我都幾肯定e2今年會拉好重
唔一定 睇埋整體表現
我覺得今年考生應該無乜人會高過16分
2017 DSE Bio 討論區(2)
呀肥
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我覺得今年考生應該無乜人會高過16分
比較難中
可能你岩都未定
Should be constant rate of respiration
And photo rate > respiration rate
可能係
The assumption is all amount of oxygen released is equal to amount of oxygen from photosynthesis no oxygen will be consumed for respiration
咁點樣modify
因為light independent
-> only light source
-> 我寫左cover the whole set up with black curtain
-> to prevent interfering source of Light
Replace water with standard bicarbonate solution
So the photosynthetic rate will not be affected by decrease of carbon dioxide concentration in water
但佢而家唔係要test CO2 bor
The independent variable is light , not co2 concentration
因為chem就知
CO2（g) <> CO2(aq)
Co2 唔會變limiting
CO2（g) <> CO2(aq)
Co2 唔會變limiting
比較難中
可能你岩都未定
Should be constant rate of respiration
And photo rate > respiration rate
可能係
The assumption is all amount of oxygen released is equal to amount of oxygen from photosynthesis no oxygen will be consumed for respiration
咁點樣modify
因為light independent
-> only light source
-> 我寫左cover the whole set up with black curtain
-> to prevent interfering source of Light
Replace water with standard bicarbonate solution
So the photosynthetic rate will not be affected by decrease of carbon dioxide concentration in water
但佢而家唔係要test CO2 bor
The independent variable is light , not co2 concentration
佢將個 CO2 conc keep constant, 咁唯一independent variable 就係light
可能係
The assumption is all amount of oxygen released is equal to amount of oxygen from photosynthesis no oxygen will be consumed for respiration
咁點樣modify
因為light independent
-> only light source
-> 我寫左cover the whole set up with black curtain
-> to prevent interfering source of Light
Replace water with standard bicarbonate solution
So the photosynthetic rate will not be affected by decrease of carbon dioxide concentration in water
但佢而家唔係要test CO2 bor
The independent variable is light , not co2 concentration
佢將個 CO2 conc keep constant, 咁唯一independent variable 就係light
咁即係要改bicarbonate?
因為chem就知
CO2（g) <> CO2(aq)
Co2 唔會變limiting
consumption rate 可以大過 dissolve rate. 的確唔少書入面呢個實驗都有類似set up.
比較難中
可能你岩都未定
Should be constant rate of respiration
And photo rate > respiration rate
可能係
The assumption is all amount of oxygen released is equal to amount of oxygen from photosynthesis no oxygen will be consumed for respiration
咁點樣modify
因為light independent
-> only light source
-> 我寫左cover the whole set up with black curtain
-> to prevent interfering source of Light
Replace water with standard bicarbonate solution
So the photosynthetic rate will not be affected by decrease of carbon dioxide concentration in water
但佢而家唔係要test CO2 bor
The independent variable is light , not co2 concentration
佢將個 CO2 conc keep constant, 咁唯一independent variable 就係light
light intensity應該係唯一independent
The assumption is all amount of oxygen released is equal to amount of oxygen from photosynthesis no oxygen will be consumed for respiration
咁點樣modify
因為light independent
-> only light source
-> 我寫左cover the whole set up with black curtain
-> to prevent interfering source of Light
Replace water with standard bicarbonate solution
So the photosynthetic rate will not be affected by decrease of carbon dioxide concentration in water
但佢而家唔係要test CO2 bor
The independent variable is light , not co2 concentration
佢將個 CO2 conc keep constant, 咁唯一independent variable 就係light
咁即係要改bicarbonate?
Standard sodium hydrogencarbonate solution with constant carbon dioxide concentration so there will be steady and consistent carbon dioxide supply to plant so the photosynthetic rate changes is due to changing light intenisty only not carbon dioxide
The assumption is all amount of oxygen released is equal to amount of oxygen from photosynthesis no oxygen will be consumed for respiration
咁點樣modify
因為light independent
-> only light source
-> 我寫左cover the whole set up with black curtain
-> to prevent interfering source of Light
Replace water with standard bicarbonate solution
So the photosynthetic rate will not be affected by decrease of carbon dioxide concentration in water
但佢而家唔係要test CO2 bor
The independent variable is light , not co2 concentration
佢將個 CO2 conc keep constant, 咁唯一independent variable 就係light
咁即係要改bicarbonate?
Standard sodium hydrogencarbonate solution with constant carbon dioxide concentration so there will be steady and consistent carbon dioxide supply to plant so the photosynthetic rate changes is due to changing light intenisty only not carbon dioxide
我諗有diffused light
所以唔係one variable ja
所以唔係one variable ja
咁點樣modify
因為light independent
-> only light source
-> 我寫左cover the whole set up with black curtain
-> to prevent interfering source of Light
Replace water with standard bicarbonate solution
So the photosynthetic rate will not be affected by decrease of carbon dioxide concentration in water
但佢而家唔係要test CO2 bor
The independent variable is light , not co2 concentration
佢將個 CO2 conc keep constant, 咁唯一independent variable 就係light
咁即係要改bicarbonate?
Standard sodium hydrogencarbonate solution with constant carbon dioxide concentration so there will be steady and consistent carbon dioxide supply to plant so the photosynthetic rate changes is due to changing light intenisty only not carbon dioxide
但點睇有diffused light 呢個variable?
I said photophosphorylation produces ATP for regeneration of 4-C carbon dioxide acceptor and conversion of 3-C compound into triose phosphate in carbon fixation
Photolysis of water produces NADPH which acts as a reducing agent to donate hydrogen to triose phosphate so triose phosphate is reduced
覺得我會扣兩分定一分
Photolysis of water produces NADPH which acts as a reducing agent to donate hydrogen to triose phosphate so triose phosphate is reduced
覺得我會扣兩分定一分
因為light independent
-> only light source
-> 我寫左cover the whole set up with black curtain
-> to prevent interfering source of Light
Replace water with standard bicarbonate solution
So the photosynthetic rate will not be affected by decrease of carbon dioxide concentration in water
但佢而家唔係要test CO2 bor
The independent variable is light , not co2 concentration
佢將個 CO2 conc keep constant, 咁唯一independent variable 就係light
咁即係要改bicarbonate?
Standard sodium hydrogencarbonate solution with constant carbon dioxide concentration so there will be steady and consistent carbon dioxide supply to plant so the photosynthetic rate changes is due to changing light intenisty only not carbon dioxide
但點睇有diffused light 呢個variable?
其sum of protons from lamp and surrounding is proportional to photosynthetic rate
As light intensity from surrounding should be constant
Replace water with standard bicarbonate solution
So the photosynthetic rate will not be affected by decrease of carbon dioxide concentration in water
但佢而家唔係要test CO2 bor
The independent variable is light , not co2 concentration
佢將個 CO2 conc keep constant, 咁唯一independent variable 就係light
咁即係要改bicarbonate?
Standard sodium hydrogencarbonate solution with constant carbon dioxide concentration so there will be steady and consistent carbon dioxide supply to plant so the photosynthetic rate changes is due to changing light intenisty only not carbon dioxide
但點睇有diffused light 呢個variable?
其sum of protons from lamp and surrounding is proportional to photosynthetic rate
As light intensity from surrounding should be constant
但佢而家唔係要test CO2 bor
The independent variable is light , not co2 concentration
佢將個 CO2 conc keep constant, 咁唯一independent variable 就係light
咁即係要改bicarbonate?
Standard sodium hydrogencarbonate solution with constant carbon dioxide concentration so there will be steady and consistent carbon dioxide supply to plant so the photosynthetic rate changes is due to changing light intenisty only not carbon dioxide
但點睇有diffused light 呢個variable?
其sum of photons from lamp and surrounding is proportional to photosynthetic rate
As light intensity from surrounding should be constant
比較難中
可能你岩都未定
Should be constant rate of respiration
And photo rate > respiration rate
可能係
The assumption is all amount of oxygen released is equal to amount of oxygen from photosynthesis no oxygen will be consumed for respiration
咁點樣modify
因為light independent
-> only light source
-> 我寫左cover the whole set up with black curtain
-> to prevent interfering source of Light
Replace water with standard bicarbonate solution
So the photosynthetic rate will not be affected by decrease of carbon dioxide concentration in water
I said photophosphorylation produces ATP for regeneration of 4-C carbon dioxide acceptor and conversion of 3-C compound into triose phosphate in carbon fixation
Photolysis of water produces NADPH which acts as a reducing agent to donate hydrogen to triose phosphate so triose phosphate is reduced
覺得我會扣兩分定一分
應該寫到nadph atp點produce有兩分
點用有2分
仆街啦 佢會tick conversion of 3 C compound to triose phosphate 而唔睇前面regeneration
咁點樣modify
因為light independent
-> only light source
-> 我寫左cover the whole set up with black curtain
-> to prevent interfering source of Light
Replace water with standard bicarbonate solution
So the photosynthetic rate will not be affected by decrease of carbon dioxide concentration in water
但佢而家唔係要test CO2 bor
The independent variable is light , not co2 concentration
佢將個 CO2 conc keep constant, 咁唯一independent variable 就係light
咁即係要改bicarbonate?
Standard sodium hydrogencarbonate solution with constant carbon dioxide concentration so there will be steady and consistent carbon dioxide supply to plant so the photosynthetic rate changes is due to changing light intenisty only not carbon dioxide
但點睇有diffused light 呢個variable?
我覺得考評局主要想人答diffused light掛
NaHCO3 solution通常教科書都好少講咁深
I said photophosphorylation produces ATP for regeneration of 4-C carbon dioxide acceptor and conversion of 3-C compound into triose phosphate in carbon fixation
Photolysis of water produces NADPH which acts as a reducing agent to donate hydrogen to triose phosphate so triose phosphate is reduced
覺得我會扣兩分定一分
應該寫到nadph atp點produce有兩分
點用有2分
仆街啦 佢會tick conversion of 3 C compound to triose phosphate 而唔睇前面regeneration
應該係用黎reduce 3c to tp
同埋regeneration to 5c co2 acceptor
兩分無左？ but ATP has two uses wor will they tick for either one
垃圾補習佬唔夠膽出MC ans
I said photophosphorylation produces ATP for regeneration of 4-C carbon dioxide acceptor and conversion of 3-C compound into triose phosphate in carbon fixation
Photolysis of water produces NADPH which acts as a reducing agent to donate hydrogen to triose phosphate so triose phosphate is reduced
覺得我會扣兩分定一分
應該寫到nadph atp點produce有兩分
點用有2分
仆街啦 佢會tick conversion of 3 C compound to triose phosphate 而唔睇前面regeneration
應該係用黎reduce 3c to tp
同埋regeneration to 5c co2 acceptor
早知唔好手多寫4-C