2017 DSE Bio 討論區(2)

Kreb cycle 嗰d係咪for aim5或以上既人攞分

I would say Genetics

2016 e4 q4a wtf

做乜？

Kreb cycle 嗰d係咪for aim5或以上既人攞分

I would say Genetics

唔好放棄Genetic ah
特別係Deduce genotype嗰啲，嚟嚟去去都係嗰個flow!
Btw 仲有兩日，大家要加油

Kreb cycle 嗰d係咪for aim5或以上既人攞分

I would say Genetics

唔好放棄Genetic ah
特別係Deduce genotype嗰啲，嚟嚟去去都係嗰個flow!
Btw 仲有兩日，大家要加油

反而plants 同coordination and response唔熟

點分 chromatids,chromosome and chromatin?

樓主上個po有答過

3. Chromatins: very tiny threads which cannot be seen when the cell is not dividing
Chromotid: one of the copies of the chromosome if the chromosome is replicated.
Chromosome: two chromatids (having two copies of DNA) join together after replication, or just one (having one copies of DNA) after sister chromatids separation

其實上個Post有位Merlot巴打另外有講：
Chromosome係睇centromere。換言之，right after DNA replication，兩個chromatids痴住同一個centromere，所以就視為一個chromosome。Sister chromatids separate之後，每個sister chromatids都有一個centromere，所以喺呢個stage，佢哋係被視為一個chromosome。

thxx

2016 e4 q4a wtf

做乜？

i ii 都唔關e4事

完全唔明

2016 e4 q4a wtf

做乜？

i ii 都唔關e4事

完全唔明

好簡單嘅Core嘢嚟炸喎
唔好一見唔關E4事就覺得自己冇學過

2016 Paper 2 條條都滲左少少core

有無巴打可以幫手改我份2016 paper 1 我想試下double marking

有無巴打可以幫手改我份2016 paper 1 我想試下double marking

我都可以嘅，不過要晏少少先方便改。
你放上嚟比大家睇o唔ok?
比巴絲們順便學習下

唔記得咗中文卷可唔可以就咁寫ATP/NADH/ADH

https://drive.google.com/open?id=0B8NL0r-R-NIPa19zQ0poMTQxc00

My paper has uploaded with marking scheme attached

Kreb cycle 嗰d係咪for aim5或以上既人攞分

I would say Genetics

唔好放棄Genetic ah
特別係Deduce genotype嗰啲，嚟嚟去去都係嗰個flow!
Btw 仲有兩日，大家要加油

How about kreb cycle

https://drive.google.com/open?id=0B8NL0r-R-NIPa19zQ0poMTQxc00

My paper has uploaded with marking scheme attached

Well done bro 66/84

https://drive.google.com/open?id=0B8NL0r-R-NIPa19zQ0poMTQxc00

My paper has uploaded with marking scheme attached

Well done bro 66/84

😘thx bro

如果CE mc大約43-46/60
dse mc大約22-24/36
應該咩grade

如果CE mc大約43-46/60
dse mc大約22-24/36
應該咩grade

3-4

其實唔係broad and flat leave has large surface area for gas exchange 但2016個份話係numerous air space

最後兩日可以點 notes又溫左一次 pp又做左
重溫多次notes定點

你aim幾多先? pp做完又幾多成分?

同問
Aim 5*, DSE past paper + AL 2002-2013 +2005後CE 做晒
仲可以做乜

做到咁，咁你仲差咩先5**，點解唔aim 5**
你重溫返啲你錯左嘅題目啦
由其嗰啲明明識但唔中point嗰啲位

我個人好粗心大意，做左咁多份都係喺5-5*浮游.....
大部份錯過嘅都係嚟幾日重温左，大部份都岩得番，但essay特別弱，成日捉唔緊啲字眼，答到離曬題，除左上個post compare and contrast外，仲有咩特別字眼？

而家呢個時候應該操卷定睇書

最後兩日可以點 notes又溫左一次 pp又做左
重溫多次notes定點

你aim幾多先? pp做完又幾多成分?

同問
Aim 5*, DSE past paper + AL 2002-2013 +2005後CE 做晒
仲可以做乜

做到咁，咁你仲差咩先5**，點解唔aim 5**
你重溫返啲你錯左嘅題目啦
由其嗰啲明明識但唔中point嗰啲位

我個人好粗心大意，做左咁多份都係喺5-5*浮游.....
大部份錯過嘅都係嚟幾日重温左，大部份都岩得番，但essay特別弱，成日捉唔緊啲字眼，答到離曬題，除左上個post compare and contrast外，仲有咩特別字眼？

再specific啲嘅字眼你真係要refer to AL essay 逐條睇marking。

而家呢個時候應該操卷定睇書

呢個時候suppose你要操晒卷、溫啲細位
假如你有concept唔明就睇書啦，然後再做pp 啦

而家呢個時候應該操卷定睇書

呢個時候suppose你要操晒卷、溫啲細位
假如你有concept唔明就睇書啦，然後再做pp 啦

小弟一直對細胞分裂同遺傳物質唔熟
請問呢條2015 Q2c，子細胞的DNA含量
點解答案係「減數分裂時，同源染色體在赤道配對並各自分離至子細胞，有絲分裂則不會」既？
咩減數分裂唔係第一次分裂個時，子細胞係2N，第二次先係1N咩？
我答左「有絲分裂前遺傳物質複製，減數分裂前遺傳物質不會複製」
中文JJ希望樓主唔好介意同歧視

Btw想問下減數分裂同減數細胞分裂既分別

其實e2係咪單純靠common sense