[DSE生物2018］Bio討論區

1001 回覆
24 Like 9 Dislike
2018-04-02 21:10:28
上年我心諗依個人胸有成竹咁，又串過碼頭咕喱，唔係入mbbs就係入g bus啦，好彩唔係同一年考
點知... 可能佢今年入得返mbbs呢，prep咗咁耐
2018-04-02 21:14:42
我唔係想笑佢

我真心想知佢有無入黎溫書
2018-04-02 21:38:47
Some questions from AL pastpapers (selected questions). Answers will be posted shortly.
自問胸有成足、有志擇星、溫晒書，先好睇。歡迎討論。

2012 Paper 1A






2013 Paper 1A



2018-04-02 21:51:44
我會浸水 + high T
No O2 + enzyme permanently denature
2018-04-02 21:54:36
Heterogenous characteristics係咪指phenotype is seen in heterogeneous individual?
2018-04-02 21:56:08
加檸檬汁 citric acid denatures PPO同埋浸鹽水 令到個enzyme dehydrate due to osmosis得唔得
2018-04-02 21:58:04
EnZyme is just a protein - non living stuff
唔會dehydrate
2018-04-02 21:58:15
喺一個daily setting入面似乎唔太可行，例如inhibitor點嚟, 果個inhibitor係咪食得落肚。
2018-04-02 21:58:38
整舊山埃
2018-04-02 21:59:35
食死埋Cindy
2018-04-02 22:00:25
檸檬汁可能得
但dse無提過pH點影響enzyme activity

我其實都唔太清楚點影響，我因此唔會寫我唔確定既野
2018-04-02 22:02:00
你可以理解為different degrees of severity
2018-04-02 22:03:36
即係點？
我晏就游完水有諗過下

如果heterogeneous expressed
-> dominant allele

但繼續推落去會錯，得唔到點解女人會rare
2018-04-02 22:04:51
普通就咁浸水加保鮮紙得唔得 阻隔O2 dissolves in water
2018-04-02 22:09:03
the gene causing the disorder is located on the X chromosome
2018-04-02 22:12:47
Answers

2012 Paper 1A



2013 Paper 1A

2018-04-02 22:13:33
呢點我明白既

2分
-> female have X X chromosomes
-> which provide a greater chance to mask the effect of diseased allele

只不過我諗極諗唔明以上推論係唔知diseased allele is dominant or recessive 情況下點得出female “rare”
2018-04-02 22:13:55
可以
2018-04-02 22:15:50
Lemon juice得，rationale比較難寫，dse level expression係change the shape/conformation of the active site
2018-04-02 22:17:47
我無印象有學過呢樣野

咁alkaline sol得唔得架？我唔知protein in acidic alkaline environment 會變成點
2018-04-02 22:19:42
X linked 仲要dominant 其實十分之少
尤其是呢D死得人既遺傳病
不過題目可以講多句既
2018-04-02 22:21:48
原來如此

你不如講埋fat個個@@
唔記得曬glucose metabolism
2018-04-02 22:23:23
你答埋TCA cycle先啦
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