袁国第三
日九初月四年午丙腦設
WAH KIU YAT PO 報 日
華僑教育
英中會考經濟及公共事務科答案(讀)
Contd.
Bong Kong Engifer Schoo. Cérvificate Examination)
E.P.A. (Answers continued)
(a) What factors. should influence a school leaver in choosing,
career?
There are an general two kinds of work--a career and a job
A career is usually taken to mean a special kind of occupation} for which a person prepares by a course of training and chooses it as his or her life's work. A job is any kind ox work to support one's living.
A
To choose a career, we must considerfirst our own interests and aptitudes. If a person is interested in the work, he feels a sense of satisfaction and achievement. person will not get discouraged easily, and can overcome difficulties. Aptitudes are also important because careers vary in what they demand of the individuals. It is not worth while to take up a career merely becruse it gives apparent security or attractive pay. All professions require success in certain examinations. A person who is good in science subjects,' may take up medicine as his career if fe likes helping others. If he dislikes human contact and prefers working alonia, he may be a good research scientist.
No body can say in advance what best career is for you... Advice and suggestions from adults or experienced persons may help. Prrents or teachers' advice should be considered, Assistance from friends is also helpful. Sometimes family background or circumstance also helps to guide one's chofas of career.
7. (a) Discuss the following terus in relation to the constitution of
Hong Kong: The Letters Patent; Royal Instruction; Ordinances;} Standing orders; orders in council.
The Letters Patent were issued by the united aingdom Government in the name of the sovereign, sealed with Great Seal to the Governor of Hong Kong. They provided the governor to establish the office of governor, an Executive Council and a Legislative Council. The governor should consult the Executive Council on all important matters. He should make law with the advice and consent of the Legislative Council, Letters patent are made by the Queen in Council and can be altered at any time by her with the advice of her Privy Council, 201
F
The Royal instructions take mattor a little further and provide for the composition of Executive Council and Legislative Council. Royal instructions are instructions issued by the United Kingdom Government to the governor upon his taking up the 1 post. They provide for the law making procedura of the Legisla- Live Council. New Instructions from the sovereign are conveyed/ by the Secretary of state...
Ordinance is the law of the Colony. They are enacted by the) governor with the consent, of the Legislative Council. When the. 8112 has been passed in the third reading, it is sent to the governor for his assent. The Bill then becomes an ordinance. The assent is published in the Hong Kong Government gazette
Standing orders are rules and forms regulating the proceduce) of government organisations. They are passed by the Legislativa Council
Orders in Council are orders and regulations issued by the governor in the Legislative Council. They are subsidiary logi lation of a temporary or emergency nature, Thay deal with the fuastioning of the government.
Part 2.
Proposed answers
1. (a) Describe, with the aid of diagrams, how air passed into the
lurigs of any mammal you have studied and how the oxygen 28, transferred fríto the blood.,
+1
經於本週一考竣
一名,而此之前,慶 入學椅增至三百五十 KE
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考生共二千四百餘名,可望 經於本週一致完,其位謀程者,除却龍攻 一年級課程應用的科入學之新生數字,已 泰下年發入學所武,海入洲大攻讀學士學程度屬降,此外,在於秋季始幾時,獲准 在七月中放榜 取錄 會蛟 第二百餘名。 因此,如欲今理及化學猳撞科普进千一百三十四名- 面 試獲得及格者共有1 HEEKKIN
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千四百多名,由於困。例如,攝入文學院易服,化學獲得高級八名(包括文學院二 在此三村巾,至少在科學生,則必須純聽,年洙大塔的新生入學 一,才可被優先取錄,工程溯學士課程之本,依照一般估計,今 IZRAHEKHABAR - HER1111 M)) 第一〇四
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期
英中會考生物科答案(五) 徐錫禧 ®
日八廿月五年六六九一曆公年五十五國民塞中
取錄掮視申請者之成 院攻讀與上课程之餓來,此項計劃實施 你仍屬有限,而在入 6-經濟及公共事 及格亦可。 老生亦其多,入學之國憲法等;投入理學 發設計測,將於今年 榮。由於目前港大 、德文、純獄、應用;北銘致在普通程序 學試之中能源及務之稱,英國經濟史、芬蘭,香港大學的华 收到稿件 ,向醫益詿拼主任中文、浙文、西班牙文、理學士長 本版昨晚
,則須於七月底之前、中文、拉丁文、蔣高級娛樂及格;攻
中中客梯:地理
*本科學生,在數學 以來,已有窖姿珽、生物‧
(B)
'Answer (a)/
(N.B. Refer To The Spotted Froblem Of Exercise '11 Published,
in WAH KIU YAT PO on 17th, March, 1966,))
in the thoracio cavity of a mammal there are left and right lungs which are in turn contained within two airtight compartment called pleurae. Forming a pleural cavity.
Each of the right and left lunga fills its cavity, right and left side, almost completely. When the thoracio cavity is increased in volume by muscular action, the outer pleura tends to pull away from the inner pleura and so to create a vacuum in the pleural cavity. The air can stream into the lungs through the trachea and the mouth or nose because of the difference in atmospheric pressure between the pleural cavity and the external environment. (fe, when the lungs expand the external atmospheric pressure is greater than that of pleaural cavity, ao air rushes in) When the thorax relaxes and collapses, the volume of air in the lungs inside the pleural cavity mostly is expelled out through the
trachea.
By the repetition of this inspiration and expiratii «j supply of fresh air to the lungs is maintained.
in two ways:/
The thoracic cavity is increased or decreased in volume]
During the increase in volume of the thorax. the air fills an the lungs due tor
By contraction of the muscles of the diaphragm which causse it to flatten, so pressing the atomach and liver further down into the abdomen.
2. By contraction of the inspiratory intercostal muscles pulling the
ribs, which pivot at the vertebrae upward and outward in man (but) downward and forward in the rabbit.),
During the decrease in volume of the thorax, the air le mostly expelled out dua toi p
1. Relaxation of the inspiratory Intercostal muscles, which allowa
the ribs and sternum to fall under gravity and reduce the volume of the thorax,
12. Relaxation of the diaphragm muscles while those of the abdominal
wall are contracting and pushing the stomach and liver up into the diaphragm, which arches into the thorax so reducing, ita volume.
The elesticity of the lungs which causes them to expel air.
AVERTEBRAL
(Column
Diaphraging (lowerte)
(5) ▼ NowTMchika gou show axborisontally
that a green
plant
respires,}
(H.B. Refer To The Spotted Problem Of Exercise 5 Published In
Wah Kin Tat Po On 3rd February, 1966.)
Respiration is a process by which the complex organlo compounds are broken down, with the help of certain enzymes, to: release energy for the use of the organism. The requirement for the
·liberation of this energy by the chemical breakdown of the carbohy drates, such an starch, glycogen, fate and proteina,, is the existence of free oxygen.
in broad bean, respiration takes place in the protoplasm of every living cell, involving the oxidation of stored or digested food substances by oxygen, resulting in the liberation of energy.. In the case of a carbohydrate carbon dioxide; water and energy ara released:
1206602
60068,0
Most tissues are capable of at least a limited amount anaerobic respiration, while some bacteria are wholly anser,bie, Anaerobic respiration does not releasp energy as efficiarly da aerobic respiration
206 205H«OH+ 200
Apart from une chemical breakdown of food, the farm respiration is often applied to the mechanism whereby the c obtains oxygen, a.g. by breathing in-Man, or diffusion through the stomata and lenticels in the flowering plant,
In order to curatietrate zne occurence of respirations green plant it is needed to prove that, oxygen is used, carbon dioxide is geven off and that there is a loan of stored organic rateräis £e, a loss of wuleht.
Green plants used for this experiment ara germinating pea, sedlings which are out into a retort with one end dipped in the
sodium hydroxide solution," Just as shown in the dia genn
港大下年度入學試
中中會考工業繪圖科試題
工業繪圖(KB=))
(三小時完卷)
AFTER BYH
INHALATION
qsão cavit
Trachica
-Retort
NADH
Bronchus
法老廟中尺寸如未標明考生應依比例
Outer pleara
Inner pleura
Heart
(a)
XX割面正視
千旬owv全尺寸比例置:
(b) 丫丫剖面不視同
() 從箭 须乙方可觀察之侧视目,
圈木一鑄鐵管制(PIPE VICE)之正視圈及
-Lung
Alveoli
Gaseous
exchanger
The differences between the inspired and expired air are sed as follows:
Inspired air-
Expired air
(incoming air)
(outcoming air)
(breathed-in air}
inhaled air)
(breathed-out air)
exhaled air)
785
15-17100
4%
66
16 (approximately))
warm
dry,
moist.
Nitrogen
Oxygen
Carbon dioxide
Water vapour,
Other rare gases,
Nature of air
78% 20-21
·0,03%
1% (approximately) cool,
less bacteria,
more bacteria,”
For further study or the inspiration and expiration of air we have to deal with the exchange of gases through the blood 18tream:
The blood conveyed to the lungs direct from the heart through) the pulmonary artery is in fact venous blood with a concentration of oxygen in it which is lower than that in the air-saca of the lungs. Oxygen, therefore diffuses through the walls of alveoli into the capillaries and enters into loose combination with, the pigment hemoglobin of the red blood cells. This accounts for the drap in percentage in oxygen during inhaled and exhaled air.
To deprive of the process of photosynthesis to take place the xtern surface of the retort is blackened. After a few days, the caustic soda solution will have risen up the stem of the retort to occupy 1/5 of the total volume, As one-fifth of the atmosphere is oxygen, and the carbon dioxide is the only gas which could have bean. absorbed by the caustic soda solution, this suggests that oxygen has m
een baad up, and replaced by carbon dioxide, he can confirm that the gasea left inside the retort do not support combustion by putting a lighted spint (which is extinguished at once.) By doing this experiment a control set of retort which is same but except shows no significant. charge.
Secondly it needs to show that during respiration of green plants loss of weight happen. This is performed by removing the same germanating poa seedlinge from the ratort. Then dry them at 10000 for a while and weigh until a constant weight is obtained. Take the sama number of ungerminated pea seeds which are treated in the same way.. By comparison of the weights of the two groups it is found loss in weight the group of the germinated group,
Lastly, we can show the evolution of energy as heat in green plants as follows::
The germinating pea seedlings are carefully introduced into a heat insulated chamber, such as a thermal flask. And another similar flask is set up containing seedings killed by heating or soeking for a few hours in a solution of 0,1% mercuria chloride. The diagrams aro shown belown
正視
700
TECH, DRAWING II (2)
ٹا
The re-oxygenated blood is returned to the left ventricle of the heart and pumped out through the sorts to distribute through the body tissues generally by respiration enery is bonisiuned, the oxygen 19. used up and carbon dioxide is released in the living body risauna. So the blood surrenders oxygen wherever the concentration of the latter is low and carbon dioxide is taken into the plasma by solution or formation low and carbon dioxide is taken into the plasma. by sulution or formation of salts wherever its concentration is high. When the blood reaches, the lungs after its next passage through the heart, the concentration of carbon dioxide in. it in higher than in the alveoli, and some of the gas diffuses out of the blood into the airfasch This acounts for the higher carbon, dioxide content of the exhaled air.
flask
-Pea seedlings.
Cottonwool play
Difference in rise of fear degrees...
after the experiment.
After two or three days there is a difference of few degresa in centigrade higher in thermal flask containing germinating pea seedling without treating with mercuria chloride solution, This shows that heat is evolued during respiration:
Un conclusion, green plants, when resoired, use up oxygen, give off carbon dioxide and liberate heat energy.
(N,2. In answering such type of question, the definition of..
respiration should be qpplicable to both plants and animals, The.. experiment should be explained in detail including a few subdivisions of the experiment so as to make the problem perfect and to score utmost marks)