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日九廿月十年未丁靨夏
WAH KID YAT PO
僑
M68英文中學會考試題預習專欄
生物科
(五)
·徐錫籟。
Biology (5)
'By S.A, 740L
absence or oxygen they can existy. In auch:
四期
condition anaerobic respiration does not release energy as efficiently as aerobic respiration.
As for both plants and animals, the term
respiration is often Applied to the mechanism
whereby the organism abtaine oxygen, e.g, by breathing in human (animal) or by diffusion.
through the stomata of the Leaves and Jeuticals)
of the stem in the flowering plant. A
In order to demonstrate the occurence of:
respiration in a green plant it is needed to show
that oxygen is used, carbon dioxide is given off.
heat is: evolved and there is a lose of stored
organic materials (ie a loss of weight in the plant
Comsumption or oxygen and evolution of carben dioxide:
((II) Creen plants used for this experiment are
germinsting pea seedlings which are put into a retort with one end dipped in the beaker of
sodium hydroxide soluti #batas shown in the diagram below:
to mercise for last week: (on 23rd: November)
a mlf section of a common flower:
parts from A to K.
Ans. A: Patal
B: Anther'
C Filament)
D: Stigma
P.Style:
Fi. Ovary
GOreles
H: Sepel
I: Receptacle.
J Pedioel
K+ Nectary
(b) What are the functions of a_to K.
Ans. A (Petal). Because of its colour and scent
(a) What are!
to attract insects for
pollination.
B (Anther): To store pollen grains.
C (Filament): To support the anther firm
and high for pollination.
D (Stigma); To receive and hold for pollen
grainer
E (Style): To lift the stigma up so as to
enhance chance for receiving pollen grains,
f(Ovary) To protect and store oniles for
fertilization.
G (Crules ): Are unfertilized seeds, statio
female gametes for fusion of thes motile mie gamate,
H(Septal): For protection of the flower
during its bua stage.
(Receptacle): To support the four rioral
parte of the flower ano may form fruit after the result of fertilization.
(Pedicel); Actually is a flower stalk,
upport the whole flower.
sugar nectar, solution, on which many insects fadd
K (Nectary): To secrete n
(1) Androecium - is a male reproductive organ of a flower. composing of stamens, each of which nontains! two parts.
(11) Gynaeolum - is a fem la reproductive organ of e flower. composing of one or more pistils or carpals.
(iii) Stamen - male part or a cower consisting
an anther and a filament.
(iv) Carpa) - a female
the flower
consisting of three parts, stigma, style The group of carvels may form
and oval pistil.
(v) Jalyx - a collective name or sepals/
(vi) Corolla a collective name of petala (vii)Pistil – similar to a carpel
formed by one or more carpels:
(viii) Inflorescence • 18 a group
borne on the stem of the pli
18 respiration? Illustrate with experiments the durence of respiration in e green plant.
(I) Renparation 38 2 lize process by which the complex.
organic compounds are broken down, with the help. of certain enzymes, to release energy for aupporting the mechanical work of the living organism. The requirement for the Liberation.or energy by this chemical break down of the carbohydrates, such as staroh, glycogen, fausS and proteins, is the existence of free boygen. "The other and coducts after respiration are
carbon dioxide and water vapour, The process of respir::
111 reaction as
engymle det
can be shown, by
However, some bacteria, called anaerobes, can jaurviva under anaerobic condition
Heat energy
To deprive of the process of photosynthesis to take place the external surface of the retort la
blackened. After a few daya, the caustic soda
(NaOH) colution will have risen up the stein of the ratort to oceany 1/5 of the total value, a 1/5 of the atmosphere is gaygen, and the dirban diozids to the only gas which could have been) absorbed by the caustic soda solution, tha
gests that oxygen has been used up and replaced by carbon dioxide. We can confirm that the gases left inside the retort do not support combustion by putting a lighted plint (which is extinguished at onae). By doing this experiment e control est
trexcept showa no of retort which is significant chang germinating pea
into the retort-
the Hg 12/
The above exper
Axygen and "evo) green plantar
Loss of weight (£11) Secondly it
This la
of dry wheat.
The wheat greina
and left until the ra
mutting
go by
insplantst
Happens .
dmountai
germinated, Eu
Both of then are then dried unitil i constant) weight 19 obtained in each jornalble.
Then in Gain cases a loss in weight is round :'
he par cen tage loss in weight of the germinateo, gra irie will be found to be greater then that of the untrasted (ungerminated) grains, Showing 1099 of dry matter by respiratium,
Evolution of energy as heat in green plante
· peapdration:
(IV) Mascly, we deli snow the evolution vi Choppy as
heat in green plants as follows to
The germinating pea reed" nge are carGFULLY
introduced into a hest insulated chamber, such as a thermo flask. And another adhilar flask
is set up containing seedlings killed by heating or soaking for a few hours in a solution of 0.1% mercurric chloride.
The diagrams are shown below
Thenas-flasks
Pes
seedlings
COTTON Plugs
RISE CF FEW DEGREES AFTER 3 DAYS
After or 3 days there is a afference or row degrees in Lentigrade gher in the thermo-flask containing germinating peas seedlings without treating with mercurric, and pride, solution. This shows that heat la e evolved, during respiration.
Instas the thermo-flask,
On conclusion, green plants, when respired, use up oxygen give off carbon dioxide, Iose in weight. and libereta energy se nezt,
Exeraise for this are星2
日十三月一十年七六九一慶公年六十五國民奉中
財富與經濟繁榮 實爲最佳事業: 收入與生活水準之理由 對現代青年而言 創造經濟 港並無不能加速工業發展之理由 因此亦無不能提高 指出香港之薪金與工資比率處於世界最高之列 香
香港工業發展
經生
(特心實院昨(九)日在大一
經提
濟高香
業代
年因世
而此界
言亦
如下: :
鎮士元博士講詞主要部份
易手,引起统治、社會真為濟的改變。然 一 貿易的蘋題。 二件大事是虚脱爆發,引起聯合國對中國
於十一時開始,就由王澤森校長報告校游
三個就是你本身的此會產生了一種自業的感覺,並一;另一方面,來自北方的大量移民,
「香港遇」除了低迪本港產品在本禇 「及而外的弁路以外,又令到香港居民對他
外五货
者七十餘人。英文中攢會考合格生五百九‘且表現了一 - 冰堆加多村項目,報告該校參加香港習對香港工業的發展作簡短的說明。 十人,其及格率接近百分之百。裸外形】 本人現在想利用這一個很短的時間,一倍,我們畫夢實實解决他們的食住問題。 利影啊。一方面,我們發現傳統少赶RA 幾乎在一夜之間,使本港人口突然增加
·澄两件大事對香港經濟都有直接的不
九
此以外,我們還利用了自己的安源,在網 力,他們不在分到香满免於發齊落點及肚,五九年,加拿大造就出來的工程时有百分 會乐鄉,並且棒香港創造了經濟協議,除之四十八到美國去就業。惟一年中,限易出敕的。”
「成了漢漢斯人的工作,超過了十五年的落一,但受人才外流的打擊很頂。一九一五大湖,還收短線,崔質技術,繳資人才,陳行不息
一周培育工業之機起力圾,嫁即一方面藏殺
一,日新又新,方足以與其他工業都市,齊 風丼。凡此穰键,皆非由教育膺于不爲
各位的上一,完成了一項令人極做 宮學位,以及使本港生活水準迅速提高。的烈家,游快地運遇了射無問題。 在小學,中學及大壞夏圓,設立了九十。所以,生活水流高的满家再生活水鹉低,的責任。
伍豪面,蜱日和全港人口的百分之廿五打,我本人相葆各位第一代的居民,其中功。是以方今工频硝補重大任務之一 一,他就是一百萬人,被雜好了庶全的雅方一樣中百分之廿二.英时佔總贼百分之十七,都離負起的一年學生厭牙本港工業少熱情志向,羹
...香嘴的工業工究在東面,大於一的有很大的藝術,結果工箋學識技術之水準。總之,頂俐各
:本校黼非工粜可料附校,然亦有盼本
明了此項專業。中想該所內報告,東區 低級人材由士努金賀一以實境影争先於今世。
精工荣之共同激發心,一向崇棠席口贸易取得收入,過去手般以長課爲基礎。實際上,本港居民的熱 研究科學技術以發展工業,經粹香港之和有粤香港整個經濟的貫一食全部均當輸入,黃至食水亦需向中國大現在要这一步推動上一雙的工作,爲香港一 「晚會表演之意美,及本港工葉與學生之明 各位都知道,香港本來的一個島中,又無大而適宜的耕地,使我們的慈善位以現代青年人与事業工人的平均每小時工資下-日本R
平必粉料
榮。廖伯靈完博士致詞,最後由占業生 ,一九四零年代末期至一九五零年初, 代表王治一致謝詞並向德夫人妖花,十二述方面發生了两件大事,改颳了香港的現了安迷人的真正性格。次一等的人,成 在這些恶劣情况中,各位的上一分表,把吃,以美包外先委铁及扬光大的責任 經濟度心。第一件大事,是中國大陸政府)許對非顧失望,仰發更獎,并且要求屬染各位將來體入社會,創黃立榮,而撞。總個月前交園 國際性理雜誌對日生活水準的理由,但這完全要依其我們官」。(群). 斯圾及台灣的两害,高於南韓三倍以上,理由,因此也沒有不能提高我们的收入與,業界之協助合作,始可滋得事半功倍之效 人材的大咪,改善他們的生活水準,是實一校學生華藥後,能升工業專科學,學工 我們在香港没有不館加速工業發展的一年之校,深感塢積工業人才必需仰賴
光兔飯
年到一九六一年期間,工程師及科學實驗
·居美國的問題等行過一次調查,她與現有香油工安比的事突飛猛晉,工歿設衛興捷代亦日新月具
各位的上一罐,跟上了汗水,肺乎
What is the diagram of the
帕多漿從居很
必的单外民多
帶外激區藥的
鍾士元博士在新法書院畢業禮講
日本已經有了很多的工業叢程,各位巴西的 一的梗就與稅列,但各位的上一輩,并非如一的橫厚,是各位上一辈的人所没况的。一次,我對友開賽的立案也在
果界。故本人版周,對現代的青年來說, 各位之中,有些人將來不免會投身其
一夜激的人口過多的困難,建立了一種嶄新發護。 新辦法,譚求保持香港經濟自由與獨立生一的工兴蛋品在世界各主要市场都有銷路, 的經濟,並非搬過去一線,以愛易為各位对能題對人才外流的商初,以及在法健实假則如此。香港法沿考察團, 「工業界薪企低低的傳統。本人就用今天本年和助間日本,發現日本技佞人員的拎 有的新娘法,不顧質有的天然不利亞件與,我們的企編楮伸及生态力,也就有-
份的一般提供由於好像的工業主机请 惠嘆,本,以香港工榮表會主席的身份, 他們立刻開始工作,尋求侶央生計的。以在這個蒸礎上,立自己的寫無,一書師,高級技爾書發惓員的規金,雄造經濟財富與經濟默榮,感然是熱好的 被满有工業按工及非按工的工安標準有 日本三港工業技術人員的薪金禦館也低於可。本人將竭纛所能,鼓勵這些後合的實 現,同時衷心希望各位善於利用浪些 自然希望工檗界中能有待遇優厚的就業機
. 經濟ㄝ作及發展組織會經對一九五六蜀工安比率是成於世界最高之列的。世上,使此
行力上寫的内容之一,能於世界區工業界佔一席位,
人。
魚魚
校長王澤森致詞善稱:
-祗禇之經濟命脈繫於工業,本來以導
WLUTH
ant represented for?,
(b) Name the parts from A to I.
What are the functions of What are three conditions necessary for its germination?
Try to evaluate the vitamins A B (Thiamine); B
(riboflavine) Nocotinic acid (Niacin) Bin) 6. B
Eg K under the following headings':
(a) Chemical nature..
(b) Source..
(e) Functions.
沙 Signs of its deficiency.
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