2012

JAMB Biology 2012 past questions

48 questions from the 2012 JAMB UTME Biology paper. Free, with answers where available.

Biology JAMB 2012 Q1 OK Answer: C
Which Question Paper Type of Biology is given to you?
A
Type D
B
Type I
C
Type B
D
Type U
Biology JAMB 2012 Q2 OK Answer: B
The process in which complex substances are broken down into simpler ones is referred to as
A
anabolism
B
catabolism
C
metabolism
D
tropism
Biology JAMB 2012 Q3 OK Answer: C
The organ which is sensitive to light in Euglena is the
A
gullet
B
flagellum
C
chloroplast
D
eyespot
Biology JAMB 2012 Q4 OK Answer: D
The organelles present in cells that are actively respiring and photosynthesizing are
A
lysosomes and ribosomes
B
Golgi apparatus and endoplasmic reticulum
C
nucleus and centrioles
D
mitochondria and chloroplast
Biology JAMB 2012 Q5 OK Answer: B
Taenia solium can be found in
A
cow
B
goat
C
dog
D
pig
Biology JAMB 2012 Q6 OK Answer: B
Plants that show secondary growth are usually found among the
A
thallophytes
B
pteridophytes
C
monocotyledons
D
dicotyledons
Biology JAMB 2012 Q6 OK Answer: B
The structure labelled II is the
A
spermathecal pore
B
cocoon
C
clitellum
D
chaetae UTME 2013 BIOLOGY QUESTIONS
Biology JAMB 2012 Q7 OK Answer: B
The fungi are distinct group of eukaryotes mainly because they have
A
spores
B
no chlorophyll
C
many fruiting bodies
D
sexual and sexual reproduction
Biology JAMB 2012 Q8 OK Answer: A
An arthropod that is destructive at early stage of its life cycle is
A
butterfly
B
mosquito
C
bee
D
millipede
Biology JAMB 2012 Q9 OK Answer: A
An animal body that can be cut along its axis in any plane to give two identical parts is said to be
A
radially symmetrical
B
bilaterally symmetrical
C
asymmetrical
D
symmetrical
Biology JAMB 2012 Q10
Which of the following possesses mammary gland?
A
Dogfish
B
whale
C
shark
D
catfish
Biology JAMB 2012 Q11
The feature that links birds to reptiles in evolution is the possession of
A
feathers
B
break
C
skeleton
D
scales [PAGE 15]
Biology JAMB 2012 Q12
Countershading is an adaptive feature that enables animals to
A
fight enemies
B
remain undetected
C
warn enemies
D
attract mates
Biology JAMB 2012 Q13
Which of the following plant structures lacks a waterproof cuticle?
A
leaf
B
stem
C
root
D
shoot
Biology JAMB 2012 Q14
In the mammalian male reproductive system, the part that serves as a passage for both urine and semen is the
A
urethra
B
ureter
C
bladder
D
seminal vesicle
Biology JAMB 2012 Q15
In plants which of the following is required in minute quantities for growth?
A
Copper
B
Potassium
C
Phosphorus
D
Sodium
Biology JAMB 2012 Q16
Which of the following organisms is both parasitic and autotrophic?
A
Sundew
B
Loran thus
C
Rhizopus
D
Tapeworm 17.A function of the hydrochloric acid produced in the human stomach during digestion is to
Biology JAMB 2012 Q18
Which of the following is a polysaccharide?
A
Glucose
B
Sucrose
C
Maltose
D
Cellulose Use the diagram below to answer this question 19 and 20.
Biology JAMB 2012 Q19
Arrows represent directional movement materials. Transportation in the xylem is represented by
A
I
B
II
C
III
D
IV
Biology JAMB 2012 Q20
The arrow labelled ll represents the
A
release of oxygen
B
intake of carbon (IV) oxide
C
movement of photosynthates
D
movement of nutrients
Biology JAMB 2012 Q21
In the kidney of mammals, the site of ultrafiltration is the
A
uriniferous tubule
B
Bowman's capsule
C
loop of Henle
D
renal tubule
Biology JAMB 2012 Q22
Which of the following is involved in secondary thickening in plants?
A
Collenchyma and xylem cells
B
Vascular cambium
C
Vascular cambium and cork cambium
D
Cork cambium and sclerenchyma [PAGE 16]
Biology JAMB 2012 Q23
An example of a fruit that develops from a single carpel is
A
okro
B
tomato
C
bean
D
orange
Biology JAMB 2012 Q24
The developing embryo is usually contained in the part labelled
A
IV
B
III
C
II
D
I
Biology JAMB 2012 Q25
The function of the part labelled lll is to
A
produce egg cells
B
protect sperms during fertilization
C
secrete hormones during coitus
D
protect the developing embryo
Biology JAMB 2012 Q26
Plant growth can be artificially stimulated by the addition of
A
gibberellin
B
kinin
C
abscisic acid
D
ethylene
Biology JAMB 2012 Q27
The autonomic nervous system consists of neurons that control the
A
voluntary muscles
B
heart beat
C
tongue
D
hands
Biology JAMB 2012 Q28
Plants of temperate origin can be grown in tropical areas in the vegetation zones of the
A
rain forest
B
Guinea savanna
C
Sudan savanna
D
montane forest
Biology JAMB 2012 Q29
The water cycle is maintained mainly by
A
evaporation of water in the environment
B
evaporation and condensation of water in the environment
C
condensation of water in the environment
D
transpiration and respiration in plants
Biology JAMB 2012 Q30
Organisms living in an estuarine habitat are adapted to
A
withstand wide fluctuations in temperature
B
survive only in water with low salinity
C
withstand wide fluctuations in salinity
D
feed only on phytoplankton and dead organic matter
Biology JAMB 2012 Q31
The presence of stilt roots, pneumatophores, sunken stomata and salt glands are adaptive features of plants found in the
A
tropical rainforest
B
mangrove swamps
C
grassland
D
montane forest
Biology JAMB 2012 Q32
Which of the following animals can exist solely on the water they get from food and metabolic reactions?
A
forest arboreal dweller
B
Desert dwellers
C
forest-ground dweller
D
rainforest dwellers
Biology JAMB 2012 Q33
The most likely first colonizers of a bare rock are
A
mosses
B
ferns
C
lichen
D
fungi
Biology JAMB 2012 Q34
The carrying capacity of a habitat is reached when the population growth begins to
A
increase slowly
B
increase exponentially
C
slow down
D
remain steady
Biology JAMB 2012 Q35
The abiotic factors that control human population include
A
disease and famine
B
space and rainfall
C
flooding and earthquake
D
temperature and disease
Biology JAMB 2012 Q36
An indigenous method of renewing and maintaining soil fertility is by
A
clearing farms by burning
B
planting one crop type [PAGE 17]
C
adding inorganic fertilizers yearly
D
crop rotation and shifting cultivation
Biology JAMB 2012 Q37
The diseases caused by water-borne pathogens include
A
gonorrhoea and poliomyelitis
B
typhoid and syphilis
C
tuberculosis and cholera
D
typhoid and cholera Use the diagram below to answer question 38 and 39.
Biology JAMB 2012 Q38
The graph illustrates
A
the highest frequency for height of 2 metres
B
a discontinuously varying character
C
a continuously varying character
D
total yield in a cassava farm
Biology JAMB 2012 Q39
The largest number of cassava plants has an approximate height of
A
1.4m
B
1.6m
C
1.8m
D
2.0m
Biology JAMB 2012 Q42
When a colour-blind man marries a carrier woman. What is the probability of their offspring being colour blind?
A
25%
B
50%
C
75%
D
100%
Biology JAMB 2012 Q43
The correct base pairing for DNA is
A
adenine -> thymine and guanine -> cytosine
B
adenine -> guanine and thymine -> cytosine
C
adenine -> cytosine and guanine -> thymine
D
adenine -> adenine and cytosine -> cytosine Use the diagram above to answer this question 44 and 45
Biology JAMB 2012 Q44
The type of interaction shown is referred to as
A
interspecific competition
B
intraspecific competition
C
mutualism
D
cooperation
Biology JAMB 2012 Q45
Which of the following statement is true of the interaction?
A
P aurelia is better adapted for obtaining food than P caudatum
B
P caudatum is better adapted for obtaining food than P. aurelia
C
both organisms cannot coexist
D
both organisms cannot reproduce [PAGE 18]
Biology JAMB 2012 Q46
The short thick break in birds is an adaptation for
A
crushing seeds
B
sucking nectar
C
tearing flash
D
straining mud
Biology JAMB 2012 Q47
The basking of Agama lizards in the sun is to
A
change the colour of their body
B
raise their body temperature to become active
C
fight to defend their territories
D
attract the female for courtship
Biology JAMB 2012 Q48
The significance of a very large number of termites involved in nuptial swarming is to
A
provide birds with plenty of food
B
ensure their perpetuation despite predatory pressure
C
search for a favourable place to breed
D
ensure that every individual gets a mate
Biology JAMB 2012 Q49
The use and disuse of body parts and the inheritance of acquired traits were used to explain
A
Darwin's theory
B
Lamarek's theory
C
genetic drift
D
gene flow
Biology JAMB 2012 Q50
From his study of Galapagos finches, Darwin derived his theory of evolution from
A
comparative anatomy
B
comparative physiology
C
fossil remains
D
comparative embryology [PAGE 19] ANSWER KEYS