1980-01-04 — Page 27

目播育教頁三第張七第日七十月一十年未己屋夏 WAH KIU YAT PO

(c) From the graph

1980

determine:

中學會考試題預習專欄

Dry weight

生物

(十三)

114

明德出版社梁永華提供資料

12

hiology (13)

10

W. W. Leung

(Mill & Dale Press Ltd)

8

Unit 10: Growth

報日僑

during this period. The tubers lose their plant materials as they respire

Aod ag. Rome of their

stored food are

converted into the

五期星

the coast.

日四月一年〇八九一展公年九十六國民華中

arch finally collapses. The end of the headland is then

The narrow stretch of water that it encloses is known as a lagoon (Fig. 1B).

isolated and fretted intoa rocky

pinnacle which is usually termed a stack. (FIG. 1D)

materials of the nev

plants.

(1): 2.2 g

1.The following experiment is

designed to

measure: the rate

of growth of a main root.

A newly germinated broad

bean with the radicle about

3cm long is used,

ema

7

Time (weeks,

radicle marked with

Indian Jok at 2mm. intervals

the loss

pin

cork

s in dry. weight of the old

tubers and

(2) (11.2+13.8) x = 15.0 g (d) Some of the mass, 3.20 **

Joat by the tubers may be going to leaves and stems. However, the total mass.gained by the stems and Jeaven in 15.0g... within the same period. The difference can be explained hy. the fact

that the stems and

Jeaves carry out

photosynthesis during

this period.

1980

FORMATION OF THE STACK

Land

B.

Faults

Sea

spit curves

Land

SEA

wave.

the total gain in

spit extends

landwards

dry weight of both

中學會考試題預習專欄

Lagon

PLAN VIEW

the stems and

leaves

from 4 - 8 weeks.

Land®

nning.

wet

cloth

(a) Fhy should the radicle

he harged in a position downward towards the wet cotton wool?

(b) What is the purpose of

using

(1) vet cotton wool?. () black cloth?

Which interval shows the greatest rate of growth after 2 days? (2) Explain why a rapid

growth.nccurs at this region. (1) which interval do you think has tie highest density of cell nuclei?

five 'explanation. What would he

observed if interval

1 has been removed

at the beginning of the experiment?

(e) What type of growth is

being investigated in this experiment?

The following graph shows the changes in. dry weight of potato.

tuhers fems leaves and.

8 weeks after

the tubers sprouted:

(d) Give a reason for the

difference between

ANSWERS -

(c)(1) and (c)(2).

1. (a) Since radicle of seeds

shows

positive

geotropism and positive hydrotropism, both the. gravity and water vapour from the wet cotton wool in this experiment would force the radicle to grow vertically downwards without bending. Therefore accurate measurementa can be made (b)(1) Wet cotton wool

provides the

germinated seed with

water (in vapour form) for growth. It also acts as a stimulus to force the radicle to grow vertically -downwards.

Black cloth is used to prevent light from entering the flask so that the growth of radicle will not be influenced by the light effect.

-(c)(1) Interval 3.

(a) What is the advantage of using dry weight as a neasure of: plant growth? 2.(a) (b) Describe and explain the

格概况一。

change in dry weight of

the old tubers during

this period.

天氣報告,卅分,天氣

段告。

台用英語播出之「世界

盤早益」,北五分, 天氣報告,卅分,新闖「完录。

·八時,紐規「朝朝節」。

[生半日閒」,四十五分

簡報天氣報告,

商業第一台及區, 台

十分,天氣報告-五十

六浔十五分,主臨四十五分,

(2) The cells in this

region undergo rapid elongation by absorbing water. in the ceila

(d)(1) Interval 1.

(2) It is because interval

1 is composed of many. small meristematic cells and therefore the density of cell nuclei is the highest.

(3) The decapitated

radicle will continue to grow for a short: period.

(e) Primary growth.

Dry weight shows the actual changes in plant materiala, (b) The dry weight of the

old tubers decreases.

,卅分,你的劇塲「

「香港第二台 張美賢」,

殺星星,月亮,無太陽

四及一〇三兆赫:

〔立整調類)九

天氣報告,五分,「朝」「爭期再來」,卅分,

·九時,必銀直撐到一祆:「川為芳于

1卅分,天氣報告

十時,貝西美點

三時卅分・「大手

. 十一時 - 凱詩你嘅

天氣報告,潮汐卅本及藝活有獎。 「朝群雯平及」,十五分「姬女天地」,今日釋「天氣報告,單是老友記 聲,卅分,天氣缀, 時間,开分,天氣報告 歐巴拉達行。 時,廣播劇發商業第一台

| 分,新開簡報及天氣

「粉

為來早養」,十五分,卅分,主婼親。

|告,四十五分,天氣報 十五分,妙旋律,及記 分,主婦狂想曲 5

. 五時,「世界童

四時卅五分,「無

十二時,妙韻寄心集」,卅分「跳羲」

妹」,卅分,新聞及天

一十五分,粵曲,卅分,

..七時,「奉告」,

[樂。五分,「翡翠劇垭」之一

出,音樂點 ” 臨時卅分,天氣報

·三時卅分,天氣報

「網中人」,

·八降,「名與風溉

十二分,「歡樂今宵」

∵寿・「朕」,

十時卅分,新聞簡

凌為集卅分,辅,卅分,新開簡報,一一告,時代曲,四十五分,報,四十分,「偷得浮

九時,新聞簡報 五分,天氣報「「冠軍之夜續集」... *粵曲點唱。:

分,「中央南塲懿榮值;哈展至是上角民及海城「撒马大老友記》:「莫邦音樂節日,卅分,

天氣報導,卅分,新聞

十時,新聞簡報, 天氣報告,在向消息,機場待烧除一

「香港技工除對西漢

[ 九時,TAL Be 簡報 穎哈羅單是天氣報告,賞心樂事,四十五分,明日節日阵 凌及一時四十五分

RT AU 以泰密」一)。

精塞一本卅播字雜

干。·台九州

華

星粵時分十

語

月開播曲。

洲分,天氣報告及節目

+1時卅分,『前 十二時,「射精英

七時・「淼淼妙韻 函館施施然》 3淸隻音樂,十五分,天

·I-HERE

。

于一時,『空中攝

六

楼,新聞提供及

地理 (十三) 明德出版社李婉儀提供資料

·GEOGRAPHY (13)

Y. Y. Lee

(Mill & Dale Press Ltd.)

Questions for revision:

25.What characteristic coastal

feature is shown by the photo- graph below ? Explain its formation.

ANS:

The photograph shows a temporary lagoon at Tap Shek Kok in the Castle Peak Area. It is a sheet of salt water: separated' from the open sea by sand banks.

The lagoon is formed by the landward extension of a spit when the waves attack the bay Pat an oblique angle. The swash

and backwash will cause

material to be moved along the coast. This movement is: called longshore drift,A sudden change in the direction of the coastline does not affect its course and the material being carried will then be: deposited in slack water to form a spit (Fig. 1A). The outer end of the spit may curve landward because of wave

refraction and eventually join:

小曲,十五分,「

六時 - 新湖簡報及,投笙歌」。.. 一分,悲歡蔑合「黃色糖會,天氣報告及擊南海 陽下 | 天緘報告,繼續『夜

香

十二時,新南灣畫日播研究

一梅五十五分,全

《繼域廣播天地》,卅一,天氣報告,《發雞腿 無線翡翠台

機

綠奶電台

[桀四份...

· 九時卅分 粵語長

「黹公案」,卅分,「三

·義時,「奇謀妙計

十時卅分:「神勇

十二時十五分,全

26.What coastal features are

shown by the photograph: below:? Explain its formation with the aids of diagram.

ANS:

The features shown on the photograph are vertical cliff and stack.

This photograph is taken from Orkney, England. The region is made of well-bedded sandstones, with vertical faults (FIG.1A), As a result of.. marine erosion, vertical cliffs

and stack are formed.

Being a headland, it is attacked by waves armed with rock from all directions. Wave erosion concentrates along the vertical faults, which it is the weakest zones of the region, caves are formed on both sides. (FIG,1B), When two sea-caves on opposite sides of the headland' unite, a natural arch is formed. (FIG.1C), With prolonged wave erosion, accompanied by other forms of erosion on the upper parts, the roof of the

·山天

十一時,新聞簡析 五十五分,漁農葉品于兇股票報導及午儒小源 ·卅分,大牛商。

肉牛島本地及外來生牛七,美麗的音

及外來生低格低, 價格及長沙湧磨游本地、苻

及天氣報告,今是馬頭」

下午旋律,廿八分,軟的音樂」

天氣貘告及 南域天光時、「醉人的音 一賂,銅隨簡報!」分,「燭光下」。 [繼耱「十[i]分,共用台普遜話新聞及樂部..

三時,新聞寫報,

人時間心

新預簡報,一改計年

快變時光七八九,卅分↑THE PUSSYC

AKO FEEK?

九時卅分,體服

十一時卅分,新聞

Vertical joints.

Sea Cave

Sea

Arch

Stack.

Vertical Cliff

WAVES.

WAVES

WAVES.

This part has been

eroded

利亞本報分類廣告

「申請撥電話H-221583

告,海沙

華南海域天氣報告。 七時,新聞天地:8.

告告分

-材還發卒晨」,千五分

天氣報告:五分,一朝錯價格(繼跲

卅分、新风簡報、《

,天氣報告,雙汐,开|[點唱1003。..媺哈殍戰悬!)

卅五分,齿 九蜍,懂的鹳高: 八時,怒吼,

九九。北分 - 新報道 七持,河&溫九

天氣報告,三分,「

,四十分,天勇報告.... 言形分:「太不山下漫 芭」,百花齊放·卅分,

九時,新聞簡轕及「天氣報告,織續「聽吓 、四時,新聞簡報- 著亮日記」第九十四回,天氣總告,「青泰安响張节日日好降光)。天氣報告·《鐵雄年青

「卅分,新開簡報,一

·五時,新聞簡報

步

·濟行情黄道

「天氣報告:她「太平天氣報告,警察通訊 C座。

十一時,賽馬世界

【山下衰步:

五分,入對珙范安

今樂府

香港第一台 八方

• (ER)POINT

...十時卅分,「耳

【及天氣報告,今歷馬明一笵哈雅屏及!) 大棒,新阳報告及一角牛日本地及外來生牛一 八時,新聞簡報, 街,新聞簡報卅分,黃明簡報,(體

趙健心樂事》。

(禮結賞心樂事) 一爲止。

台時光分,實地轉

卅分,新聞簡報,进一麗的第一台 十一☆-新開簡報播阿力球賽事直至完塲

續食樂事】....

福天使。

搖擺天使》。

〔我緻搖樂天使 年資人時間:卅分,新

分、新聞簡報,一類

一時,新聞簡報!! 二

- 新聞簡報 時

·UR-HASE-

*九時,節日介紹,

七時,早及節開

·千分,追撰分。

孫醉打八金明。 四時,下午茶,开

3. 二時五分,六合彩,

五分,粵語長片:黃飛 第二分,午間新聞· 十二時,節目介紹

八淼泓年青人降聞 》, 時間:縣治兵兵,