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Biology
UTME / JAMB 1978
Variety of Organisms & Classification of Living Things
Solution
A trawler on a fishing trip caught a type of animal with hairs on its body. This animal could have been
A
An amphibian
B
a reptile
C
a shark
D
a mammal
E
a seagull
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
We have aquatic mammals. These are mammals which depend on water either fully or partly. They have the qualities of mammals
Source: Myschool Past Questions Archive (Record #301)
Biology
UTME / JAMB 1978
Supporting Tissues & Skeletal System
Solution
which of these type of skeleton is most appropriate for a cockroach?
A
Hydrostatic skeleton
B
Exoskeleton
C
Endoskeleton
D
Cartilaginous skeleton
E
Bony skeleton
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
Like most other insects, cockroaches have an exoskeleton, meaning their skeleton is located on the outside of their bodies.
Source: Myschool Past Questions Archive (Record #304)
Biology
UTME / JAMB 1978
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
Solution
when protein are broken down they provide
A
oxygen
B
carbonhydrate
C
energy
D
amino-acid
E
carbon dioxide
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
The end-product of the breakdown of protein is amino-acids and other simple products.
Source: Myschool Past Questions Archive (Record #306)
Biology
UTME / JAMB 1978
Respiration & Gaseous Exchange
Solution
the function of lenticels is
A
to remove excess water in plant
B
to absorb water from the atmosphere
C
for gaseous exchange
D
to absorb light
E
to store food
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
A lenticel is one of many raised pores in the stem of a woody plant that allows gas exchange between the atmosphere and the internal tissues.
Source: Myschool Past Questions Archive (Record #308)
Biology
UTME / JAMB 1978
Reproduction in Plants & Animals
Solution
The following events take place during conjugation in spirogyra 1. The protoplasm of each of the conjugating cell separate from the cell wall to form a Gamete; the gamete of one filament passes through the conjugation tube to meet the gamete of the other filament 2. The zygote soon become surrounded by thick brown wall to become zygospore which burst after a short rest and germinate to produce a new filament 3. The nuclei of the gametes fuse to form a zygote 4. The protuberance meet and where they touch the cell-wall disappear so that a conjugation tube joining the two cell is formed 5. protuberance appear on the wall of the cell of two filament of spirogyra lying side by side opposite one another. Now what is the correct sequence in which the above sequence occur?
A
1,2,3,4,5
B
1,2,4,5,3
C
3,4,5,2,1
D
5,4,1,3,2
E
5,4,3,1,2
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Sexual reproduction in Spirogyra occurs by a process known as conjugation, in which cells of two filaments lying side by side are joined by outgrowths called conjugation tubes. This allows the contents of one cell to completely pass into and fuse with the contents of the other. The resulting fused cell (zygote) becomes surrounded by a thick wall and overwinters, while the vegetative filaments die.
Source: Myschool Past Questions Archive (Record #315)
Biology
UTME / JAMB 1978
Cell Structure, Organization & Cell Division
Solution
Which of the following is a characteristic of animal cell?
A
Presence of chloroplast
B
possession of cellulose cell-wall
C
absence of large vacuoles
D
presence of large vacuoles
E
presence of chromosome
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
Unlike the plant cell which possesses one or a few large vacuoles, the animal cell possesses vacuoles but they are smaller in size and plenty in quantity when compared to that of the plants.
Source: Myschool Past Questions Archive (Record #318)
Biology
UTME / JAMB 1978
Basic Ecological Concepts, Ecosystems & Biomes
Solution
Nitrifying bacteria keep the soil fertile by
A
converting nitrate to nitrogen
B
converting ammonium salt to nitrate
C
converting atmospheric nitrogen to plant nitrogen
D
converting nitrate to nitrous oxide
E
converting atmospheric nitrogen to nitrates
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
Nitrifying bacteria are microorganisms that help to convert soil ammonium to nitrates, the form in which it is usable by plants. or Nitrifying bacteria is an aerobic bacteria that use inorganic chemicals as an energy source. They are important in the nitrogen cycle as converters of soil ammonia to nitrates by the process of oxidation.
Source: Myschool Past Questions Archive (Record #322)
Biology
UTME / JAMB 1978
Growth, Micro-organisms & Public Health
Solution
In the life history of schistosoma (Bilharzia), one of the following is intermediate host
A
man
B
snail
C
mosquito larva
D
crayfish
E
fish
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
Bhilharzia is another name for snail fever, which attacks primarily the snail's urinary tract.
Source: Myschool Past Questions Archive (Record #323)
Biology
UTME / JAMB 1978
Variety of Organisms & Classification of Living Things
Solution
In which of the following groups of organisms do all the members have asexual method of reproduction?
A
A geen filament algae, a flowering plant and a bird
B
A toad (or frog) , ameoba and mucor ( penicillium)
C
A flowering plant, tape worm (or ascaris) and a green filamentous algae
D
Mucor (or penicillium), a bird and a toad (or frog)
E
Ameoba, mucor (or penicillium ) and a green filamentous algae
medium Difficulty
Verified Correct Answer: Option E
Biological Concept & Syllabus Guide
Amoeba reproduces by binary fission which is a form of asexual reproduction. Also, the mucor as well as the green algae reproduce asexually .
Source: Myschool Past Questions Archive (Record #324)
Biology
UTME / JAMB 1978
Nervous, Hormonal Coordination & Sense Organs
Solution
The hormone which tones up the muscles of a person in time of danger is from the
A
thyroid gland
B
pancreas
C
adrenal gland
D
liver
E
spleen
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
The adrenalin is a hormone which is released in times of danger. It is produced in the adrenal gland.
Source: Myschool Past Questions Archive (Record #326)
Biology
UTME / JAMB 1978
Basic Ecological Concepts, Ecosystems & Biomes
Solution
The study of organism and the environment of an abandoned farmland is the ecology of?
A
a community
B
a population
C
a specie
D
a habitat
E
an ecosystem
medium Difficulty
Verified Correct Answer: Option E
Biological Concept & Syllabus Guide
The ecology of ecosystem has to do with the study of every factor living (biotic) and non- living (abiotic), which affects the population.
Source: Myschool Past Questions Archive (Record #328)
Biology
UTME / JAMB 1978
Transport System in Plants & Animals
Solution
A potometer with a leafy shoot weighed 18.9g initially and weighed 17.9g after one hour. From this it follow that
A
the shoot absorbed 1g of water per hour
B
1g of water per hour evaporates from the potometer
C
the shoot lost 1g of water per hour
D
the potometer water receded at the rate of 1g per hour
E
the shoot was respiring and lost weight at rate of 1g per hour
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
The amount of water lost is (18.9 - 17.9)g = 1g. Hence, the water lost by the shoot is 1g.
Source: Myschool Past Questions Archive (Record #331)
Biology
UTME / JAMB 1978
Cell Structure, Organization & Cell Division
Solution
At fertilization
A
one chromosome from the male joins another from the female
B
one gene from the male combines with another from the female
C
the male nucleus fuses with the female nucleus
D
one set of chromosome combines with another set from the female
E
one cell from the male fuses with another from the female
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
Fertilization is the union of a spermatozoal nucleus, of paternal origin, with an egg nucleus, of maternal origin, to form the primary nucleus of an embryo.
Source: Myschool Past Questions Archive (Record #332)
Biology
UTME / JAMB 1978
Variety of Organisms & Classification of Living Things
Solution
The neck region of the tape worm, (taenia) is responsible for the
A
production of egg
B
storage of egg
C
formation of new segment
D
development of the suckers
E
fragmentaion of the body segment
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
The adult tapeworm possesses a series of flat, rectangular body segments, or proglottids, generated by the neck.
Source: Myschool Past Questions Archive (Record #333)
Biology
UTME / JAMB 1978
Supporting Tissues & Skeletal System
Solution
Which of these is not true of the insect? The possession of
A
two pairs of antennae
B
jointed appendages
C
exoskeleton
D
three pairs of legs
E
segmented body
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
Insects possess one pair of antenna and not two pairs.
Source: Myschool Past Questions Archive (Record #334)