[DSE生物2018］Bio討論區

Practice paper出過啦，alkaline應該都得，不過daily setting多數都係用醋啦，最common

唔係好明gene嗰條7b答案係點解

essay有咩大熱有冇人tip下
望5

好啦, 開估:

2) There will be excessive accumulation of pyruvate since conversion to acetyl-CoA is hindered; which then preferentially undergoes the anaerobic cellular respiration; producing excessive lactic acid. (1+1+1)

3) Fat provides an alternative source of energy to glucose (through beta-oxidation ?out syl);which by-passes the glycolytic pathway involving pyruvate (to produce acetyl-CoA) (1+1)

3）真心唔知lol

不過都學到野

TCA cycle 唔係DSE有教咩?

Beta oxidation 咩involving pyruvate dse 真係無

所以我先叫你講下fat個個rationale

Increase water potential in blood
幾時就咁答smaller amount of water is reabsorb (in proximal convoluted tubule )
幾時要答ADH

i or ii?

both

Increase in water potential in blood -> detected by osmoreceptor in hypothalamus -> pituitary gland secrets less ADH -> wall of collecting tube becomes less permeable to water -> smaller proportion of water is reabsorbed -> increase in urine volume

Fatty acid可以唔洗經pyruvate入TCA cycle

大家加油 bio / chem野都係好煩既東西

上到黎，特別想讀醫療科 祝你好運

唉 點解人體咁麻煩

訓先 頭暈啦

有無覺得讀錯科 biochem
Pharmacology

加油。

推 溫到好無望

i
如果係兩個base構成一種codon，並不足夠form 20種不同嘅amino acids。
(Number of types of codon = 4 x 4)

如果係三個base構成一種codon，足夠有凸去form 20種不同嘅amino acids。
(Number of types of codon = 4 x 4 x 4)

所以好可能係三個base構成一種codon。

ii嗰答案真係好直接，唔知可以仲點解釋，你唔明邊個位？

唔洗刻意去tip essay啦，你睇下有乜topic自己唔熟好過

姐係ii係係咁試晒啲mRNA去搵邊個codon code for邊種amino acid？

好似識嗮
又好似乜都唔識咁

Exactly

我而家終於明呢句

讀緊既野搞到我好暈 睇番dse bio而家好多又唔記得

成個人好似廢左好多咁

thanks

屌 淨係溫撚左4篇範文咋仆街
今舖真係all in bio

範文study leave冇掂過