REFERENCE LIBRARY
10 DEC 1971
日
淯教烱華頁三第張六第日二廿月十年亥辛膰夏 WAH KIU YAT PO
GYMHÄLL
1972
中文中學會考試題預習專欄O
數學科
(六)
張正邦
60 Sibo
第五次預習題解答
-
·C种心香禇治師 整烈,將簽名續客
-各校教師响隳異常熱烈
試證下列式
寻一本
1. Cos 420 Sim 390° + Co (~240)
右端
1972英文中學會考試題預習專欄
* Sin (-330°) =
(a)
**D=Cos(360+60) x Sun (360
| +30°) + Co 240 (Sin 330)
Cinbo Sin 30-Go (180+60)
* Sun (360-30)
Cs60 Sun 30-(anso.
*(-Sm 30°).
·Cobo Sus 30-Gobo Sm30
右端,
2. tanx+tan (-x)
Cac (188-A)Sec(90+A)
Cot (90-A)
(證):
左端
-SecACACA
·CICA (~COCA) tan A --CECA CACA tan A
COCA X
X
SIMA
CACA X
COA
QUESTION
堅道英文書院主編
生物科
Biology (6)
HOW DOES THE PORK TAPEWORM (TALNIA SOLIUM) DIFFER FROM THE FREE LIVING ANIMAL IN ITS MODE OF LIFE.
四期星日九月二十年一七九一圈公年十六國 民華中
用曬
驗測文英學留美赴
行舉月下定次二第
貘手名報安辦內週本于須者加參擬®
rostellüm
Scolax or head
of Ta
solium
uterus
純甄心本年度香
KOKERKKE
eggs" mbryos
Segment (proglottis).
ture segment
filled with
- tan (T-X) = tanx
(證)
***D=tanX - tant
( lần 2)
tan x = te
3 atan (90-x)b Sm(10:
-X)¢ sec (X-90°)
SELAX CACA
151 B2 ABYX Bb #k= 邊形.XA.YB延長交於K ABUXYKX=KY
The pork tapeworm is an endoparasite living within the intestine of man. But in order to complete its life cycle it must pass through a secondary best, the pig Structurally and physiologically the tapeworm is modified to fit itself to the parasitic mode of life
na no gut or alimentary canal, because:
taking in of solid food is not necessary. It is comp- letely surrounded with digested food in the intestine, and the food can aimpy be absorbed by diffusion.. But a free-living animal 19 holozo10, 1.0, it has to take in complex organic food which must be digested by special serrations called engymas secreted. by its own body before absorption, therefore a gut or some form of ingestion is necessary.
You can safely pass the examination if you can disting-
ah which of the following statements
(Answers given at the end)
true (+) or fa
Frog can be found both in fresh and salt watere
The frog is able to alter the colour of its akin to certain extent according to the abad- ing of the background.
3. The tadpole of a frog can live both on lana
and in water,
All leaves are green in colour.
Toung grean stems are able to carry photosynthesis.
abc Est X Cos X CsCX
左端
a b c cot XC X QCX 右端
↑ Sin240 tan 330 +as(15)
x tan(-210°)=1
(證】
左端
| = Sin (180° + 60°) tan (360-30°)
+ Co 150 (stan 214°)
1=-lin 60° (-tan 30)
Cas (180-30°) tan(180+30°)
Sin 60 tam 30-(-6030."
* tan30"
(370) AB//XY.
證明)
21=23 (1115/id
·外角等於内對角和) AB//XY (210)
21=22 ($49*R 御用等)
22=23 (37KR.
5. KX=KY (= 1}$$
角所對的邊亦等)
QED
Sinbo Tam 30 + Co30"
tan 30°
+
第六次預習題
設AB為直径 A
ADC BS 圓內接四邊形,延長 BEE
LABD + Z BCE
Locomotor organ is absent in pork tapeworm, and it is fixed to the wall of the gut by means of hooks and suckers born on the head or scolex. · But free-living form must have some means of locomotion, because it bas to search for food and escape from enemies or unfavour- able environments. The tapeworm is well protected by the human host. It holds itṣelf firmly to the gut wall with a puopose to prevent being carried away together with the fadces,
Respiretion. for pork tapeworm is anaerobic, because there is on oxygen in the gut of man. But free- living animal exhibita aerobic respiration ne oxygen is freely accessible; and its active life requires a lot of energy too, which can be obtained only by aerobic means. On the other hand the tapeworm can survive solelox on the small amount of energy released from- anaerobic respiration.
Unlike other animals, pork tapeworm exhibits unlimited growth. New segments are giving off from the neck region near the head, but its size is not increas- ing indefinitely because the old mature segments will drop off from the body and pass to the outside. It can Teach as long as fifteen feet. This le made possible because the intestine of man is long enough to fit it
(over twenty feet):
The leaves of Venus-fly trap are modified to capture insects because it is unable to per- form photosynthesia.
The bladder-worn will not develop any further in the muscle of the pige
8. The Hydra. 1s always mixed to the same spot
on the substrature
Contractile vacuole can be found both in Hydra and Amoeba.
10. The
Pork tapeworm possessed sackaza to suck or absorb food from the boat,
11. The insects also play an gotive part in the
dispersal of seeds
12. The cotyledons of some seeds are able to form photosynthesis during certain stage the development from the seed to the young
第二右端
5. Sec (360-A) +ese (270°
secc180-A
左端
= SECA - SecA-SECA
·SECA
Sec(180-A)
- 右端
两弦AB及CD相交成直 角風0試∠POD + 2BOC = 180
如下图, PQRS是一直線 < PAB><BAS EK BQ = BR
4. 图中,PAQ B HK是直線
EACE PHILKA
There is no special sense organ in, the tape- worm body, and the nervous system is greatly reduced. The reason is that these structures are related to the. irritability of an animal, i.e. responses of animal to surrounding stimuli or changes, but the tapeworm 19. having a more or less constent and safe environment, which is always dark, warm and rich in digested-food supply On the other hand the free-living animal must be able to cope with the changes of its surrounding în order to survive. That is why sensory structures to detect changes in temperature, pressure, chemicals etc. in the surrounding are present, and the co-ordinating system or nervous system is well developed.
As a rule a parasite la producing a large number of offspring in order to complete its life cycle, because many of them will perish before they can reach the next host, Fork tapeworm too is giving rise to a large multitude of eggs, and the mature segment 18 near- ly completely filled up with them. The free-living animal on the other hand is less hazardous from this point of view unlike the parasite, it can survive with out a
Dicotyledonous seeds are nonendos paracus,i while monocotyledonous seeds are endospermous
14. The mesogloca in Hydra is a colourless jelly- lika layer between the ectoderm and the endo- derm and originally possessing no oell. The pork tapeworm gets into the human body through the drinking of contaminated water.
The root-hair is a small lateral roots
17. There is no cambium in the leaves of botn
the Monocot, and Dicot. planta.
ne cells in the epidermis of the plant vody. do not possess any chloroplast except the guard-cells (of the stomata").
19. The adult frog has no tail but the tadpole
hảs one.
20. When the skin of the frog becomes dry 23 wiL)
die,
6. Su 180 Sin 120+ Go 120.
Sm390°
(證)
左端
- Sun (720 +60°) Sin (180=60)
+ Cr (180 -60°) Sun (360+36)
Sin60 Simbo+ (– asks?) Sm30°
0.為圓ABC之国N
•AB + LENO ACKS P. BAR LAPN = LOCB.
The pork tapeworm had other adaptations too. In order to prevent itself from being digested by the enzymes in the gut of the boat, it is secreting a substance, with antienzymes, enclosing its body.
The. non-living cuticle on the surface of its skin too, can protect itaalf from enzyme action and mechanical in jury (wear and tear by food in the gut.)
From the above we can see that the pork tape- worm is differing from the free-living animal in many respecta, because. ita body is structurally and physiol- ogically completely adapted to the life within the intestine of man,
ANSWERS
(0)
10%
14.
18, (+)
ལ
€ €
ཏུ
4 (0)
20, (O)