頁二第張五第日三初月三年辰丙饜夏
罗僑榮
1976中學會考試題預習專欄
生物科(一)
卓唐慕儀
#21
BIOLOGY
REVISION TEST 4: Suggested answers.
la. 1. By plunging the leaves into boiling water for several minutes, the protoplasm is tilled.
ii. Alcohol removes the chlor ophyll from the leaves. -
To carry this out effective- ly, the alcohol should stand. in a beaker of hot water. ) iii. Washing will remove any trace of alcohol, but more im- portant, it softens the leaves as they tend to be brittle after the alcohol bath.
141 Leaf A was coloured brown Leaf B was coloured bluish black.
Since Leaf A was enclosed in a beaker of caustic soda, any-00, in the air or that produced as a result of res- piration would have been diam solved in it. Thus, deprdeved of the CO, needed in the food making process of photosyn~ thesis, Teaf A was unable to make any food and so no starch wae made. So, on testing for. starch, it showed a negative reaction. Fe 34
Since Leaf B was surrounded by air and being green, it carried out photosynthesis in the pres ence of light and made. carbo hydrates which is stored as atarch, So on testing for starch, it showed a positive reaction.
Keeping it in the dark for.
the plantie, enabling the
24 hours je a way of deutarching.
starch made to be transle-
cated, to other places for in-
mediate use or for storage. In
this way, all: leaves would con- tain no starch at start of experiment.
Be sure all leaves contain ne starch, test one leaf first. before setting. up the appara- tus; keep plant well watered and in
equal illumination from all
WAH KIU YAT PO
siues; and,
郭日僑華
五期星
do not allow CO in air from reaching leaf A.
2.A.Chloroplasts are minute spheri
cal or discoid masses of pros toplasm embedded within the cytoplasm.. The body of the chloroplast consists of a spongy mass of protoplasm the interatices of which are occu pied by more fluid protoplasm, within which dissolved. the: green:pigment.
Its functions are to build up. sugar from CO and HO and to.
convert sugar into starch, Chlorophyll is a compound of CH.ON & Mg. It can be formed only in the presence of iron
It contains a mixt- and light.
ure of 4_pigments, chlorophyll A( blue-green), chlorophyll B (green), carotin (orange) and xanthophy11: (yellow).
Its function is to absorb ra diant energy from sunlight so that the chloroplast can use the CO, and Hyo to form care bohydrates.
Green plant converts some of the energy of sunlight into chem- ical energy during photosyn- thesis. This is used to combine. CO, and H.0 into sugar molecules, monosaccharide sugars, which may be atored as disaccharide. sugers or made into protein. The high-energy foods man obta... ins from green plants includes glucose sucrose, starch, pro- tein and oils. Since, man is an omnivore, this may be ob- tained directly in the vege tables we eat or indirectly in the flesh of animals which eat green plants.
•
Before energy becomes available to man, 4 processes are in- volved: ingestion, digestion absorption and respiration. 4 (N.B. details of each pro- dess amould then be dealt with.)
1976中學會考試題預習專欄
物理科(十一) 何耀明
PHYSICS (29)
`Solution for last week
(a) Two factors: which affect the veloci-
ty of sound are
(i) the transmitting medium; and
(ii) the temperature of the transmitt-
ing medium.
(b)(i) The velocity of sound in air
·682·
341m/s
d(Absolute Temperature
V2.
日二月四年六七九一屆公年五十六國民華中 週一台電育教
「Velocity of Bound (+)}
(ii) The angle:nf dip. at the magnetic
enuator is zero.
(iii) The angle of dip at the magnetic
poles of the earth is 90
(iv) Refer to the figure below, R re-
presents the total flux intensity at a point on the earth's surface, and d', the angle of dip that makes with the horizontal in a vertical plane through R. Since BOCA·B·à rectangle,
therefore
2 = 3310/6 741m/s.
the temperature of air
341, 2(273) K
289.7 K = 16.7°C - Anis.
(iii) The distance between the ship
341mm and the cliff =(341) (41) =
the distance between the cliff and the ahore. 341 +682
=
1023m
The north pole of the magnet indus ces magnetic poles in the steel pins
south poles at A. and C.and north. poles at B and D. The points A and C are anchored on the maget, but B and Dhang, freely. The repulsion of the like poles at B and B will therefore cause the pins to the diagram
N
::: verge as shown in
A
(b) The soft iron is also called keepi
erk, They are placed across the
poles of the two magnets. They are parallel, and have unlike poles fac- ing each other. The keepera A and B. both become magnetized, and their do− mains and those of the bar magneta together form a "cloaed, chain" This is a stable formation, and the domains in the bar magnets thus remain in a straight line as long
as the keepers are in position. The magnets thus retain
their magnetism.
N
-keeper:
3(i) If a magnetic needle is freely. ana pended, it will always set itself along a fixed direction. This sugg ested that the earth has its own mage netic field and the total intenalty. of the earth's magnetic field is.
The free- along the fixed directione
ly suspended magnet will not set ho- rizontally but in general it makes an angle with the horizontal. Thisan- gle varies from place to place and is called the angle of dip.
horizontal
earth's
magnetic
field
yand
tan d =
horizontal component (H)
0.
Total flux
intensity
Vertical component (V)
Question for next week The following three figures show a posi- tive charged body is brought near to an electroscope Mark on the diagrams (b) and (c) tò show the behavior of the gold (The leaf and give a simple conclusion. first diagram (a) is already completed)
Case at
cap⋅
potential
(b)
zero., potential
insulator
Multiple Choice Question: 2. Ae figures: What is
the sign of the char- tes on position X,Y,
B.
D.
leaf and cuse connected by wire
3. In fig. Xand Y are two quapended.
aulated metal spheres which are in con- tace and a positively charged rod is brought near to sphere X
A.
A
B.
00
None of
the above
故事一小五菱之白菊花
獅子山下今播「賭」
- 由蘇廷之編導,何楚
下週推出另一劇「鼠患 本月份在三台映出 齒健身强
月身
初强
播 包四菊 期八二〇一第
兼回花
李莫英)。
芳》,十時十分「潮 「京曲」:宇宙鋒(梅關
[海狂僭」;何非凡、
·白的榮,紅綾女。]
「吹氰嗚。「登上路」
「費花」·陳妊絪,洗劍
(1)下午三脚
合粤曲精選:四月番 拨合第一台及第1!
粵曲精選
〔主持人黃小感小影
羅孔惠執導的「風」,是呼市民注意城市智课-劃中人刺客滿手汰 實惑。致下一週「獅子山下」爲载案推出的另一個電視劇,是由青年楣逐 一片」,這就是爲什麼「獅子山下」這節目每一集的-
滿了人传味友有此 一話,除略有批評外,亦時加力讚。也由於節日本自能够做到與觀衆「打成 會接受外間意見批評。經常一個視製播出後,他們會接到觀衆來幣或電 掘一些現實題材,作爲「警世」之作。通常節自監製張敏儀,編導羅孔惠 众敬。劇情感人,正是在今日逝風大盛下一面鑱下。「獅子山下」盡量。節目最後十分鐘,爲導。 市上有母親,下有弟妹。由於父親早衰,家計靠宵不雅持,他公餘悉心教|醫會派出醫生選第一恃有慮增加,有獎問答,
·月荷、良品、薰觀度等。虧惝描述賭密:白領青,原生長於一屭安家庭一台播出。每次由香港牙齒盤身國節日,並且會 【錦麗娟演出;其他演員,除港台括劃祖以林友榮及尹多明 - 及 基本演員李,虽期五晚七時一刻第一,由黃小原主持。同時, ,分在冠的及佳福播出。播出的一套是「瞎」:由麗的第一期訓練班藝員。在四月1!日開始 - [四七】一郎可。鵲節目 ..「獅子山下」四月份播快時間,三晚八降港視悉出,四晚七時又九時·港牙醫學會與港合合舞般電話:九龍方三 送因虧空公歇而救失業」最令他煩惱者,就是他們的弟妹從此已不再對他 亲解答有關牙贵的問題目播出時,主持人之毅|嬴期日)時一刻 「京 據弟妹,希望能扶持成材。可是因耳濕目染,與友伴習上「貼」的陋習,別難鬆,同時即降爲娘则案可留意四月二日產 | 出時間:四月四日晚千歲。四月五日 C 「並儘身拉」由香,接長詢問時間。讓樂可 各地作曲
特播音樂節目
室外傷話有劃今、瑞喜香味衆來
县境蔚年友一個外
羊痛有打歲,孔只
終送溪阗成爾也應發他,寒季員時
有,出。
|-四月四(第1!
妃);下午十時十分
禰洁奔至十八相送。
學的秋》,五晚(星期凡塔。四月六日 曲」:紅梅閣(李玉菇「F:「唔...为 一)十時十分「盤」(第二台):王昭君1 i梁山泊與祝英台之草、繪畫山、梁來源。眼
丶實正點)」實娥冤冖芬、黃千傲。「玉女思
第1'台各地戲曲播白素仙。「山河淚」文 【台)下午十時到十時 ---仙·梁天楼
播出時間到+1時:「李後主之 「去國歸降」;任、
*、「海子山下」李明之演出):(四巴古今奇講,」。六晚八時半到十時,播第二輯。七晚八時半到「哀哉」——烏龍院之「招魂」陳类圈。四月八 於自苦果,累及見孫。演員也屬大堆頭,計有:黎整、楊賢仙,良嗚、第一模。二晚九時到十時:播第二號。五晚九至世獨奏時與。四月七「玉女愛車」任劍輝、 ,拍攝及表達。他以一個不忍殺生的礎就教徒,由於不在重衛生膠繩,約晚八時半到十時擺「香滋兒食食唱團匾年音樂會昫华「明辦笙歌」——下午十時到十時卅分, ,綜合的節目有一定的,播「精」。九晚九時到十降 - 播「江濟」趙嵐》。九號(嘉期【十分到十時三十分:「 (五)長籟劃。雖然十時,撥「雅榮社演唱會」。八晚八時半刻十薦 殺婆世宀同倌芳、日(第一台)下午十時 一時到十時:揖「藝術節呑濳聲樂家演唱乚第一般校(星期三)十時十分|白雾仙。朱非低勢之 四月一至九日 - 第二台商“出特備節目:三日(虽期二)下午六。四月七 (第一)
馮瑞胗、菜心、嚴明 麗髙。
藏案,而好的話劃節目 梁音樂會
一搵,除何楚戰外,還有 |李安求,吳籍事,健
的有一定的捧塲者。
港台龍翔劇團
1-3. 魚方面i
:張炳強,龍寶鋼
養箱
四月演出好戲月十晚七時半「散曲」十一條:「夫榮泰米畫
碧玉脚?趙愫》。四(第二)下午十時到 高于口〔黃象育];当妙芝。同日
———帛書(何雙師會,崔妙芝。「深宮 五)十時十分「旗劃」曲動心——新馬
獅子山下新秀上周麗媽
卷中月,故只得由他人代主持兩週。 集左右郎,近因節目主持人辂有椰有遠離香、斑雜及程咬金。石. 台中播出,由何江區導。已穩了大半,尚有四 莫家駒演出分别扮演梅 :「實原癿影切剂,現在無綫,隨的及佳視三孜由寶鍋、良、 硤尾師由譚跡時、勞靳
分甲乙两根·李花落之
一個比較專門性一點的節目,於是何苦江也非請
• 李周明爲「實稂電影切割」策劃,爲了這是 研及安非供演出,龍糊
何鑑江爵新節目對一相同,演出人選
得無及應的兩台方便借出演員公加拍攝。許多 港台「和于山下」節目,捧紅了不少電視高 黃。而由於港合這節目,及得幾位處本演出,故由於作品不多,故此節目也沒法子,一路帶下法 面最優良的製作, 也分穎了實檢電影的紅熱等, 锐節目中,我已盡量大家介紹了目前本港這方 「圈實戰電影自前尙在萌牙階段,在實匭電影 一節目安排在這段時間內播出。據何航江表示; 有興趣於炒劃之觀衆, 他出現螢光幕。至十三辉播完後迭台又合發揮另 四月份共演出六台戲。 播講
崔希望有意源「出于山下一出,一勸于山 俊再作商洽]云, 本身發現了新秀。也因此,一些電視圈于中人,日。但亮尙屬初步草.灬,一切也有待與監叫張教 了,但磁漱台「獅于山下一選用後,結合電視台 作介紹。下一節目,我考慮無拍與體育有關的節 時,這個體熱台本身演員太多,一些新秀被投閒。另有待他們再有更多新節目之時,再去再
棄「賭」,導演就啟螗衆的第一期刈繞珽學員周注聯 盡量以有真實彩愫者安品。在最近拍攝中的一 「下」每一集以一個其實故事存在,人缨方面也就
麗娟參加演出。:
以全新舞作面世。括市小故事 CODE 一起元,音案節目全以立,均由新的項目頂替。 台在廣播上,會踏入新 經媦年以上播放的觀 四月十五日起,惓一月起,港台話畫節目,
以全新製作面世 廣播劇三月中起
敏節再去,方切;另睛是
波經
(「實驗電影切割」引起青年人 桀第一屆「主席挑戰盃,
都會局
e絫關轉分
論討觀面面
題問荒生醫
出播晚三月四
的間題。由於近期需激登
順」中研究。與時出席常包括:本港醫學書會長 可行之爾策?此一問題;均會在本遇面面 ——映本谘之各痳服務? 究 東對此等情形,可否找到
岘港-往外地謀生,是否影
生,抑裏只是在站立在商 內的此問題,又外露野生
| 大四月三日晚九時半播出,現於遇四月
月光
-
-張君狄、芳轆芬、與郎、紙
的月:
|林友榮:熊德成 能良 *-*MS - KES - 的廣播仍播出的爲民間時,旺角麥花臣球塲四爛八時:九雕石硤尾 車森等:在本月內,一份激出劇目如下:二」及「姑娘爭料帥」。」
·滕台南國四月演出「失利花與薛丁山
焘長華》。八降一刻!風女、半日安。 周片說明
上星期「面」討論規實藐授
∶-左起:聿軒(性名人)、
實線電影近尾聲
「诂嫂爭掛帥」。兩日 「樊梨花與謀丁山」及市政局臺樂市容為洲委員會主豬),朱麗(主 嘟(下邨)疎塲:演出洛德根(政府康樂邊育事淼u )、羅盖章康貝C J,楊俊華六十九龍灣府主席)。
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