1968-05-16 — Page 15

公年七十五富集中

presence of starch can be show in ali art of the luar, but the part

is still starch-frès.

17 MAY 1968

育教營事

假三張四第

日十二月四年申比夏

WAH KIU · YA”

CITY HALLOT

日六十月五年八六九一

新橋

0968

英文中學會方

lign for 4 Taw hours.

生物科 (廿九)

素。

Biology (29)

43 1554 1955 JUKI USTA PUKAS FURS ASTI BUKS

LESSON TWO

CHAPTER OU

NUMBERS AND FIGURES 3

O Eighteen

Answer to the exersisa O fast veeki

1. (a) What is photosynthesia? State the conditions

necessary for 1t 15 éécur.

(b) By what experiment would you prove that (1) carbon dioxide and, (ii) light ar essential for photosynthesis?

And,

16-5-1958-**

(a) Photosynthesis is process in which certain

carbohydrates are synthesized from carbon dioxide and water by chlorophyllous cells in the presence of light, oxygen being a bys product. The summary equatios repréàinting the process of photosynthesis is conventionally written as follows:

J

620

Radiant energy

Chlorophyllous

colis

C61206 608

The conditions necessary for tab. procese of photosynthesis äre: (1) light mast bé present; (11) Chlorophyll must be present; (iii) carbon dioxide must be available; and (1v) oxygen must be evolved.

(A) USEFUL NUMBERS:

Englis

Arabic English

Arabic

Zero

18

One

1

Wineteen

19

Two

2

Twenty

20

Three

3

Thirty-three

33

Four

&

Forty-four

看看

Five.

5

Fifty-five

$5

Six

6

Sixty-six

66

Seven

7

Seventy-seven

77

Eight

8

Eighty-eight

88

Nine

9

Ninety-nine

99

Ten

10

One hundred

100

Eleven

11

One thousand 1,000

Twelve

12

Ten thousand

10,000

Thirteen

13

One hundred

Fourteen

14

thousand

100,000

Fifteen

15

Sixteen

16

Seventeen

A controlled leaj

17

(8) USEFUL EXAMPLES :

(1) 1

(2) 12

(3) 123

(4) 1,234

(5) 12.345

(6) 123,456

(7) 1.234.567

(8) 12,345,678

One

Twelve

One million 1,000,000

•

One hundred and twenty-

three

One thousand two hundred

and thirty-four Twelve thousand three

hundred and forty-five One hundred and twentys three thousand four hundred and fifty-a12 One million two hundr

thirty-four thousand :' Five hundred and sixtys Reven

Twelve million threa

burtdred and forty-five thousand six hundred and

(b) (1) Experiment to show that carbon dioxide is

essential for photosynthesis to take place

• Caustic potash

A March-frie = piant has one of its leaves "inserted into.

in the bottom of which thefa kosk

potash. The Arbon dioxide

hours,

in the

what do you understand by serobie and anaerobie rospå ro tion?. Compare as fars as you wah, the nafferèness between respiration and photosynthesis.

merobic respiration 18 an oxidatims process which occurs in the presence of sxygsh. During this process, the intake öxygen combines with the carbon of the carbohydrate, đó tổàt the products of the process are carbon dioxide and water.-In other words, there is ên, antiye brèslitown of the carbohydrate and complete liberation of energy. The process can be submarited as an equation which 181*/

06H126

6002-20 • Energ

In shaeròbic respiration, it occurs only in. the absence of a free oxygen stipply, so that the carbohydrate. As broken down incompletely with only partial liberation of inery,

The by-products of the process are carbon dioxide and ethyl alcohol. The process of the respiration is also can be summarized as the réllowing equation; -

+

200, Energy

The following table is a comperison of the differences between respiration and photosynthesis,

Raspiration

It takes place in all Liring cells et plants or animis. Mukartals.neaessory for the process are oxygen and organie - ecmpounda

13. The cheni uz 1, energy

stored in the organio' ednpounds are böhverted into kinetis

The process takes plàsë in both day and night. It takes in oxygen and gives out carben-- 41öriés,

The products are

rbon dioxide and

Photosynthesis

It can only take place in the chlorophyllous cells of plants.

Materials necessary for the - process are water and carbon dioxide,

The light energy is stored in the organie compounds as in the form of chemical energy.

The process takes place in daytime only.

It takes in särbon dioxide and gives out 9278.11.

The products are oxygen and carbohydrates,

(10) 25,535,335"

differenca bel

the following num

hundred.

(u) 5,689)

HONGKONS

+500,604)

1,689

357,913

plant

CLIB

ARIES

In thi

Questions for thin whaka

{a} How would you dia tingutan between pollination

à #IoMur? Deadribs in change) odeūp in a plows2.

Mike the

(b)

placed is the

Write în numbers the following Figurest

(*). 300,004

(b) 33,567

(*) 1,345,789

(#) - 3,000,076

1876

ཏུའང་

(0) 19,753

315,680

3,266,578

Three hundred thousaf Sand four

(b) o hundred and thirteen) tousand five hundred and sixty-seven (a) One million three nude) dfed and forty-five dusand seven hundred and eighty-nine-

(d) Three million and seven-

taiz

(e) Nihe thousand eight

hundred and seventy-six (r) Nineteen thousand sèven hatred and fifty-three (2) Three hundred and fitm teen thousand six hun- dred and eighty

{n} three allien thi hàn dfed and forty-six thousand five hundred

and seventysesi

1) Eleven million/

dred and éleve

one Hundred

(J) Fight mi1 120 dred and eff

(B)

the epigeal and hypognal.

rpe of germination give one stampla. to Iliustrade the stricture of sad and write an illustrá Led têéoLES &

Kød of germination.

(c) Nine thousand nine hundred

and nine

(d) Twelve thousand and sixteen- (e) Twenty-four thousand six

hundred and eighty-two

(e)

(f) Seventeen thousand five

huntiri and eight. (g) Nineteen thousand and nine (h) Five thousand three hundred

(8)

and twe

*(K)

(1) Three hundred thousand ŠIA

hundred and seventy-two One million one thousand and one

Write in numbers the followi

792

(b) #,340,712,

(4) 7,884

9,998

(8) 10,875)

number

498,72

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