1985

JAMB Biology 1985 past questions

44 questions from the 1985 JAMB UTME Biology paper. Free, with answers where available.

Biology JAMB 1985 Q1
Viruses are regarded as non-living because they
A
can neither reproduce asexually nor sexually
B
cannot survive in their respective environments
C
do not possess characteristics to the next
D
can neither respire nor excrete.
Biology JAMB 1985 Q2
Which of the following pairs are fully adapted to terrestrial life?
A
Ferns and algae
B
Ferns and mosses
C
Bryophyte and flowering plants.
D
Flowering plants and conifers.
Biology JAMB 1985 Q3
Semipermeable 4. Freely permeable 5. Dry
A
1,2,3
B
1,2,5
C
2,3,5
D
2,4,5
E
1,3,5.
Biology JAMB 1985 Q3
Which of these animals is radically symmetrical?
A
Squid
B
Hydra
C
Snail
D
Cockroach.
Biology JAMB 1985 Q4
Which of the following has cones?
A
Angiosperm
B
Gymnosperm
C
Pteridophyte
D
Bryophyte .
Biology JAMB 1985 Q5
For effective functioning of a bird's quill feather, hooks fit on the ridges of the
A
vane
B
rachis
C
barbules
D
barbs.
Biology JAMB 1985 Q6
Which of the following is NOT true of Spirogyra?
A
Reproduces by conjugation
B
Reproduces by fragmentation
C
Consists of branched filaments
D
Consists of unbranched filaments
Biology JAMB 1985 Q7
Which of the following lacks chaetae, tentacles and antennae?
A
Snail
B
Crab
C
Millipede
D
Earthworm.
Biology JAMB 1985 Q8
Incomplete metamorphosis in the
A
butterfly
B
grasshopper
C
mosquito
D
housefly
Biology JAMB 1985 Q9
Fishes are cold-blooded because their body temperature is
A
constantly low
B
constantly high
C
dependent on that of their surroundings
D
regulated at will
Biology JAMB 1985 Q13
Which of the following is common to a dicotyledonous stem and a monocotyledonous root?
A
Medullary rays
B
Central pith
C
Wide cortex
D
Narrow cortex
E
Pericyclic fibres.
Biology JAMB 1985 Q14
Which of the following represents the sequence of protein hydrolysis? 1.Polypeptides 2.Amino acids 3. Proteins 4. Peptones
A
3a1a2a4
B
3a2a4a1
C
3a4a2a1
D
3a4a1a2
E
3a1a4a2
Biology JAMB 1985 Q16
If calcium is deficient in food this may cause
A
anaemia
B
retarded growth
C
sterility
D
goitre
E
beri-beri
Biology JAMB 1985 Q17
Partially digested food ready to leave the stomach is referred to as
A
chyme
B
curd
C
glycogen
D
paste
E
roughage
Biology JAMB 1985 Q18
The function of lymph nodes is to
A
supply oxygen
B
filter out bacteria
C
form red blood
D
supply amino acids
E
supply simple sugars
Biology JAMB 1985 Q19
The vein which returns blood from the head and arms to the heart is called
A
aorta
B
inferior vena cava
C
superior vena cava
D
pulmonary vein
E
pulmonary artery.
Biology JAMB 1985 Q20
Blood platelets are important because they
A
are amoeboid and nucleated
B
produce antitoxins
C
produce antibodies
D
digest harmful bacteria
E
release thrombin for blood clotting.
Biology JAMB 1985 Q21
If a child can receive blood from all donors, he belongs to the blood group
A
O
B
A
C
B
D
AB
E
AS.
Biology JAMB 1985 Q22
Which of the following events does NOT occur during anaerobic respiration of glucose?
A
Muscle cell produce lactic acid
B
Carbon dioxide is produced
C
Milk bacteria produce lactic acid
D
Energy is not produced
E
Germinating seeds produce alcohol. [PAGE 8]
Biology JAMB 1985 Q24
In mammals, the function of the sebaceous gland is to
A
produce sweat
B
secrete sodium
C
secrete water
D
produce an oily substance
E
manufacture vitamin D for the skin.
Biology JAMB 1985 Q25
Which of the following organs regulates the amount of amino acids and glucose in the body?
A
Kidney
B
Liver
C
Pancreas
D
Spleen
E
Stomach. Use the diagram below to answer questions 26 and 27 Fig. 1
Biology JAMB 1985 Q26
Bowman's capsules are located in the part labelled
A
1
B
2
C
3
D
4
E
5 F. 6
Biology JAMB 1985 Q27
Re-absorption of useful materials takes place in the parts labeled.
A
1 and 3
B
3 and 5
C
5 and 6
D
6 and 7
E
2 and 4
Biology JAMB 1985 Q28
Movements and positions of the head in man are detected by the
A
cochlea
B
malleus
C
utriculus
D
semicircular canals
E
outer
Biology JAMB 1985 Q29
The appendicular skeleton is made up of the
A
limbs
B
skull and limbs
C
phalanges
D
ulna and radius
E
girdles and limbs.
Biology JAMB 1985 Q30
The maize grain is a fruit and not a seed because it
A
has a large endosperm
B
is formed from an ovary
C
is a monocotyledon
D
has no plumule and radicle
E
has a hypogeal germination.
Biology JAMB 1985 Q31
If a flower is protandrous then it
A
must be unisexual
B
has an undeveloped anroecium
C
has no anroecium
D
must be insect pollinated
E
can prevent self- pollination.
Biology JAMB 1985 Q32
For pollen to be released in Crotalaria the insect must depress the
A
wing
B
keel
C
standard
D
antepetalous stamen
E
antesepalous stamen.
Biology JAMB 1985 Q33
Irish potato is a
A
bulb
B
tap root
C
rhizome
D
root tuber
E
stem tuber.
Biology JAMB 1985 Q34
The characters by which an organism is recognized are termed its
A
phenotype
B
genotype
C
morphology
D
anatomy
E
physiology.
Biology JAMB 1985 Q35
The hereditary material in a cell is known as
A
ADP
B
CNS
C
RNA
D
ATP
E
DNA.
Biology JAMB 1985 Q37
Germination which results in the cotyledons being brought above ground is called
A
hypocotyls
B
epicotyl
C
epigeal
D
hypogeal
E
plumule.
Biology JAMB 1985 Q38
The mammalian endocrine system is responsible for
A
transmitting impulses
B
regulating body temperature
C
regulating osmotic pressure of blood
D
chemical co-ordination
E
the manufacture of blood.
Biology JAMB 1985 Q39
An old man is likely to be long-sighted because age effects the
A
optic nerves
B
retina
C
ciliary muscles
D
cornea
E
aqueous humour.
Biology JAMB 1985 Q40
In a mammal, stimulus is transferred from the receptor muscle to the central nervous system through the
A
motor neurons
B
effector muscles
C
dendrites
D
sensory neurons
E
synapses.
Biology JAMB 1985 Q42
Which of the following food chains is in the correct sequence?
A
Weeds Tadpoles Beetles Fish Man
B
Weeds Tadpoles Fish Beetles Man. C.Tadpoles Beetles Weeds Man Fish
D
Man Fish Beetles Tadpoles Weeds
E
Fish Beetles Tadpoles Weeds Tadpoles.
Biology JAMB 1985 Q43
The primary and secondary hosts respectively of bilharzia are
A
fish and man
B
man and dog
C
snail and man
D
man and snail
E
fish and snail
Biology JAMB 1985 Q44
Which of the following is NOT caused by bacteria?
A
Cholera
B
Gonorrhoea
C
Tuberculosis
D
Onchocerciasis
E
Typhoid.
Biology JAMB 1985 Q45
Tsetse fly is harmful to man because it is associated with the spread of
A
river blindness
B
malaria
C
sleeping sickness
D
leprosy
E
dysentery. [PAGE 9]
Biology JAMB 1985 Q46
Soil erosion CANNOT be controlled by
A
planting cover crops
B
contouring of sloping ground
C
terracing of slopes
D
laying of mulch
E
burning of bush
Biology JAMB 1985 Q47
Water retention is highest in soils which are rich in
A
sand, poor in humus and devoid of clay
B
clay and sand, but poor in humus
C
clay and humus, but poor in sand
D
clay, poor in humus and devoid of sand
E
Sand and humus, but poor in clay
Biology JAMB 1985 Q48
The origin of mineral particles in the soil is
A
humus
B
water
C
micro-organisms
D
weathered rock
E
organic matter
Biology JAMB 1985 Q49
Atmospheric nitrogen is directly replenished in nature through
A
the activities of denitrifying bacteria
B
the breakdown of ammonium salts in the soil
C
the activities of nitrifying bacteria
D
the activities of nitrogen-fixing bacteria in root nodules
E
egestion, death and decay
Biology JAMB 1985 Q50
The initial volume of water poured into a bag of dry soil was 50ml and the amount that drained through was 35ml. The percentage water content of the fully soaked soil is therefore
A
46.7
B
25.0
C
20.0
D
30.0
E
58.3. Biology 1986