2003 - JAMB Biology Past Questions and Answers - page 2

11
The stunted growth of a leguminous plant suffering from nitrogen deficiency may be corrected by inoculating the soil with
A
denitrifying bacteria
B
Saprophytic bacteria
C
Rhizobium
D
Nitrosomonas
correct option: c
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12
If water that has been coloured red is poured at the base of a wilting plant, it will appear as a red stain in the cells of the
A
xylem
B
epidermis
C
phloem
D
parenchyma
correct option: a
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13
The aim of the experiment is to demonstrate
A
that in mammal gaseous exchange takes place in the lungs
B
the part played by the pleural cavity and diaphragm in respiration
C
that a large amount of oxygen is absorbed by the lungs
D
the presence of carbon (IV) oxide in the exhaled air
correct option: b
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14
In the experimental set-up, the rubber sheet represents the organ called
A
pleural cavity
B
lungs
C
diaphragm
D
intercostal muscles
correct option: c
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15
The dark reaction of photosynthesis involves the
A
reduction of carbon(IV)oxide to organic
B
release of oxygen and the splitting of water
C
photolysis of water and the production of starch
D
splitting of water into hydrogen
correct option: a
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16
The experiment is used to demonstrate that
A
plants lose water through guttation
B
transpiration occurs through the leaves
C
water is necessary for photosynthesis
D
leaves are important to photosynthesis
correct option: b
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17
In the experiment, the layer of oil serves to prevent water loss
A
transpiration
B
evaporation
C
osmosis
D
guttation
correct option: b
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18
Organisms I, II, III and IV have surface/volume ratios of 1:2, 1:3, 1:4 and 1:5 respectively. The organism that is likely to have the most complex transport system is
A
IV
B
III
C
I
D
II
correct option: a
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19
The part of the mammalian digestive system where absorption of nutrient takes place is the
A
ileum
B
colon
C
oesophagus
D
duodenum
correct option: a
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20
The best method of propagating sugarcane is by
A
Seeding sowing
B
Layering
C
Grafting
D
Stem cuttings
correct option: d
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