BRARY.
育教僑華真三第張四第日六初月一十年医己愿复、WAH KIII YAT PO報日橋
日期星 日四十月二十年九六九一曆公年八十五國民華内·
HALL
一場鐵 中文中學會考試題預習專欄
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生物科 (六
·莫桐·
生實之兩類無機背 構成原生質2化合物有兩大類 a. 蛋白質是!
$#%$
這類化合物為單位,脫水相連而組成,
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19世紀法へ電稚丼在細胞攣沌創立前数年登理低等 動物細胞內有膠狀物質當時称為原曲質(Sarcode)且 *以為這是一種具有生命性胄的物贸。
是由
比例為
三種元素所组成,其中!”
·故此類化合物亦称為 單醣類最常見者為六碳醣(已醣),其分子式為
糖都是六碳醣,袛因其分子結
NO英文中學會考試題預習專欄
19世紀德~毛南在細胞學說創立後在植物細胞中看到 奥原相学物質命名為やま
堅道英文書院主編 經濟及公共事務科
(六)
糖屬雙醣,其分子式為
3・19世紀德人許爾尋研究各类生活的细胞内都有帮筒
屬多醣,其分子式為:
現象都是由原生質發生的。 19世紀英人赫胥黎對原
原生背是生命的物質基礎
14. 脂肪是由
三種元素所組成。
回更明確的定義既
15.脂肪是
原化合物為罩拉脱水
品
相連而组成
構成原本質基礎有機化合物沸
1澱粉檢定法:
把欲試材料剖開。
苦.結果有紫藍色反應表示有澱粉存在若無上述反應表示 没有澱粉存在。
紫藍色(壊元
沒有紫蓝色
内含澱粉
D-D
表示不
洋葱纖藥
馬鈴薯塊莖
3.葡萄糖檢定法
把战試材料切明磨碎置試骨上如图
加上與材料等量之费令氏甲乙溶液(Fer ling's salu- tion A B)
萄糖存任。
血紅素是出於有機化合物中之
9去氧核糖核酸為染色体要成分2- 其爾萬馬
有密切關係。
2.組成蛋白質之主要元素有
含有少量之
等元素。
1.各生物体中各含有不同之蛋白質此由於租.
但化合物
之不同所致。
2各生物体中各含有不同之脂肪比由於組成脂肪两获化
合物中文
这不同所致。
謂酵素,試舉出其特點。
前期練習解答
2.細胞壁外郎
L5)細胞核比細胞壁重要之新觀念。
(7) SWAL
神經細胞
若結果有磚紅色沈殿,表示有葡萄糖存在,無此反應表示沒有葡
加上與
磚紅色(鐵
氧化銅,由
1駝鳥卵
溶液(含有硫酸) 銅)及乙潘液
葡萄糖之間
(金有氨氧化鈉)
・株還元基本無
産生氛
彰化銅)
沉套
UUUU
蛋白貲檢定法
把欲試材料切開, 置試骨上,如图。
加濃硝酸數滴、微熱之(得到結果1)
3.冷後再加少許氨水(得到結果2)
(1)過濾性毒
中期
订
中止期之細胞
細胞壁
細胞
若結果1為淡黄色凝固体 結果2為橙黃色凝固体如此精 料中確定含有蛋白質若無此反應表示没有蛋白哨存在。
動物細胞
有中心粒,星絲和紡綞緣出現
“分裂末期,由細胞向內凹進
而戌新細胞膜陽開兩個子
細胞。
材料: 凝州体
4橙黃色 凝固体
脂肪質之檢定法
·把材料 切開(若太堅硬者則先浸水數
皇上如图。
磨碎置試:
加上與材料等量之乙醚以棉花緊蓋試管口(勿近火) 摇動之五分鐘後傾出乙醚於錶面蒸發皿上使乙醇 蒸發。
把剩餘物買塗上白纸上
若結果紙上有耐心透明之亮點者由此证明材料含有脂肪 若無此現象者:此表示材料没有脂肪存在。
(1)細胞膜
向耘鰁体)核膜
植物細胞
袛有紋純絲出現
由两子細胞核中的垂絲 向中央收縮而成細胞板後 細胞板分裂為形成细胞壁
(3)中心粒
染色体
(10)核液
(1)细胞核(2)液胞 131.細胞間隙(14) 細胞壁(157喷膜 (4)绿体 (17)粒線体(68):結晶 119)核膜(20) 核 [四]核液 (江21 染色体:23)細胞核(24) 高尔基体(25)液胞膜
液胞
(高尔基体)與細胞分泌有關。
【粒線体)內含多種酵素可以促進体產生各项複雜
的化学变化。
(染色体)支配细胞活動 並為生物遗傳之主要物質。 核
合成蛋白質有問
溶有脂奖 乙醚
乙醚迅速擇發 14 餘下液体液上
紙具有耐久性率 透明之夜點。
(中心体)
構成原生质的主要元素有
共產上種
3.植物细胞含有的贺体有
(核膜】漸漸消失
·球組成多種絲及紡純綠 在分 分為二粒向細胞二極 移動
《染急体在細胞未分裂時為不易看到的線状構造, 乡段细胞分裂時會縮短成一定數目的色 体,其数目因品種不同而置
Aconomio & Public Affairs
Lecture No.6
Answer to the questions in Exercise No. 5.
Question (1): What kind of trade documents are
required by importers for Hong Kong. Produote, and by whom are they resued?
"Answerĭ.
Goods made in Hong Kong need some form of. certificate of origin when they are exported to foreign countries, There are three types of such tradg documente - Comprehensive Certificates of Origin, Commonwealth Preference Certificates, and Standard Certificates of Origin,
C Comprehensive Certificates of Origin are required by the United States of America. Since 1952, the U.S.A. has imposed an anbargo on Chinese goods, Hence, goods from Hong Kong are often: suspected to be originated from China. These Certificates are designed to certify that the goods that we export are made locally the certificates also state from where the materiale of the goods were obtained. Comprehensive Certificates are issued by the Department of Commerce and Industry.
Commonwealth Preference Certificates are required by Great Britain. These certificates entitle Hong Kongta.domestio exporte to. be partially or
· completely exempted from-custome-duty, The麻等。 Certificates are also issued by the Department of Commerce and Industry. Standard Certificates of Orxgin ara required. by countries. except the United Kingdom and the United States of America. These Certificates state that our exports are made or assembled in Hong Kong and they certify. the absence: of forgery or falsification on the part of local manufacturers or local exportere. These certificatee ara issued by the Department of Commerce and Industryi the Hong Kong General Chamber of commerce, the
Indian Chamber of Commerce, and the Federation of Hong Kong Industries.
Question (2): Describe the functions and work of the
frade Development Council,
Answer!
The domestic exporte of Hang Kong Ton the year 1969 are expected to top over $10,000, 000 add thi趁 truly reflects the achievement of one of the Organizations that are involved in the promotion OL
our foreign trade - the Trade Development Council.
Established in 1966, the Trade Development.
council as charged with the chief function of
promoting, assisting and developing our foreign trade, in particular our domestic exports.
The Council is also responeible in seeing that. our economic resources are co-ordinated and used for the maximum benefit of promoting our trade. In this respect, the Council is keen to organize trade missions to publicise our products in overseas
countries. Representatives from local industry are often included in these trade missiona, The Council
has also encourage local manufacturers to participate. in trade fairs. Expo 70 to be held in Osaker is the latest trade fair in which our participation is Maxpected to help inorease our already flourishing
domestic exports,
COMETIMES. It is necessary to introduos aone form of measures to counteract t any restrictions imposed on our exports by foreign countries, Changes of political or economic policies of any foreign country may affect our exporta adversely, To keep an eye on these changes is another function of the Council. Besides, the Council can advise Government and private industrialista what actions they can take to stabilize and increase our trade.
The Council has established many resident re- presentatives in many countries throughout the worla East and Central Africa, Europe, America, Austral: United i Kingdom, New Zealand, France "and others" whereby the council pan keep itself abreast of the lateat economic and social developmente in the various parts of the world. It can also at the same time keep the world informed of our industry.
rne errorts or our businessmen and those of Government directed towards trade promotion activitien are sometimes in duplication and at other times run in different directions. To co-ordinate their effort. towards a joint trade promotion programme is another important function
function of the Trade Development Council. working with the other equally, important tr
trade bodies, the Trade Development Council has successfully put Hong Kong on the trading map of the world, an achievement which must have amazed the outside world.
Exercise No.7
Give an account of tab venerit that may
derived from international trade.
2. Write notes ons
(A) The Festival of Hong Kong
(B) Road Safety
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