頁二第張七第1日四廿月正年子壬歷夏 WAH KIU YAT PO
日橋華
1972英文中學會考試題預習專欄
道英文書院主編
are depending either directly or in- directly on green plant for their food aupply, and the oxygen from photosyn- thesis for respiration too,·
生物科
Biology (19)
(十九)
Can you answer the following que um tione?
what would happen to the living worl if all the green plants on this Earth. ite auddenly?
Plante and animals need air because
The function of the plasma membraní
The two main functions of the pseud opodia in Ameoba are
State the possible functions of the nematocystsan Hydra
The tentacles of Hydra can be baed to
State the functions of the following structures in insecta:
Feelers (or antennae
Anal cerc1-
Describe significance of the high reproductive capacity in fish.
The importance of caterpillar stage in butterfly
and that of the chrysalis (pups)
The function of the jelly-coat sur rounding the frog's egg. 18-
The function of the air; chamber. in tna bird 'e egg 18
The three maan functions of the gre foliage leaves are:
State two functions of the veina, în a green leafi
The purpose of shedding the leaves in the dry season or cold winter le
The function of the xylem tissue in
plant is
while that of the phloem 18
The root hairs are used to.
The part of the plant commonly calls
"wood Is the
which 16. used for.
The function of the guar ella
the leaf la
State the functions of the following: parte
Sepals:
o, Petalsi
Stamenei
Carpele
20. Describe the changes in the floral
parts after fertilizationi
Plants and animals need air because air contains oxygen and carbon dioxide. They need the oxygen for respiration - to release energy for bodily activit ies to maintain life.. The green plan obtain the carbon dioxide for the aya- thesia of organio matters for bodily needs too.
The' plasma membrane of a cali le seme
permeable which can control the pas- eage of chemicals in and out of the cell, such as oxygen, carbondioxide food, and waste oroducts etc. - To cer tain: extend can help to protect the cell body from mechanical and chemical in jury too.
The
The 2 main functions of the paeudopo gia in Amoeba are to capture food. particles
cles and for locomotion.
nematocyetë in Hydra can be usœu for the attachment of the body to the substratum, to paralyse the prey be- fore reading, for defence against enemies, and sometimes to attack other omall aquatic animalo 100,
The tentacles of Hydra can be used to papture food and locomotion (looping, somersaulting, swimming).
The antennae or fasters of the Insecte are the chief sensory are sensitive fo touch, smell, taste, temperature ohange as well as sound too,
The anal ceroi dre situated at the. posterior region of the insect body,They are the feelere behand also sensitive to touch. sto.
The 11an 18 producing a large numbei of egg because many of the young fish are serving as food for othe aquatic animale and larger fishes, and only a few are able to reach th adult or reprosuctaye stage. In case: it produces only a few eggs, the fieb
bound to become extinct sooner or later.
The larval stage of an Insect is atage of quick feeding and rapto growth. Many insecte are increasi in size, only during this period.
The pupal etage through ecayere,
the etage of change of body form from the young to the adult The caterpi lan of the butterfly is therefore passing through the growing t
stage, while the chrysalie stops feeding and metamorphoses into the adult butterfly.
The jelly coat around the frog's eggs can be used for protection against being eaten up by aner 16A, DECAVER, F is die taa teful; it can alsı, stick the agga together in a group, and at the same time it allows exchange of: gases between the eggs and the surrounding water for reepiration.
The air chamber in the bird's egg le acting as a shock absorber to prevent the age from being broken easily
The three main functions of the green foliage Feaves are: pnntosynthesis, transpiration and gaseous exchange.
The functions of the veins or 860- ular
bundles an à green leaf are: to act as a skeletal support of th Learn
and to conduct water and min- eral alte to the leaf cells and to carry the manufactured food away the lutem,
1972
四期星日九月三年二七九一座公年一十六國民華中育教
F1 U-b & b-cA C-Q FEPIT, -(b+c)2 x(b-C)-(c+a) (c-a) - (a+b)2 (a-b). bk Q-b Ŕ b-C RC-Q to -(b+c)
中文中學會考試題預習專欄 數學科(十九) 一張正邦一
十八次預晢題解峇
大下列請むと因む
x2(y-3)+Y2(8-x)+8 (2-4)
| x=y et y = 8 = 8=XQ5 vi
vg Ht Fq xx xx Pp x Y Q J J R
ŠOLAKIBA
x2(4-3) + y2 ( z −x) + z2 (x −4)
k(x-9)(4-8) (8 − ×)
0+ 2-4 = k(-1)(−1)(2) x2 (4 8 ) + y2 ( z − x ) + z2 ( x − y)
− ( x - y )( y − z) (} -ð)
2) A (8-8) + Y ( 8 - x)2 + 3 ( 8-y
Á € P k k X X Y X Y Z R JA 皆鳥此必數之式
02 1(4-3)+4(3 -x)+3(8-9)?
·k ( x − 9 )( 1 -8) (3-x)( 3 + 4 + 3)—4
0+8=2=k(-1) (D)(4)(3)
· X(4-8)2 + 4 (3 - X)3 + 3(x-4 -(x-4)(Y~3) (3 ~ X)(X+4+% }
x3 (y-3) + 93 (3 - x) + 8° (x-4),
-* x=4 7=z 3=X BY IL & $6
$7 14X-754-8 588-X 5 THE *k de FX FH vX X-YQY-888-X VE 比函数之因式
* X5 (4-3)+45(8-x) +8=(x-4)
(x-4) (4-3)(8-x)[ k(X3+ y3+z3,
Il (x2 + 128 + 8x+x42 +882+ZX?" +mxyz]
X=0 Y=18=2 KAOTJ.
30=-18h-121
X=C Y=1, 8=3, Aλ013
240 = −6(28 k+1zl)
y=23=
代入の得
180=-72 k-998-12m
34解得
- l=m=-1
x` ( y − Z ) + y2 (}~x) +8 (X-Y
(x− y)( y − 3)(z ~ x) ( x 3 + y3 + }·
x3y + y2 z + z2 x + xy2 + Y82+8x ̈
14) IDA
(b+c)
· (a - b)(a−c)
(a+b)
((-a) ((-b)
x(b−c) - (c+α)2 (c-a) = (a+b)2 (a+b)
SF = * -(b+c)^(6~a) - (C+ a) (C= aj -(a+b)?(a−b) = k( Q-b)(b−c)(-a) -a $9=0,6=1, C=2 KA013
~(142) (1-2)-(2+0) (2-0) -(0+1)^(~- = k(-1) ( − 1 ) (2),
kat
((+9)2
((a+b):
(btc) (0-6)(Q-c) (b-c)(b-a) ((-a) (C-ho
(3) 1878 (0-6) (Q-()(x-a),
(b−c)(b-a)(x-b) ((-axc-b)(x-
• M4 R1 =
(Q-b)(b−c)((~Q) (x~a)(x− b)(x− :-) \-Q^(b−c)(x-b)(x−c)-6 (c-Q)(x-a)(x-
- c2 (a - b)(x− ∞)(-9]
FA (Q-6) (6-2)((-a) Fa (17-a (b-c)
• (x-b) ( A-C) - b*((-a)(^-a) (8=c)
('(a - b)(x − a)(8b) 261a-b)(b))
(X-a)(x-()-C?(a-6)(x-a) (8-6), 4}
| 0-0-¿7Q-b[x-a)(x ->) = £(4-6)
=0 RADIY
例
(-a-b)(α-c)(1-0)
(x-a)(8-b)(^^<).
BAC
211
21 AX2 pBX £2= ) + B
刚
(C+α)
解說
(b-0)(6-4)
= = =-16+()} (b-C)-((+6)(c−q)=(a+√(a-g
ra-b){b-()(Q)
are sa
:(X-V(X-2)(-3)
(X+)(7-2) (3-3)
** X+x-3=A(1-2)(x-3)+B(X-1) (X-3) + C(X-Xx7 1+1-3 = A(-0(-2) H= -2
4+2-3=B (1X-D
9+3·
= C(2)(U)
Sepala!
Petalai
Stamens
Carpals
1.Stigma and aty.
¡Ovary
ovüle stalk
7. Micropyle
Wind" poliinated flowers are usual scentless, dull-coloured, and insCON
picuoue becasue
The three common agents for poll tion or flowers are
ANSWERS
Ir all the green plants on this earth die suddenly, all the animals and oth plante (Fungi and bacteria) will die
too, because all other organisms
The purpose of shedding of leaves to avoid excessive loss of water ing the dry.. Beason. The plant at thin time, will also cease to grow partly because of the lös tempëra tje which slow down the activities of the body.
17. The xylem tissue of a piant 19 to-
conduot water and mineral esite from the root to the stem and leaves'ERO1 the phloem is used for the transport. of organic food from the leaves to.. the leaves to the stem and the root.
The root nair are used mainly absorb soil solution because of tus considerably large surface area they
to anchor the roots in position too.
provide. They can he lov
17 The part of the plant commonly caliwo the wood in the secondary xylon found in the older dicat root and aten with secondary thickening, is used to conduct water and salte as well ae to support the plant body mechanically.
18. The guard cells or the leaf control
the rate of gaseous exchange Loxygen and carbondioxide during respiration and photosynthesis). They also help to slamanste the excess water through transpiration.
Szata ine Tunations of the following part
Je pa
Stacons
Carpela
The outermost whorl, whion is ugually green "in colour and is used to protect the flower in the bud stage.
are colourful in the insecti pollinated flower to attr not insecte which help. in At the base pollination. of the petal in this case 1 usually found a gland. (notary) to produos nett ar for the inasota
They" possess the anthers. with pollen sacs inside which the pollen grains are formed.
They are grouped at the centre in which the ovule are produced.
20. unanges of tas, flower arter fertilis
sation Sepals
usually they withered and drop off.
D. Petala
ȘTAMONU”
they dry up and drop
thène also withered..
Stigma and style- remnants remained - drying
Ovary
111. Ovules
mindels
1T18 #Wollen to become the Cruit.
they enseigen to become the needs.
this ovu KE
stalk bem
comes the
seed stalk holding the sad to LI Ovary wall
Iicropyle-this holes
remains äi the seed, and 18 usSU to absort water during seed germin- ation,
The wind pollinated flowers are abusi ly sosntless, dulled-coloured, and insoon picuous because they do not have to attract insects for pollina tion..
The 3 COREon agenta ron pollination of flowers ATOL
wind sige wheat, rice; insecte Baumanise Gladiolas; water e. Br water lilsit-