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Moshood Abiola Polytechnic Postume Past Questions
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Biology
1. A group of closely related organisms
capable of interbreeding to produce
fertile offspring are known
as members of a
(a) kingdom.
(b) class.
(c) family.
(d) species.
If choice d is selected set score to 1.
2. Viruses are economically important because
they
(a) do not have cell structures,
(b) can only reproduce inside living cells.
(c) cause diseases in plants and animals.
(d) exist as crystals outside living cells.
If choice c is selected set score to 1.
3. A beaker of pond water containing few
specimens of Euglena was placed in
a dark room for two
weeks. At the end of this I period, the
specimens of Euglena were still
alive because they were
(a) able to carry out holozoic nutrition.
(b) able to carry out photosynthesis using
carbon dioxide in the pond
water.
(c) better adapted to life in darkness than to
life in light.
(d) not overcrowded
If choice a is selected set score to 1.
4. The cytoplasm of the cell is considered a
very important component
because it
(a) regulates the amount of energy in the
cell.
(b) suspends all cell organelles.
(c) is the outermost part of the cell.
(d) is solely responsible for cell division.
If choice b is selected set score to 1.
5. In plant cells the role of the membrane is
played by the
(a) nucleolus
(b) cell wall.
(c) cytoplasm.
(d) mitochondrion.
If choice b is selected set score to 1
6. The cytoplasm o the cell is considered a very
important component
because it
( (a) regulates the amount of
energy in the cell.
( (b) suspends all cell organelles.
( (c) is the outermos part of the cell.
( (d) is solely responsible for cell
diision.
If choice b is selected set score to
1.
e it
( (a) regulates the amount of
energy in the cell.
( (b) suspends all
cell organelles.
( (c) is the outermos part of the cell.
( (d) is solely responsible for cell
diision.
If choice b is selected set score to
1.
rgy in the cell.
( (b) suspends all cell organelles.
( (c) is the outermos part of the cell.
( (d) is solely responsible for cell
diision.
If choice b is selected set score to
1.
7. y in the cell.
( (b) suspends all cell organelles.
( (c) is the outermos part of the cell.
( (d) is solely responsible for cell
diision.
If choice b is selected set score to
1.
8. In plant cells the role of the membraneis
played by the
( (a) nucleolus
( (b) cell wall.
( (c) cytoplasm.
9. ( (d) mitochondrion.
If choice b is selected set score to
1.
d) mitochondrion.
If choice b is selected set score to
1.
d set score to 1.
Page 2
10. set score to 1.
11. Red blood cells were found to have burst
open after being laced in
distilled watecontaining
nitrogen.
(b) produced carbon dioxide
(c) ran short of energy.
(d) used up the available oxygen.
If choice d is selected set score to 1.
12. Which of the following organisms have
kidney as their excretory organ?
(a) Fishes, amphibians, birds, man
(b) Fishes, amphibians, annelids, insects
(c) Fishes, reptiles, birds, tapeworms
(d) Fishes, protozoans. amphibians
If choice a is selected set score to 1.
13. The reason why hospitals use saline
solutions as drip instead of water
is
(a) because salt is a preservative
(b) to prevent contamination of the body
(c) to main the composition of body cells
(d) to increase the number of blood cells
If choice c is selected set score to 1.
14. The part of the ear which contains
nerve cells sensitive to sound
vibration is the
(a) cochlea
(b) ampulla
(c) tympanum
(d) malleus
If choice a is selected set score to 1.
15. Spectacles with convex lenses correct long-
sightedness by
(a) converging the light rays before they
enter the eye
(b) diverging the light rays before they enter
the eye
(c) reducing light intensity before it enters
the eye
(d) increasing light intensity before it enters
the eye
If choice a is selected set score to 1.
16. A seed of a flowering plant can best be
described as
(a) radicule and plumule
(b) the developed ovule
(c) the embryo and endosperm.
(d) developed ovary.
If choice c is selected set score to 1.
17. Which of the following processes removes
carbon from the atmosphere?
(a) Putrefaction
(b) Photosynthesis
(c) Volcanic eruption
(d) Burning of fuels
If choice b is selected set score to 1.
18. Which of the following cycles involves the
process of precipitation and
transpiration?
(a) Water cycle
(b) Carbon cycle
(c) Nitrogen cycle
(d) oxygen cycle
If choice a is selected set score to 1.
19. The mesophyll layer of a leaf consists of
(a) wax and cutin.
(b) cells with high walls.
(c) irregularly shaped collenchymas cells.
(d) photosynthetic parenchyma cells.
If choice d is selected set score to 1.
20. Which of the following treatments would
increase the Rate of
transpiration in a potted plant?
(a) placing it in a cold room
(b) placing it under a fan in a room
(c) putting it in a cupboard
(d) smearing Grease on the lower surface of
the leaves
If choice b is selected set score to 1.
21. Pepsin is secreted as an inactive precursor
called pepsinogen because
(a) pepsin as an enzyme is quickly
destroyed by the alkaline food from
mouth.
(b) all digestive enzymes pass through a
precursor stage
(c) pepsin
is a proteolytic enzyme and might attack the
stomach tissues.
(d) pepsin is not required in large
quantities.
If choice c is selected set score to 1.
22. An organism whose source of carbon is
inorganic is likely to be a/an
(a) heterotropic organism.
(b) autotrophic organism
(c) symbiotic organism
(d) parasitic organism
If choice b is selected set score to 1.
23. Which of the following organism is an
endoparasite
(a) Mice
(b) Mosquito
(c) Ascaris
(d) Dodder
If choice c is selected set score to 1.
24. Which of the following statement about
ecosystems is false?
(a) All the energy entering the ecosystem is
passed on to decomposers.
(b) The primary producers provide energy for
herbivores and carnivores.
(c) Ecosysyems must start with the capture
of energy by
(d) Energy transfer from one trophic level to
the other is not 100%
efficient.
If choice a is selected set score to 1.
25. What is the critical limiting factor for
plants below the photic Zone
in an aquatic ecosystem?
(a) Availability of nutrients
(b) Availability
(c) Intensity of light
(d) Carbon dioxide concentration
If choice c is selected set score to 1.
26. Which of the following instruments is used
to estimate the number of
plants in a habitat?
(a) Pooter
(b) Pitfall trap
(c) Quadrant
(d) Sweep net
If choice c is selected set score to 1.
27. Which of the following statements is true
about sandy soil? It
(a) has limited air space
(b) is light and easy to dig
(c) drains slowly
(d) is heavy and poorly aerated
If choice b is selected set score to 1.
28. Which of the following organisms is a
primary consumer?
(a) Dog
(b) Sheep
(c) Grass
(d) Fungus
If choice b is selected set score to 1.
29. Food chains are relatively short because
(a) of energy recycling in the ecosystem.
(b) energy gain at each trophic level is high.
(c) of energy toss at each trophic level.
(d) energy flow in an ecosystem is
unidirectional.
If choice d is selected set score to 1.
30. Which of the following organisms does not
show colour adaptation to its
environment?
(a) Chameleon
(b) Earthworm
(c) Flash
(d) Toad
If choice b is selected set score to 1.
31. Most tropical plants shed their leaves
during dry weather conditions in
order to
(a) reduce their growth rate
(b) conserve water
(c) reduce competition
(d) minimize the rate of photosynthesis
If choice b is selected set score to 1.
32. Which of the following features is not an
adaptation of plants to
aquatic habitat?
(a) Breathing roots for entry of air
(b) Flowers raised above for the purpose of
pollination
(c) Spongy tissues containing gases for
buoyancy
(d) Hair structures on the leaves to reduce
water loss
If choice d is selected set score to 1.
33. The following habitats can be used in the
study of succession except
(a) savanna grassland
(b) abandoned farmland
(c) a pond
(d) a well cultivated land
If choice d is selected set score to 1.
34. Population growth rate may be defined as
the
(a) mortality rate per unit area over a period
(b) number of a particular species per unit
area
(c) number of a particular species per unit
area
(d) net rate of natality and mortality in the
habitat over a period
If choice d is selected set score to 1.
35. In ecological succession, since lichens grow
on bare rock, they are
considered to be
(a) primary consumers.
(b) pioneer organisms.
(c) climax organisms.
(d) producers.
If choice b is selected set score to 1.
36. Which of the following factors will most
likely lead overcrowding
within a population?
(a) Absence of predators
(b) Emigration
(c) Food shortage
(d) Absence of territorial behaviour
If choice a is selected set score to 1.
37. A species whose population has become so
small that it may become
extinct if not protected is a/an
(a) special species.
(b) dangerous species
(c) endangered species.
(d) important species.
If choice c is selected set score to 1.
38. Which of the following practices does not
contribute to the
preservation and improvement of the
environment?
(a) Pollution reduction
(b) Material recycling
(c) Refforestation
(d) Overgrazing
If choice d is selected set score to 1.
39. Variation is important in human life and
can be used for the following
activities except
(a) crime detection
(b) population distribution
(c) blood transfusion
(d) determination of paternity.
If choice b is selected set score to 1.
40. An example of continuous variation is
(a) fingerprint
(b) tongue rolling
(c) blood grouping
(d) blood size
If choice d is selected set score to 1.
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