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Biology
UTME / JAMB 1981
Basic Ecological Concepts, Ecosystems & Biomes
Nitrification means
A
conversion of nitrates to nitrogen
B
fixing nitrogen into plants
C
conversion of nitrates to nitrites
D
changing of ammonia to nitrities, then nitrates
E
nitrogen cycle
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #1858)
Biology
UTME / JAMB 1981
Reproduction in Plants & Animals
Which of the following statements is NOT true of menstruation?
A
It occurs monthly
B
The discharge contains amniotic fluid
C
Its signifies no conception
D
It involves the lining of uterus
E
It may cause pains
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #1861)
Biology
UTME / JAMB 1981
Supporting Tissues & Skeletal System
The tissue which connects a muscle to a bone is a
A
cartiligae
B
muscle fibre
C
tendon
D
ligament
E
connecting fibre
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #1869)
Biology
UTME / JAMB 1981
Reproduction in Plants & Animals
A fruit formed from a single flower having several free carpels is
A
a multiple fruit
B
a dry dehiscent fruit
C
a dry indehiscent fruit
D
a simple fruit
E
an aggregate fruit
medium Difficulty
Verified Correct Answer: Option E
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option E.
Source: Myschool Past Questions Archive (Record #1871)
Biology
UTME / JAMB 1981
Reproduction in Plants & Animals
If the anthers of a flower mature before the stigma, the condition is termed
A
epigyny
B
hypogyny
C
protogyny
D
protandry
E
perigyny
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #1874)
Biology
UTME / JAMB 1981
Basic Ecological Concepts, Ecosystems & Biomes
An instrument used in measuring the speed of wind is
A
a barometer
B
a wind gauge
C
a wind vane
D
an anemometer
E
a hydrometer
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #1877)
Biology
UTME / JAMB 1981
Variety of Organisms & Classification of Living Things
In which of the following plants is swollen shoot disease common?
A
Groundnut
B
cocoa
C
Corn
D
Cotton
E
Rubber
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #1879)
Biology
UTME / JAMB 1981
Variety of Organisms & Classification of Living Things
Solution
One common feature of the fungi, algae, mosses and ferns is that they?
A
are photosynthetic
B
show alternation of generation
C
reproduce by means of conjugation
D
can survive dry conditions
E
have no seeds
medium Difficulty
Verified Correct Answer: Option E
Biological Concept & Syllabus Guide
Most fungi reproduce by forming spores that can survive extreme conditions such as cold and lack of water.
Many small algae reproduce asexually by ordinary cell division or by fragmentation, whereas larger algae reproduce by spores.
Although mosses and ferns don't resemble each other visually, they have botanical similarities. Both are plants with primitive origins that produce spores instead of seeds.
Source: Myschool Past Questions Archive (Record #1883)
Biology
UTME / JAMB 1981
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
The deficiency of vitamin D leads to
A
scurvy
B
pellagra
C
rickets
D
beriberi
E
polio
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #1884)
Biology
UTME / JAMB 1981
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
Which of these substance is likely to be deficient in the diet of a person having goitre?
A
potassuim
B
calcium
C
iodine
D
sodium
E
Phosphorus
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #1887)
Biology
UTME / JAMB 1981
Nervous, Hormonal Coordination & Sense Organs
Solution
Growing yam tendrils climb for support. This growth response is
A
haptotropism
B
geotropism
C
phototropism
D
hydrotropism
E
chemotropism
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
- Haptotropism / thigmotropism is the movement or change in orientation of a plant's growth as a reaction to touch. The orienting factor is generally a hard surface that can change the direction of the plant's growth or the growth of one of its organs.
- The movement of parts of a plant (especially tendrils) in response to a touch stimulus.
Source: Myschool Past Questions Archive (Record #1890)
Biology
UTME / JAMB 1981
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
Soil is said to be fertile if
A
It is black
B
it can supply usable nutrients to plants
C
the oxygen content is very high
D
artificial manure is added to it
E
it is not waterlogged
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #1892)
Biology
UTME / JAMB 1981
Reproduction in Plants & Animals
A plant which has a horizontal underground stem is
A
rhizome
B
corm
C
creeper
D
tuber
E
bulb
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #1893)
Biology
UTME / JAMB 1981
Transport System in Plants & Animals
Solution
The hepatic portal vein is unique because it
A
carries deoxygenated blood
B
begins and ends with capillaries
C
is the largest vein in mammals
D
carries digested food
E
is the shortest vein in mammals
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
The hepatic portal vein is unique because it:
Ensures the liver processes ingested substances first: The hepatic portal vein ensures that substances ingested are first processed by the liver before reaching the rest of the body. This allows the liver to detoxify toxins and absorb nutrients.
Carries blood to the liver: Unlike most veins, which carry blood to the heart, the hepatic portal vein carries blood to the liver.
Carries both oxygenated and deoxygenated blood: The hepatic portal vein carries partially deoxygenated blood from the gastrointestinal tract, pancreas, spleen, and gallbladder, along with oxygenated blood from the hepatic artery.
Supplies nutrients and toxins to the liver: The hepatic portal vein delivers nutrients and toxins to the liver, which are then processed by the liver. Being unique means what can it do that other parts cannot do or what makes it stand out. From the given explanation above options A and D are correct, so it's controversial.
Source: Myschool Past Questions Archive (Record #1894)
Biology
UTME / JAMB 1981
Excretion & Homeostasis
The functional unit of a mammalian kidney is the
A
urethra
B
malphigian capsule
C
glomerulus
D
nephron
E
ureter
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #1895)