莫二張四第 日八初月二年戌庚
WAH KIU YAT PO
報日僑華
日 明星日五十月三年〇七九一琴公年九十五國民靠中 育教僑華
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新橋
9. 動物進行呼吸作用時所吸進体的之氧體為
植物進行呼吸作用時所吸進体内之氯体為。 10. 呼吸作用進行時間在。
179英文中學會考試題預習專欄
氯
英文書院主編
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影呼吸作用於植物体那一部位進行,
經濟及公共事務科 (十九)
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中文中學會考試題預習專欄
13. 呼吸作用是一種
2. 以醣為呼吸基質,則不大所產生之物質為和
能而釋出之行為。
能而储存之行為
生物科 (十九)
莫愛桐,
下列三個裝置為試驗生物之呼吸作用與植物之光合作用 三関係
缺氧呼吸與雷氧呼吸同樣可莲生一種物質。
**
[蝸牛:
《放置在暗室》
試解答下列問題。
一般情況下那一裝置的蝸牛先死, 二,一般情况下那一装置的蜗牛其次死, 3.一般情况下那一装置的蝸牛最後死, 乐試解釋以上現象
列為試藏植物蒸散作用之裝置
- 綠色
植物
色植物
一橡皮圈
乾燥氧化 豁誠
試解答下列問題:
1. 乾燥之氯化鈷試纸是甚麽颜色,
2潮湿三氯化鈷試紙是甚麼顏色,
水生
3. A,B兩個裝置之氯化鈷試紙有何变化,
4.C裝置之氯化鈷試紙有何变化,
5.試解釋3.4两项之现象。
三下麼是柤物輸導實驗之設計
此設計放置一星期後,依其情况
試解答下列問題。
1.日部有何变化,
6B部有何变化,
長出不定
去一樹 皮之位
C部之不定根會繼續增長嗎
4.試解釋上述三項答案之現象:
14. 光合作用是一種___ 能轉變為 你在植物之体質代謝而言,呼吸作用屬 化作用過程之一 16.在植物之体質代謝而言光合作用屬 化作用過程一 27.在種子萌發三早期,需氧呼吸和缺氧呼吸同時進行,故
呼出之二氧化碳,比吸進之氧之体積為
前期線習解答
A分子間呼吸,高等植物之姐张或某空下等植物如醇 母菌在缺氧的環境中能秀的素之作用,促進醣類分 解且釋出少量之能,此現象摘分子間呼吸,亦稱 缺氧呼吸:
B光合作用:是一種以光能去便小分手之物質合成大分 子之物質其間光這種動能轉為位能處於大分子 亵追逼程彌光合作用,
光合作用在绿色植物而言,是一種不能缺少的餐 過程,發生於奧葉綠粒之细胞,當有光能照射之下,葉 綠粒便會把CO和水合成碳水化合物,此合成物為
·植物之食物(陸上植物所進行光合作用量約為10%水 生藻類所進行光合作用量約為90%)
C.碳素同化作用:绿色植物進行光合作用時吸入水和二 氧化碳等無機物經過一連串複雜的化學反應西合 成葡萄糖,此過程又楠素同化作用~
氮素同化作用,植物製造昼白質時先由酶之作用使醺 類分解產生酸,再由此産物與含氮化合物结合造成 氨基酸從此氨基酸再合成蛋白質,此過程可稱氮素 同化作用
二缺氧呼吸証明。
一浸水五小瑾
̇主菜豆粒+
米銀
用用臭略
B. 材料綠豆種子
C.药品水銀石灰水
D.方法:
取玻璃皿一個內盛水銀易取試管一支內盛10粒已 浸水五小時的绿豆粒子,再注滿水銀,以指按着試管內 倒梅於皿的水銀裏,於是試管内成一水銀柱,熊空氣在 内又因比重開你種子浮升水銀面之上(圖一
三结果:
經教小時見試管內水銀渐渐降下醬內產生氧侥里 現一空間(圈二)
若以弯口吸管從試管口加少許石灰水於試管內則見 石灰水很快升上水銀面且漸由澄清变混濁,此時水 銀復漸上升(圖三)
誠绮出實驗結果国、
王培論。
嗯蜓
1. 光合作用的四條件是
2. 光合作用的主要產物為
副産物為
3. 光合作用製造食物的材料是
光合作用的主要產品為.
屬無機質
屬有機物質。
4光合作用的機構是
忒植物要藉太陽光能去把鱼機質合成有機物質作食物太 陽能是一種_____能而對於有機質中的能是一種__ 植物行光合作用製造之, 為最先貯入陽光能之有 ̇機物質
7.醣類轉化為脂肪的過程是先由酶之作用,使醣類分解
産生和再由此二物質合成脂肪.
B. 陸生的綠色植物常見的葉綠素為.
成此等葉綠素原子共有
各種構
種子在缺氧之情況下可進行缺氧呼吸,當種子浸水捷正 要能之支持加速其生活力進行萌發,但缺氧之供给故具 体質內便要進行分子間之呼吸種子本身可產生一種酒精 酵素能促進本身所含醣類分解而產生酒精,二氧化碳及 能,在此分手間呼吸過程,無需氧而能呼出二氧化碳其 反應式如下,
CCH2OL (葡萄糖)
·酒精酵素
2CGH3OH + 2CO+能 (酒精)
上列圈三情况 注入石灰水 石灰水混濁且氧体消失,水 銀復上升,石灰水混濁三原因是因遇上二氧化碳化合産 生碳酸鈣沉澱氧体消失而水銀復上升之原因是全部. 二氧化碳與石灰水化合了,因而管內壓力减少玻璃皿 的水銀,因大氧壓力關係把水銀壓進管内。
由上列實驗証明無氧氣供给之下,種子可進行分子間 呼吸(缺氧呼吸)産生二氧化碳而呼出。
Foonomio & Public Affairs,
Lecture No. 19
Answers to Exercise No. 18
Question (1); What is a perfect market? Under what
monditions can a perfeqt market exist?
că- When, there is only one prics for goods of the mare kind and quality and this price is not affected by the influenes of either the buyer or the seller, wa Bay the markat is perfect.
For such a market to exist, there must be the presence of five important conditions. First of all, the number of buyers and sellers must be so large that it is not possible for one buyer or seller to influence the prise. The fact is that if there are
only a few bayazs or sellers, it is possible for one buyer to restrain from buying and thereby causes" demand to drop and consequently bringing a drop in the price. On the other hand, a seller may reduce his supply of the commodity, by putting out a smaller quantity forsale, and in this way be will be able to cause the prism of the price of the commodity to rise, But if there are many buyers and sellers,
behaviour of one buyer or sellar dose not affect the price of the commodity at all. Besides even if buyers or sellera try to join into groups, this is not quite sasy when there are too many of them, and moreover, human interest usually come into conflict.
Another condition to be taken into consideration is that the commodity put up for sale by one seller. must be exactly identical to that of the same kind put up for sale by another seller, so that for :: instance there is only one kind of toothpaste in the markety although the toothpaste is sold by different shopa it is exactly the name in every shop. In this way, buyers will not develop any prejudicial preference for one kind instead of another. Thus, whether he buys the toothpaste from A shop or 3 shan. the toothpaste is the same. we know that this
condition chly exists in theory, because we have goods under different brands and although they appear to be very close substitutes for one another, they are actually dissimilar.
The third sonditions for a perfect market to exist is that the buyers and the sellers must not have any prejudice against one another. For instance if one buyer decides to buy from only one particular shop because both he and the seller go to the same church, then this may cause the seller to reduce the price. On the other hand, a seller nay sell his goods. at different prises to different customers, and when this happens there is no perfect competition. Ing short, sellers and buyera must not let any influence to affect the prices of the goods.
It is also necessary for every buyer and seller to know exactly what is happening in the markat; both nust know the markat price. Again, this condition is
difficult to fulfil, because buyers for instance are. reluctant to spend their time to find out if the price of a commodity sold by one shop is truly the obeapast. Again, sometimes, a buyer prefers to pay for a higher prise by buying from the shop nearest to his home instead of going to another shop far away, although the prise in, must cheaper.
The final condition is that the product must. De Dovable, so that any increase in demand can be met by. a proportional increase in supply. However, this condition seldom exists, because certain things
cannot be transferred from one place to another.
bands and buildinge are: examples of auch
dinge are examp
pahinga.
In practice it is extremely difficult for a market to approach perfection. Commodities are seldom if ever at all, homogeneous bath buyers and sellera are often full of prejudice, and both are reluctant to compare prisss, perhaps because they cannot afford. the time. Some buyers are persuaded to believe that. higher prices mean that the commodities are of better: quality, and others are willing to pay more if the service is more courteous or the shop is cleaner than. another shop. Sellers on the other hand, may lower the prices for the more friendly customers. Thus, retail markets especially are far from being perfect. The Btook exchange, which is a highly organized market, however, may be considered as one approaching quite close to a perfect market,
Question (2) What sort of work is done by 5.1.R.D.A.? Ans wer
Drug addiction is a serious problem in Hong Kong, Hardly a day passes without reports of people taking drugs or smuggling of drugs being mentioned in our press. The seriousness of this problem is reflected by the appointment of the Action Committee Against Narcotics by the Governor in 1965,
Although Government has endeavoured to solve this problem through the combined efforts of several Government departments such as the Medical and Health Department, the Education Department, the Prisons Department, the Department of Commerce and Industry, the Social Welfare Departinent, the Secretariat for Home Affaire, the Gabour Department and the Palide. the work of one particular voluntary organization should not escape our notice.
This organization is the Society for the Aid and Rehabilitation of Drug Addicts, or more commonly known as 3.A.R.D.A. which is the abbreviation" of its full name
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