plane only
WOME 真三第張八第日七初月四年未己展夏
WAH KIU YAT PO
郭日倫者
Geography (30)
1979
Questions for Revision:
中學會考試題預習專欄
生
物
(三十)
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Biology (301
Unit 13: Model Test
ANSWER:
2c)(i) Transpiration
(ii) 1. The leafy twig must be
cut under to prevent any
- air bubble from getting into
the xylem vessels.
There must be no
airlock in the system. The leafy twig should be fitted into the apparatus under water.
3. All the joints of the -- apparatus should sealed
with vaseline. in order that no air can get into it.
mercury level
(f) (1) The r
would rise a little because high humidity prevents the evaporation of water from the leaves.
(2) The mercury level would rise a little because
a high
Concentration of
carbon dioxide cause stomatal closure and therefore decreases the evaporation of water from the leaves.
a)(i) (1) A: cortex
B: medulla
(2) A. ultrafiltration
B: reabsorption (i) The blood in C contains
more nutrients, oxygen and -- nitrogenous waste than D.
blood in D contains more.
case on dioxide than C.
“(ii) (1) E is an endocrine gland
and does not contribute to the excretory function of the kidney.
(2) Adrenalin.
(3) Adrenalin is secreted when the organism requires large amount of energy
suddenly, for example, during @ght.
2. functions of the xylem tissue:
1. to transport minerals
and water to the leaf tissue.
2. to support the leaf.
)(1)
photosynthesis
(2) Otoplast
(3) bean-shaped
(iii)(1)-osmosis
(2) evaporation
(3) diffusion
(iv) 1. Thick layer of cuticle.
2. Leaves modified into
spines.
3. With hairy surface.
c)Tube A.
(ii) It can be concluded that
oxygen, water and warmth are. necessary for germination. (1. Oxygen is necessary for
breaking down the food materials to release energy for cellular activities and development.
(iii) Because the reaction is a reflex completed at the
spinal cord level, it is faster
than the sensory impulse of pain which must pass up to the brain to make the person conscious,
(iv) 1 The skeleton of man
serves for the production of blood cells.
2. The skeleton of man serves for the regulation of calcium and phosphate metabolism.
b) (i) X: pituitary
Y thyroid
(ii)(1) thyroxin.
(2) control the rate of
metabolism and the growth in young mammals.
(3) iodine.
(4) simple goitre,
(iii) (1) Thyroid stimulating
hormone
(2) carried by blood (iv) The production of throxin is under a feed-back control. An increase in thyroxin level would inhibit the pituitary to produce thyroid-stimulating hormone so that less thyroxin would be produced. (v) The effect is long-termod. c)(1) When the tip of a
coleoptile is removed, auxin is produced, so the plasticity of the cell walls of the cells in the cut end has no change and the cells cannot take in water by osmosis. Thus there is no change in cell volume, resulting in the stop of elongation.
(ii) When the coleoptile is.
illuminated from one side, the unilateral light cause auxin to gather on the shaded side of a coleoptile, the cells in the shaded side take in more water by osmosis ude to the reduction of plasticity of the cell walls of the cells. The volume of the cell in the. shaded side increase mire rapidly than the illuminated side resulting in the curvature of a coleoptile.
5a)(i) a rhizome
(ii) 1. the presence of nodes.
2. the presence of buds. (ii) It acts as a dormant organ
to pass unfavourable environmental conditions wh with food storage for development of the new shoot when favourable conditions return.
b)(i) pink
(ii) p: dorminant character pink
q: recessive character white For the parental generation: Pink-flowering plant: Pp White-flowering plant: pp (iii) (1) Pp.
pp
GA
P:
Fi Pp
(2) (pink)
PP
(white)
2. Water is necessary for softening the testa and making
G:
F2:
PP pp
the seed swell. It also
activates enzymes which break
1 down complex insoluble food'
r.mto simple and soluble
Substances.
3. Warmth is necessary because it promotes enzymatic actions.
|44)(1)(1) A: biceps
B: triceps
(2) A contracts and
B relaxes, (3) B
1)(1) 1. The presence of
articular cartilage,
2. The presence of synovial fluid.
(2) Joint X allows
movement of bone in all
planes. Joins Y allows
movement of bone in one
(all white)
The difference is due to the simpling error.
(vi) the ratio is 3:1
c)(i) atmospheric carbon dioxide
(ii) 1-respiration
2-photosynthesis:
3-feeding
(iii) solar energy.
(iv) Some energy is stored in the
body substances as the young
cow grows and some is cast. away in form of undigested
minerals.
地
理
(三十)
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46. With the aid of large,
clear diagrams, give the differences of the underground water in the form of GEYSERS and ARTESIAN WELL.
ANSWER:
DIAGRAM SHOWING:
THE WORKING OF GEYSER.
Reservoir of heated ground water
Steam accumulated Superheated Steam (These heated up the ground water)
Downward movement of water DIAGRAM SHOWING. -THE WORKING OF ARTESIAN WELL
Rain
Rain
Artesian Well
Aquifer (Permeable Rock)
Impermeable Rock
Impermeable Rock
Water Table Characteristics:
Geyser is an intermittent fountain of hot water ejected from a hole in the earth's crust with considerable force, accompanied by steam. Some geysers erupt at regular intervals, other more irregularly and spasmodically.
Artesian well is a boring put down into an aquifer in an artesian basin; if the outlet of a well is at a lower level than the water-table, water will rise in the well under hydrostatic pressure.
Mode of
f Formation
From the mouth of geyser. there is usually a vent or a large fault line. penetrates deeply into the earth. The vent and cracks around are filled with water. Superheating in the long, bending vent by hot lava causes the build-up of water pressure at a temperature above 100°C, until suddenly part is coverted into super-heated steam, and the water in the upper part is violently emitted. Cooler water fills up the vent again and the entire process goes on in a cycle.
Artesian well is a special type of well. There must be three layers of rock, with the permeable layer or aquifer lying between two Impermeable layers, and they must be in a shallow synclinal basin or dip in the same.
三期星
日二月五年九七九一层公年八十六國民季中
direction. The layer of permeable rock is exposed at one or both ends in a rainy region. Rain falling at the
outcrops passes through it and is trapped because of the
impermeable layers above and below it. Gradually, the underground water in the permeable layer will increase and the water-table will raised. If a well is drilled into the aquifer, water will gush out provided that the pressure is enough.
Nautre of Water:
The water emitted from a geyser is usually trapped. locally. It seeps down through the vent or fault lines in the
area.
The water trapped the aquifer of an artesian well is the rain water falls at the rims of the basin, usually far away from the well. Uses of Water:
The greatest use of the boiling water is piped to generate electricity known as geo-thermal power.
Water trapped from the artesian wells mostly serves as drinking water for livestocks. It is unsuitable for use as irrigation water since it contains too much dissolved mineral salts which poision the crops. Location of Occurrence:
Geysers occur in volcanic region. The best known examples are those of New. Zealand, Iceland and Yellow stone National Park, U.S.A.
Artesian wells are found in artesian-basins. The best known artesian area is the Great Artesian Basin of Australia, Another large one is in the Great Plains of the United States from W. Dakota to Kansaa. 47. Diagrams A and B of the
following figure show the. changes of the relative importance of the three major activities - agriculture, light industry and heavy industry in China in 1949 and 1970. Describe and explain the changes in the relative importances of industry during that period. RELATIVE IMPORTANCE OF
THREE MAJOR ACTIVITIES
IN China (by value) Heavy in 1949
Industry (7.9%)
Light
Industry
(22.1%)
in 1970
Agriculture -(70%)
Agri- Heavy
culture Industry (22.8%) (43.7%)
ANSWER:
Light
Industry (33.5%)
The graphs show that during 1949-1970, there was a rapid decrease in the relative importance in the agriculture sector but a rapid increase in the industrial sector, especially heavy industry, which experienced the greatest increase in importance. Reasons for the junimportance of ind
in pre war China:
Large scale development of heavy industry needs a lot
of power resources, metallic and non-metallic minerals, Before 1949, China concen- trated on the development of agriculture, Industrialization appeared to be difficult at that time. It may be due to the poor and inadequate developments in communication and transport; the lack of knowledge and poor techniques in exploring and utilizing her stock of natural resources; and the rapid increase in population which resulted in a huge demand for good that capital could by no means be easily accumulated for the pursuit of industrialization, In those pre-war years, all her chief industries had to thrive on foreign investment. Heavy industries were found chiefly in North and Northeast China where coal and iron: could be found, Light industries were scattered in sea-ports and around railway junctions in the cast, where transportation is easy and particular kinds of agricultural products are freely available.
Reasons for the rapid development in recent
years:
After taking over of the Communist Government, nation-wide industrial rehabilitation development scheme was drawn up. It planned, on one hand, to preserve, consolidate and revitalize the existing Industries. Thus the heavy industries in the northeastern provinces have been rehabilitated most rapidly and Soon undergone great advancement. On the other hand, a combined effort to explore new natural resources side by side, with the development in communication networks and to facilitate industrial development was stressed. Examples of this1 linked development of local natural resouces and industry are many. The opening up of oil fields such as those in W. Sinklang has made the development of heavy industry in Urumchi possible. New oil field at Taching; the active mining of coal reserves in N. China and the improved. technique în exploitation of iron in Anshan, for examples, have helped the northern and northeastern provinces undergo. a more rapid development. Newly developed source regions of hydroelectricity have even greater impact on industrial development, The Liuchia Dam to the west of Lanchow, for example, has encouraged the industrial development in Lanchow.
Light industries have undergone rapid advancement, too. With the agarian reform and the establishment of communes, much agricultural labour has been released and. entered into industrial labour force. Productivity in agriculture has been raised and this in turn has led to the expansion in food processing industries. Other examples such as cotton textile industry, has sprung up following the establishment of new cotton plantations at Urumchi, Hami and Turfan. The exploitation of metallic and non-metallic minerals, suc as alumina ând and phosphorous in Western Szechwan has furnished the
Y development of consumer goods
manufacturing and other light industries too.
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