1971-12-31 — Page 26

頁二筅張七第日四十尸一十年亥辛夏 WAH KIU YAT PO

1972英文中學會考試題預習專欄

堅道英文書院主編

生物科(九)

BIOLOGY (9)

Question I

Please insert the correct letters

for the words in the blanks below,

but be careful (Answers given at the

end.)

WORDS: A. HYPOSTOME

WORDS

12.

18.

C. ILEUM.

ER METABOLISM.

G. INCISOR.

1. LEUCOCYTES.

MESOGLEA.

JEJUNUM.

KINGDON.

LIVER

201

K. COELOMATE.

L. LIPIDS

Questi on

Answerss

Q. LACTOSE

A

M. INTERMEDIATE NUERONS

Ν. ΠΥΡΟ

O. INTRACELLULAR.

·R. HYPHAE (SING, HYPHA)

S. HYMEN

VALARVAS

P. LYMPH.

SCRIPTIONS

The middle jelly-like layer found between the endoderm and ectoderm in the Coelent- erata, e.g. Hydra, (It has no nesoderm).

A term referring to the building-up chemical proce ases in the cell (anabolism) as asimilation, and the breaking-down processes (catabolism or katabolism) as respiration (The sum total of chemical reactions occurring in

living cells.)

-

The middle portion of the small intestine in vertab- rates lies between the duo- denum and ileum.

A primary taxonomic or cla- ssification division; all organisms are usually divi- ded into two kingdom5j plants and animals. Milk sugar, a disaacharide found in the milk of all mammals.

An active free-living imma ture animal differing from the adult in form e.gi caterpillar of butterfly,.) a tadpole of frog etc,

White blood corpuscles, amoeboid cells of several. types, found in many mult icellular animals. (eig. lymphocytes, granulocytes) A membrane; the thin fold of mucous membrane which Partly closea the external opening of the vagina in the female reproductive. organ..

A PIX meaning "over or above 0.g. Hypertens- 2on-high blood pressure. The thread-like filaments of fungi as in Mucor bread mould.

Aprefix meaning "under" or "below" e.g. Hypodermis a tayer below epidermi in plant stem or root.:

The projection at the oral or mouth end of Hydra that bears the mouth on its tip. Neurons or nerve cells con- necting sensory with motor neurons, also called conne ctor or association neurons. Organic compounds insolubl in water but soluble in various organic liquids; consisting chiefly of car- bon and hydrogen with s small proportion of oxygen and (in some cases) other elements, including fats, phospholipida, sterols,

etc.

A large glandular organ of vertebrates with numerous functions, including vari ous special metabolic proc

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esses, and secretion of the bile..

A fluid derivative of blood

plasma usually containing

certain white blood corpus- cles, also.

The last portion of the small intestine in verteb rates; this comprises the greater part of the small. intestine in which main digestion and absorption. of food take place.

A front tooth of mammals designed for cutting.

as

Within the cell. cellular digestion in Amoeba.

simple invertebrate with body wall of ectoderm and endoderm only, and an ente- ron as body cavity sed, Kydra.

Question II 1

Try your best to pick out the suitable words in the brackets below

(Answers given at the end.

Oxygen, carbondioxide, water dissolved minerals (1. can

2. cannot) be absorbed into the body of Spirogyra through the mucilaginous layer and the cell

wally

in spirogyra is

The oroplastral shaped and

(1.

it is

larger, 4. smaller)

in si and is present in (5. larger, 6. fever) number than the chloroplasts found the higher green plant cell/ The ability of a bird to builu nest is (1. an instinct or inborn character, 2. learned from the Parents.)

Fertilization in the frog is (1. internal, 2. external),

5. Algae is a group of (1. higher

6.

2. lower) plants with respect. to course of evolution.

(1. is | 2. is not) Spirogyra slippery to the touch.

7. Bacteria are generally classified

, 2. animals)

as

8. The Dodder (Cuscuta) is a (1. Flow ering, 2. non-flowering) plant,

cannot) make which 3. can its own organic food through photosynthesis.

Dodder is an (1. ectoparasite 2. endoparasite) living on (3. plant, 4. animal) hosts, such as the (5. nettles, 6. clover,

sunflower, 8. pigs,

9. rabbits)

7

10. The zygospore of Mucor is produced.

as a result of (1. sexual

2. asexual reproduction, and it will give rise to a (3. new plant. 4. sporangium) under favourable conditions.

11. The two gametes taking part in

sexual reproduction in Spirogyra are (1. similar, 2. different) in shape and size unlike those found in the higher plants and animals.

Answers to Question IIT--

(1).

(2)

2, 3

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

(11) 1

1972英文中學會考試題預習專欄

墾道英文書院主編

地理科 (九)

Geography (8)

Write an explanatory account on the formation of each of the following

Chinook

Trade Winds and Westerly winds

Chinook

It is a type of warm dry. Fohn Wind experienced along the eastern side of the Rocky Mts in Canada and the U.S.A

It originates from the onsh ore westerly winds blowing towards the Rocky Mt. from the Pacific. After rain has fallen on the wind- ward slope, the dry wind blows down the leeward slope. As air des cands its pressure increasee, thus the wind is warm and dry.

The importance of the wind is that it raises the temperature of the Central Plains of North Americe, melts and dries up the Winter snow and so makes grazing possible throughout the winter. It is thus of major economic impor tance especially in the pastoral regions from Southern Colorado,: USA to as far as the lower. Mackenize River in Canada.

(b) Trade winde and Westerly winds

In equatorial regions where the mid-day sun is never far from the vertical, intense heating occurs throughout the year, causing air to expand and become lighter and so nisė. The warm air then flows late- rally towards the poles at about 30° latitude, air becomes cooled and it begins to decend. The surf- face winds then blowing towards the equator where atmospheric pre Bsure is comparatively lower are the Trade winda, As a result of the earth's rotation, the winde blow from the North-east in northern hemisphere, forming the N.. Trade, and in Southern Hemisphere, the winds come from the south-east, forming the S.E. Trades.

As air descends from the 309 latitude and flows equatorward forming Trade Winds, part of the descending air flowa poleward form-

Again, ing the Westerly Winde. being influenced by the earth's rotation, the Westerly Winds coma from the south-west in Northern Hemisphere the Westerly Winds come from the North-West,

11) For each of the followings1-

an equatorial foresu

a tropical monsoon forest a tropical desart

Question III:

Tell me whether the following statements are true (+) or false (0) (Answers at the end)

1. The adult tapeworm is able

to move.

The pork tapeworm lives in the small intestine of the pig.

3. There is no cell vacuole

cell sap in Mucor..

4. Spores of Mucor and Bacteria can be found nearly every where in the air.

5. During sexual reproduction

in Mucor a conjugation tube is formed in a similar way. as found in Spirogyra.

The frog feeds with the sti cky extensible tongue and the teeth lining the edge

Describe the characteristic

features of the vegetation and show

how they are related to the climate

of the region.

(a) Equatorial Forest

In an equatorial forest, trees

grow to a great height and the forest. is luxuriant. The growth of trees is both rapid and continuous because the climatic conditions are ideal i.e. high temperatures and heavy

Most rainfall throughout the year.

of the branches and large evergreen leaves are at the top of the trees: where light air are available. Can- opies are thus formed, preventing sunlight to reach the forest floor where it is dark and gloomy, There fore there is very little undergrowt except along river banks and edge of the forest. But many of the tall trees are used by climbing plants such as Tattan.

(b) Tropical Monsoon Forest,

The trees in a tropical money soon forest are broad-leaved decidue ous trees and this is influenced by a disinct dry season during which the trees shed their leaves. ¤ climatic conditions are not as fav orable as in the equatorial forest, its tree growth is less dense and

There trees are more widely spaced. are also fewer species and à dense undergrowth is common because light

The can reach the forest floor, undergrowth consists of woody thicketa and shrubs

(c) Tropical Desert

The climate in a tropical " desert is hot and dry throughout the year because it is under the influence of the off-shore trade winds all the year round. Aridity restricts its vegetation to such an extent that a complete plant cover may be absent. Usually vegetation occurs in small j Patches and is controlled by the appearance of water. Each plant may also separated from its neighbours by a considerable distance. In some are as

as there may be no vegetation cova for several seasons.

A desert may receive rain from occasional showers, After raining, short scrubs, flowers and other xerophilous plant bloom. rapidly but will die a few days later as a result of intense evaporation in day time.

Questions for next week

() Explain the formation of the

followingas-

(a) Radiation fog (b) thunderstorm

Name (a) a region in temperate】

latitude where rain

fall all the year

(b) a region where rain

rarely falls,

(c): region where Fain

falls in winter

Write brief explainatory notes on) each.

the mouth. ¿-

(.) 7. Spirogyra can be found in7

sea water.

) 8. Mucor has no cell-wall.

9. Mucor 18 a plant that does

not need a supply of carbond ioxide.."

10. The hexacanth embryo of Pork Tapeworm in equivalent to cysticercus or bladder-world.

Question III Angers :-

(1)

(2)

(5)

(8)

(19)