|
|
发表于 15-3-2005 10:46 AM
|
显示全部楼层
|
|
|
|
|
|
|
|
|
|
|
发表于 15-3-2005 06:50 PM
|
显示全部楼层
|
|
|
|
|
|
|
|
|
|
|
发表于 15-3-2005 11:38 PM
|
显示全部楼层
|
|
|
|
|
|
|
|
|
|
|
发表于 16-3-2005 05:49 PM
|
显示全部楼层
|
|
|
|
|
|
|
|
|
|
|
发表于 16-3-2005 10:27 PM
|
显示全部楼层
|
|
|
|
|
|
|
|
|
|
|
发表于 17-3-2005 12:58 PM
|
显示全部楼层
|
|
|
|
|
|
|
|
|
|
|
发表于 17-3-2005 01:30 PM
|
显示全部楼层
|
|
|
|
|
|
|
|
|
|
|
发表于 17-3-2005 02:33 PM
|
显示全部楼层
真的好想知！
没关系啦，生物可以见人就行了！
几时放 NOTES??
快点！要考试了！
还要是ESSAY N STRUCTURE 而已。
惨，不用睡了。 |
|
|
|
|
|
|
|
|
|
|
|
发表于 17-3-2005 02:55 PM
|
显示全部楼层
which of the following processes do not occur if the supply of carbon dioxide to a green leaf cell is cut in the presence of light?
1.startch is produced
ii ATP is formed
iii NADPH2 is used
iv oxygen is given out
就是说 CALVIN CYCLE 根本没可能发生？？
只有 LIGHT REACTION?
which of the following is the advantage of C3 over C4 plants?
A. Photosynthesis production is more as the number of leaves per plant is more
B. Photosynthesis is more efficient because of wider distribution of leaf veins
C. photosynthesis is more efficient because its chlorophyll content is higher
D. Photosynthesis can occur in very low concentration of carbon dioxide
which of the following pathways are involved in photosynthesis process of C3 plant?
i. Calvin cycle
ii. Krebs cycle
iii. Glycolysis pathway
iv. Hatch-Slack pathway
为什么 carbon dioxide is fixed at night, but the substance is required to be stored in cell vacuoles until day time?? 不能再晚上一起吗？
还有哦，其实C4 plants 等到有太阳时做什么？进行什么？这个地方不明白！ |
|
|
|
|
|
|
|
|
|
|
|
发表于 17-3-2005 11:36 PM
|
显示全部楼层
BluStAr 于 17-3-2005 14:55 说 :
which of the following processes do not occur if the supply of carbon dioxide to a green leaf cell is cut in the presence of light?
1.startch is produced
ii ATP is formed
iii NADPH2 is used
iv oxygen is given out
就是说 CALVIN CYCLE 根本没可能发生？？
只有 LIGHT REACTION?
对. 所以只有前半部生产 ATP 和 NADPH2 的事件发生.
给出 O2 是 photolysis of water 时发生, 算是在 light reactions 里.
Do not occur, 所以答案是 I 和 III.
which of the following is the advantage of C3 over C4 plants?
A. Photosynthesis production is more as the number of leaves per plant is more
B. Photosynthesis is more efficient because of wider distribution of leaf veins
C. photosynthesis is more efficient because its chlorophyll content is higher
D. Photosynthesis can occur in very low concentration of carbon dioxide
D.
which of the following pathways are involved in photosynthesis process of C3 plant?
i. Calvin cycle
ii. Krebs cycle
iii. Glycolysis pathway
iv. Hatch-Slack pathway
就是一般的 dark reaction 啊, Calvin cycle 而已嘛.
Krebs 和 Glycolysis 是 respiration 的.
Hatch Slack 是 C4 的.
为什么 carbon dioxide is fixed at night, but the substance is required to be stored in cell vacuoles until day time?? 不能再晚上一起吗？
还有哦，其实C4 plants 等到有太阳时做什么？进行什么？这个地方不明白！
不要混在一起. 分早上晚上那个是 CAM plant. 它们都生长在热带气候,
为了避免水份过量蒸发, 它的 stomata 早上高温的时候都不开,
只有在晚上的时候开来透透气. 所以就先在晚上存多多的 CO2 在叶子里.,
隔天早上太阳出来, stomata 就关起来了. 然后植物就用昨晚存住的 CO2 来制造食物.
C4 plant 最主要的特征就是它们跟 C3 plant 比较起来, 它们更多生长于低 [CO2] 的地方.
少 CO2, 它们吸气就辛苦, 所以它们多了一个 Krantz anatomy 的系统,
先把植物外的 CO2 存为固体(malic acid)/液体状的化学物(malate),
再直接移动那些化学物到叶子中央参与 Calvin cycle. 效率就提高很多了. |
|
|
|
|
|
|
|
|
|
|
|
发表于 18-3-2005 12:58 AM
|
显示全部楼层
[quote] 雨天之魂 于 17-3-2005 11:36 PM 说 :
对. 所以只有前半部生产 ATP 和 NADPH2 的事件发生.
给出 O2 是 photolysis of water 时发生, 算是在 light reactions 里.
Do not occur, 所以答案是 I 和 III.
你是怎样引用一个一个部分??
干嘛我不行的? 我不会啦!
LIGHT REACTION GOT PRODUCE STARCH MEH?
你给的答案全部和书本的不一样!
没一题对!
我也是觉得有问题才问你.
查查看 PELANGI 的 EXERCISE... 每一课过后的.
我都是那边拿的.
错很多! 不甘心!
[size=-4]P/S: CHEMISTRY 成绩??!!
[ Last edited by BluStAr on 18-3-2005 at 01:01 AM ] |
|
|
|
|
|
|
|
|
|
|
|
发表于 18-3-2005 01:37 PM
|
显示全部楼层
BluStAr 于 17-3-2005 14:55 说 :
which of the following processes do not occur if the supply of carbon dioxide to a green leaf cell is cut in the presence of light?
1.startch is produced
ii ATP is formed
iii NADPH2 is used
iv ...
Light reaction 里没有 I 和 III. |
|
|
|
|
|
|
|
|
|
|
|
发表于 20-3-2005 01:21 AM
|
显示全部楼层
可以大概酱解释 electron transport system mah??
这个最难背了！ |
|
|
|
|
|
|
|
|
|
|
|
发表于 20-3-2005 12:28 PM
|
显示全部楼层
|
请问what is synapse?我有问题问who can explaine the process of neuronmuscular junction ? |
|
|
|
|
|
|
|
|
|
|
|
发表于 20-3-2005 02:45 PM
|
显示全部楼层
BluStAr 于 20-3-2005 01:21 说 :
可以大概酱解释 electron transport system mah??
这个最难背了！
Leong13 于 20-3-2005 12:28 说 :
请问what is synapse?我有问题问who can explaine the process of neuronmuscular junction ?
今晚上来收货. 现在要出去一下. 慢点回来再解释. |
|
|
|
|
|
|
|
|
|
| |
 本周最热论坛帖子
|
1472 
202
