LA RESET 180 TE HAS BEEN
The stinging cell of a hydra is present in (1) me soglea (2) ectoderm (3) endoderm (4) basal dise (5) entaron,
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日四十月一十年八六九一
育教僑華
CK文中學會考試題預習
生物科
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JBIOLOGY. (2)
一九六九平中文学会教試題預翌
數學科
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潘仲强 ***** "A (point);} -ASSURET 21-1862* ***' §£**i*1(position) ttir (magnitude) 64, 18 to to **£ £**** 是在討論但問題時有些奌的位置是固定不变的我們叫 * (fixed point), & fit & $**11*****, 44 44th to 4. (moving point). Ir]*« § 4 ABC, T§ A‚82 C都是定点,但是边上面的英,便是動桌了,因為各边都是由很 多的奌聚集而成,我們沒有說出它的位置好以边上的桌是笑, 有了這些認識,我們便可以討論「軌跡」(soul)問題了. 時謂軌跡便是在一個問題裡面某生真是可以種動的他 是它們移動時需要受著一種條件的限制,於是由逗美
動做的球我們便乞飯美軌・横々話説「戦」 这就是叫有適合條件的奌=集合
例如有角窓眞ARS スカートア 掌有PAIPA(軌跡條件)的關係,當然可
以找到一条已使PAPB;同時更可以
HP P
PAP,B,
RA=18,
遊些点集合而成的銭便叫做き軌跡
∵軌跡的意義既然明白了,究竟它有什麼特性呢? 認為軌跡衣談有下面两奌特性:一
a) $€£$45 - $**H *MES 1944. (25 (919) 黑若非如此則所得主動宋普有無不適合修讲的桌混杂得 在明未可知也。
完備性一行有適合條件的臭,都在軌路上(*
適合條件的某些美有 福岡在
【條件】
乾路既然有此特性,但因「前有的是银摄多的故营尊酱 証明的是下面軒
a)軌趾上任意兵能適合味件(正定理)
適合條件之任意奌,都在軌跡上(逆定理)
...但因為「逆定理,哭,对定理,是等慣的(可學習上期),故
如果再為是難以証明的話以証明(
(C) 軌跡外任意奌不能通合條件(对定理)
存並将基本軌跡定理列 F:
(1) - 動奌奖 两定奌的距離恆相等(軌路修件)共就
認為該兩定與膜线的中垂线
(2) - * § 1* ♫ 18 à 13 69 81 31 42 *¥ £******
角的两條分角线。
(3)-動奌奧两平行线的距離恒相等,其乾跡马其公爵
线錢的中垂线
(4)一奌典一定直线的距離為定晨,其乾办為分在此
定直线两旁两奖之距離馬定長的一双平行转
(3)ー動典一定要的距離馬定長其乾鷦薦電卓徹
园心 定長做半径 的园,
(6)一角的大小一定(定角)其西位名通一定年制基坂真之
以定膜桟倣莉而角マー双形流(可動
(7)直角三角形斜位置 大山一足,其直角頂軌跡 馬以
££ $ 13 = 8. (3 *{ } && < 4«#+#{}}
(例)一動兵典一定的距離為定髪 試其戦跡島一郎
(BA)0321 32£.
(條件)-乙葉PPO=L. (#20) P2 #51 2 - 12
(作图)以口真心為半徑作园
Ž P z oh oh..
[ETS) (a) ZEP #01 £142 € 15
(因上兵典国心距離,等於半径
此駕必要條件,
(3 614 21£ £ & Q. By oQ=&
則Q兵在0园上(峡园心距離等於半程的美必在因上》
上此為-
份條件
(C)設為0园内任意奌(軌跡以外)联OR,則OR<l
(図内知県図心距離区小松茅種)
XS 30 14 54 OS QU OS>
(国外卖典园心距離,必大杓辑!
此為-
份條件:
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(C証明・祇揚丼一部明取可
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其外一定要
(條件)80図間動
★ AB4P..
(求)當日奌移動時,求
PEBLIK.
(作图)联OA並不分之
2. XMBE COB*^? < + $1324 @.
3.M园為P<軌跡。
(*SE OR) 1. ★ OF £ BL 14 § § 8 11 AÐ, FS <*??,
HK DB, & MP, 21 MPOB
(三角形两腰中奖联线,等於底边士一半), 因QA笃定续放心為定真(一线段只有一中
MP=定長(因。因為定园)
乾跎為州园、(一動奌典一定距離為定長,其 軌跡為以定奌美國心定長為半種之一) QE.D (註)本题証法,是利用基本軌跡炭理(古)如此正法,
"Answer to the exercise of last week:
write on the line at the right or each statement the number preceding the word or expression tha best completes the statement......
1. When a microscope is in use, the part nearest. the slide is the (1) eyepiece (2) objective (3) coarse adjustment (4) fine ad iustrent (5) iris diaphragm.
2. When a microscope is in use, rough focussing is
achieved by turning the (1) coarse adjustment
(2) fine adjustment (3) inclination- joint
(6) revolving nosepiece (5) mechanical stage
2. (1)0
For a compound microscope, a set of light regulator is the (1) sondenser and iris
diaphragm (2) condenser and mirror (3) eyepiece
and objective (4) revolving nosepiese and eyepiece (5) iris diaphraga and mirror,
If an objective with a magnifying power of 10 is used, together with an eyepiece of
magnifying power of 6, the final magnification:) will be (1) 16 (2) 10 (3) 6 (4) 60 (5) 0.6 times the diameter of the chiant.. 4 (4)
A microscope is an instrument used for
observing (1) minute organisms, and structures (2) living organisms and their structures (3) dead organisms and their structures
(4) bacteria and their structures (5) aing organisms and their structures.
All living things are composed of a viscous material known as (1) protoplasm (2) oytoplasm) (3) Nucleus (4), chromatin (5) protein.
The process by which foods are used to produce heat and energy is (1) digestion (2) excretion (3) oxidation (4) secretion (5) inzestion.
7. (3)
The simplest green plants are (1) algae (2) bacteria (3) Funga (4) yeasts (5) viruses.
8.(1)
in plants, the cells are normally surrounded by cell-walls composed of a substance called (1) cellulose (2) chlorophyll (3) protein (4) protoplast (5) chloroplast. 9(1)
9. A group of cells having a similar structure
and working together to perform a special function is termed (1) organ (2) tissue ((3) organism (4) protoplasm (5) cytoplasm.
10. (2)
Amceda nas no definite shape because its shap changes when it pushes out and withdraw
1) contractile vacuoles (2) food vacuoles (3) pseudopodia (4) ectoplasms (5) endoplasms.
11 (3)
The protoplasm or an amoeba 19 divided intc (1) nucleus and cytoplasm (2) ectoplasm and endoplasm (3) protoplasmic membrane and nucleus) (4) pseudopodium and cytoplasm (5) food vacuole and cytoplasm.
12. (1)
The main function or the contractile vacuole in an amoeba is to regulate the (1) sugar, (2) oxygen (3) waste product (4) water (5) rood) content of its body,
13. (4)
A type or asexual reproduction. found in an amoeba is called (1) binary fission (2) fragment- ation (3) conjuration (4) buddinz (5) regeneration.
1. (19)
In the chloroplast band or spirogyra there are rounded bodies called (1) proteins (2) food vacuoles (3) starch grains (4) vacuoles (5) pyrenoids, ⠀⠀
15 (5) 16. The life process essential to the survival of
the species but not the individual is (1) growth (2) irritability (3) movement (4) nutrition (5) reproduction.
16. (5)
17. Plants may be distinguished from animis by the
fact that plant cell walls contain (1) chlorophyll (2) cytoplasm (3) vacuole (4). protein (3) cellulose..
∙17 (5) Spirogyra is a multicellular filamentous alga. The nutrition in Spirogyra is typically (1) holophytic (2) bolozole (3) parasitic (4) saprophytic (5) autotropic.
18.
The digestive in a hydra takes place in its (1) mouth (2) hypostoms (3) gland cells (4) nematocyst (5) enteron..
19
20. At one and of a hydra's body there are six or
seven processes known as (1) buda (2) testes (3) ovaries (4) tentacles (5) flagella.
204) Hydra often grows several buds on its body wall, The bud resembles the parent in having (1) ovaries (2) testes (3) tentacles (4) flagella (5) nematocysts,
21 (3)
Locomotion in a hydra is mainly brought about by
the (1) tentacle (2) basal disc (3) flagellum (4) hypostom (5) bud.
22% (2)
20118 ± 1. **}{}£ §. M * * * 3* 41 况之下,須加以討論。
第二次預習題
(1) A ABC 14 ✯lé BC11 * * -£ TERAZRAK ZA
真移動時,試求其重心G 的就喜欢
(2) A 3 0 0 » –£ R Q A 1141⁄2 £ ¥! ☀ ABC 2 0 @KBC.
* BC3# 45 ***
(3) © k« £1(1), §** QABC 46✯S HAG IN SK (17 DE ALA
三角形式鈍角三角形別討論え)
*(3)
Nutrition in a hydra is typically (1) holophytic (2) parasitic (3) holozoic (4) saprophytic (5) autotropic.
24. (3)
25. A typs of cells present in the endoderm of a
hydra that take part in digestion are (1) sensors) cells (2) nerve cells (3) interstitial cells. (4) gland cells (5) miscle-tail cells. 25. (4)
Ans.
What are the characteristics of a living. organisa? And try to evaluate the similarities and differences between a simple plant (eg. Spirogyra) and a simple animal (e.g. Amoeba ) In their methods of nutrition and reproduction.
1
The characteristics of a living organism are – Nutrition:""
A living organise neeas tters from external environment either for obtaining energy to maintain life, or for building no its own living material in body.
The method of nutrition for an animal is\ noLozoic and that for a green plant is holophytic Holozofc nutrition is to divest 2 absorb solid organic food in solution.
Holophytic nutrition means to make food from carbon dioxide and water, under sunlight and in the presence of chlorophyll by the mechanism of photosynthesis,
Respiration:
Living organisms require energy for all life-aštivities. Respiratim is the process of oxidizing or breaking down the assimilated food materials or the body substances, with the help of oxygen, to liberate energy, Both animals and plants respire according to environmental, conditions.
Growth
A living organism has the ability of growth. urowth begins as the intake of food is greater than the immediate demand in an animal or in a plant body. The body of the living organism may increase in size and in complexity when growth. takes place.
pxcretion:-
Excretion 19 the removal of waste materi in the body of a living organism. The waste. substances are got rid of as by-products of matabolism,
In animais, usually the waste producea ar collected and excreted by special excretory organs while flowering plants give off carbou dioxide and water vapour into surrounding air. through stoma ta, Heproduction:
All living organisms have the ability reproduce their new kinds or own kinas. Therefore, reproduction is the way to give rise to new generations so as to prolong the off. springs of species and kinds in animals and plants. Reproduction is as simple as the binary fission in an amosha. But, mostly the higher animals and plants reproduce by sexual means, Irritability:
All living organisms possess the spillty to detect and react to changes in their surrounding as well as within the bodies. Most external: changes in the environment are numidity, temperature, pressure and light intensity etc. Movement or locomotion:
A living organism, both planta and aMkNeI87 can move. However, a living animal moves either of its own will or in response to some external stimuli. Plants are not able to move more. freely in environment than animals buz may motivate according to tropisms such as phototropism and geotropism.
The similarities and differences betweer apirogyra and amoeba according to the nutrition and the reproduction ❤
both spirogyra and ambena are dirrerent in the mode of nutrition but have the same process of absorption and assimilation. Spirogyra, and amoeba both rave assial reproduction too. The amoeba, even up to now, naw na rabört to dayeu out sexual reproduction,
An amoeda, by moving ita paeudopodia, encloses microscopic organisms or decayed remains of larger organisms by the formation of food vacuoles. The food in the food vacuoles is: slowly digested by secretions poured cut by surrounding cytoplasm. The food is than dissolved into simple diffusible form.
Spirogora, a green siga, which is capable to manufacture carbohydrates from simpl inorganic materials - carbon dioxide and water. under sunlight.
Exercise for this weOK.
Make drawings to show (a) the gross structure, (b) the detailed structure of a portion of the body-wall, of Hydra. Briefly describe the habitat and the reproduction of this animal..
Make a brief comparison of methods of reproduc in Amoebe, Spirogyra; a mould and a mamana 1,
第一次預習題解答
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