報日僑華
真四第張五第日八十月四年乙
WAH KIU YAT
三期星
育教僑華
中學會考生物(課程乙)
試卷一答案
中學會考生物(課程乙)
試卷一試題
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(c) han defency' duke e si deci
and a high patch the winc
1. bland tris would you expect ta set. Ces maine in thec
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niko mà the silum, at man in the table inhou
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Geveorauna for the change;
6) Supaya pensabile scusation exjau why vivere ili
'18) ~ What's the raportime of test tube bias in engeruncin
Dubes flects of 134ng kau tố
lat ihme secondary wind chamowana whach wi appena in beya ak
pel, gadwily (bar neat of ja vaak memen) à
Dig at means tile place in the matatalian utaran alles indelen Overal
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he gnon, erplan the "relanpuhay of the "keičiamid" "budy
and explain the 'stungs then
ihi esternal kengard approach 45°2"
thebehavuma ul both the rabbli and
10 thederm) of a sekach
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H.K.C..E1975 Answer to Biology (Syllabus F) Paper I
(1) Avarage rate of water intake
(15.Com
10.2cm3)+ 30
iper 0.18 aper hr.
(ii) Avemgemte of water lasa is
(475.1-470.9 g) + 30 1.0.0.14 per hr.
(iii) Perventage of water retained
by plant during 30-hour
1.0. 22.2
100
(1) The process by which water is lout from the plễnt to known as: tmnspiration...
..
(c) Waya in which the plant uses
the water it retains hieti.
(1) For making of food in the pro-
seas cf photosynthesia,
(ii) To maintain turgar of cells. (iii) To maintain turgidity which
provides a kind of technical support of the various oranzia 2.g. eten end leaves, and is n. direct cause of certain kinds of movement of plants.
(iv) To replace water lost as a
regult of transpimtion and or. eva pomition.
Plants
auck ao cacti which grow in dry areas. reduce their rate of water loan by reducing the Burface area of leaver, resulting in their leavei Looking Tike: spines or fine needles and having sunken atoma ta which make it more inconvenient. for loss of water. (b) Plants growing in soil which in
deficient in iron show obvious abnomality in that the leaves are gmall and yellowish in colour (chlorotis). This is due to the fact that iron is a pomponent of chronetin of the rucleus lack of which gave the development of leaves to be slower and thus. smaller. Iron is also essential eg g. catalyet in chlorothylt syn thesis. It way he considered to be associated with the pigment bodies (chlowplanto} in lant. cells. Thus lack of iron causes leaves to appear yellowish or even whitish in appearance.
(c) Anaemia is a deficiency disease
caused by lack of iron in diet. This is due to the fact that iron
o needed in the formation of haemoglobin in the making of red. blood cells (erythrocytes), a. shortage of which would cause a perean to be enemic.
(Cl(2) Undur a high rower microscope
the red blood cells jeared to
日八廿月五年五七九一年四十六國民華中育教墉
have ahrunk, becoming muan
LV6~-
led. This is probably due to the fact that saline solution serto e greater osmotic pressure, on the red blood cells and thus 'cause 2 withi suvel. of water nolemules from the cell contents through the cell membanne.
(B)(1) The fluid which occupies.
apace in enom as tinous fluid or lymph.
(ii) Rel blood cells are found in
blood but not in lymph. (iii) What passte from the capillary
into the bony cells could be
oxygen and food compounds such ac glucose and- aming nõids,
(iv) One process which enables food to pass from kapillery to cells ic diffusion..
中學會考新數學答案
II.K.C.E.E. 3975
KODERN MATHEMATICS · PAPER
Sugrested Solution
1. 3x + x + 12+2x-18°
tan
6x
1860 X 310
3. Let be the radius of circle, using intersecting chord theoren
(2Ř - 2)(2 = (8)(6).
116
R = 17
4.0
120- 172.8
100- 100
The percentage increase in åts.....
5. Let A be the amount al P he the
capitel. Compound interest A=P(1108j3
Simple,interoit AP+P
1-334P
100x3
1.3P
Difference between them
= 1331F -7.32.. = 0.0312
Then
-X-60 Lot its roots be pia.
Let the
Thon,
Then, N
5
比倫與無大偉面場 加英
!幕銀上搬蹟事生一租佛
be
Thon, x2+2x-20
OR
is the required eqt. 7.x-1<< 2x + 5 {
X-149,10
2X45 2x > 4,
Then 2<X 10
-B(K)=3x+y+50
£(52) = 18 +2+50=7) (max.) (6, 2) is the onower.
3. 1+2+2+3+ 3-4+
+ 1)(n+2) Let7102=2
+n (n + 1)
}n (n + 1)(n+2) = • 1 • 2 • 3=2 L.H.S.R.A.S. It is true for n=1 Acsume it is true for n=k
1+2+2+3+3+4 + ***+ l» (+1)
= 3 x ( 1 + 1)(x+2),
Add (k+1) term to both sides of
1.2 + 2.3 + 3.4 + ... + I{k + 1)°
+(k+1} (k + 141)
• − k (k + 1 ) (k + 2 ) + (k+1} {k+
}k (k + 1) (k+ 2) + (k + 1)(x+2) (x+1){k+ - 2) (yk + 1}
} (k +?) (k + 2) (k + 3)
It makes no difference when of the right-hand side of egt, is) replaced by (k+1) and this will lead that it in true for all valpe of n wherén is positive integer. St - 50+ 50-51-52
$4100
100 101 102 - 343400
343400 44200 $299200
16
12
Area of cardboard = 16 x 12192sa.com Area of photograph-x1920q.cm
Let the dimensions of photogmph
Then 12-15 (uniform width all round: the photograph)-
xty = 4 after solving we get x=12
y=8 ky='96 The dimensions of photograph is.
12cm. by 8cms
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刊週遊旅頁一第張六第日八十月四年乙