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Biology
UTME / JAMB 1981
Excretion & Homeostasis
Which of the following is NOT a function of the liver?
A
Regulation of blood sugar
B
Storage of iron
C
Formation of bile
D
Breakdown of excess amino acids
E
Excretion of urea from the blood
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 #1258)
Biology
UTME / JAMB 1981
Reproduction in Plants & Animals
Spirogyra reproduces vegetatively by
A
spore production
B
fragmentation
C
multiple fission
D
budding
E
binary fission
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 #1259)
Biology
UTME / JAMB 1981
Transport System in Plants & Animals
Solution
Which of the following instruments is used to demonstrate the response of roots and shoots to gravity?
A
Clinostat
B
Manometer
C
Porometer
D
Potometer
E
Photometer
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
Clinostat : A device used in experiments to test the influence of gravity on the growth movements of plants (see geotropism).
Source: Myschool Past Questions Archive (Record #1260)
Biology
UTME / JAMB 1981
Digestive System & Feeding Mechanisms
Solution
Milk protein is hydrolyzed by
A
renin
B
amylase
C
lipase
D
lactase
E
pepsin
medium Difficulty
Verified Correct Answer: Option E
Biological Concept & Syllabus Guide
Pepsins are enzymes that help in breaking down proteins, including milk proteins.
Renin: helps in regulating blood pressure.
Amylase: breaks down carbohydrates not proteins.
Lipase: breaks down fats, not proteins.
Lactase: breaks down lactose (milk sugar), not proteins.
Source: Myschool Past Questions Archive (Record #1261)
Biology
UTME / JAMB 1981
Transport System in Plants & Animals
The rate of transpiration of a leafy shoot would be highest under
A
damp, cold, still air
B
damp, warm, moving air
C
dry, warm, moving air
D
dry, cold, moving air
E
dry, warm, still air
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 #1262)
Biology
UTME / JAMB 1981
Respiration & Gaseous Exchange
Solution
What is name of the respiratory organ of the crab?
A
Tubules
B
Trachaea
C
Spiracles
D
Lungs
E
Gills
medium Difficulty
Verified Correct Answer: Option E
Biological Concept & Syllabus Guide
Crabs use gills to absorb oxygen from water and release carbon dioxide. Crabs use gills to breathe, similar to fish.
Source: Myschool Past Questions Archive (Record #1263)
Biology
UTME / JAMB 1981
Variety of Organisms & Classification of Living Things
The two types of human tapeworm can be distinguished by the presence or absence of
A
scolex
B
hook
C
head
D
sucker
E
proglottis
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 #1264)
Biology
UTME / JAMB 1981
Digestive System & Feeding Mechanisms
All the following are digestive enzymes except
A
bile
B
lipase
C
maltase
D
pepsin
E
ptyalin
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 #1266)
Biology
UTME / JAMB 1981
Variety of Organisms & Classification of Living Things
In a bakery, yeast is added to flour to make bread rise. This is possible because yeast produces
A
alcohol
B
oxygen
C
carbon dioxide
D
energy
E
ethanol
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 #1267)
Biology
UTME / JAMB 1981
Nervous, Hormonal Coordination & Sense Organs
Accommodation of the human eye is best described as the
A
ability to see distant objects
B
movement of upper and lower eyelids
C
focusing of near and distant objects
D
changing of lens shape due to varying light intensities
E
constant adjustment of the iris
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 #1269)
Biology
UTME / JAMB 1981
Variation & Genetics (Heredity)
Solution
Normally any character shown by an organism is due to the effects of
A
hormones and chromosomes
B
chromosomes
C
mutation
D
hormones and genes
E
genes and environment
medium Difficulty
Verified Correct Answer: Option E
Biological Concept & Syllabus Guide
An organism's genetic makeup (DNA) provides the foundation for its development and behaviour. Environmental factors, including experiences, nutrition, and social interactions, influence how genes are expressed and can lead to variations in behaviour.
Genes and environment interact in complex ways, where the environment can modify how genes are expressed, and genes can influence an individual's susceptibility to environmental influences.
Source: Myschool Past Questions Archive (Record #1271)
Biology
UTME / JAMB 1981
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
Which of the following statement is NOT true of symbiosis?
A
Symbionts must be living
B
It is an association of 'give and take'
C
The association may involve two plants
D
Association between two similar species
E
Symbionts derive mutual benefit
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 #1841)
Biology
UTME / JAMB 1981
Variation & Genetics (Heredity)
A person whose blood can be donated to all other people, must have the blood group
A
O
B
AB
C
B
D
A
E
none of the above
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 #1846)
Biology
UTME / JAMB 1981
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
If Benedict's solution gives a positive result in a food test, the food contains
A
sugar
B
protein
C
oil
D
fat
E
cellulose
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 #1851)
Biology
UTME / JAMB 1981
Variation & Genetics (Heredity)
A surprising fact about sickle cell disease is that it
A
affects only black people
B
kills the patient
C
is hereditary
D
affects blood cells
E
weakens the patient
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 #1855)