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Biology
UTME / JAMB 1978
Excretion & Homeostasis
Solution
Which of these products obtained from analyzing sweat from skin is not an excretory product?
A
water
B
Salts
C
Dust
D
Urea
E
Urates
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
Dust is not an excretory product from the human.
Source: Myschool Past Questions Archive (Record #350)
Biology
UTME / JAMB 1978
Variation & Genetics (Heredity)
Solution
In a breeding program a cross was made between two true breeding cow-pea types: one with round seeds and the other with wrinkled seed. If roundness is dominant why wrinkleness is recessive, in the first filial generation all the seeds produced will be
A
25% wrinkled, 75% round
B
100% wrinkled
C
50% wrinkled, 50% round
D
75% wrinkled, 25% round
E
100% round
medium Difficulty
Verified Correct Answer: Option E
Biological Concept & Syllabus Guide
Owing to the dominance of roundness, the crossing of the two seeds regularly would see all the offsprings having mixed genes but will be round.
Let RR = round seeds while RR = wrinkled seed
In the first filial generation, if we cross RR x rr
We'll have Rr, Rr, Rr, Rr
Remember that RR is dominant while rr is recessive
Therefore, All the four offsprings will be Dominant Round i.e 100% Round
Source: Myschool Past Questions Archive (Record #351)
Biology
UTME / JAMB 1978
Cell Structure, Organization & Cell Division
Diagram
Solution
During reproduction of the organism in figure above(ameoba) the first structure to divide is?
Attached Figure / Diagram
A
1
B
2
C
3
D
4
E
5
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
The part labeled 3 is the Nucleus which is the first to divide by BINARY FISSION.
Source: Myschool Past Questions Archive (Record #15470)
Biology
UTME / JAMB 1978
Respiration & Gaseous Exchange
Diagram
The part numbered 12 is
Attached Figure / Diagram
A
pectoral fin
B
scale
C
opercular plate
D
gill plate
E
pectoral girdle
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 #15471)
Biology
UTME / JAMB 1978
Variety of Organisms & Classification of Living Things
Diagram
During the movement of the fish from point A to target B, one of these parts is not involved
Attached Figure / Diagram
A
7
B
5
C
3
D
6
E
10
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 #15474)
Biology
UTME / JAMB 1978
Respiration & Gaseous Exchange
Diagram
Solution
The number shown as 8 refers to
Attached Figure / Diagram
A
upper epidermise
B
cuticle
C
stoma
D
guard cell
E
lower epidermis
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
The part labelled 8 is the guard cell. It's function is to regulate the opening and closing of stomata, which are small pores on the leaf surface. This regulation is crucial for controlling gas exchange (primarily CO\(_2\) uptake for photosynthesis and O\(_2\) release) and water loss (transpiration).
(See diagram above for better understanding)
Source: Myschool Past Questions Archive (Record #15475)
Biology
UTME / JAMB 1978
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
Diagram
The structure responsible for trapping the sun's energy during photosynthesis is
Attached Figure / Diagram
A
5
B
6
C
3
D
2
E
8
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 #15477)
Biology
UTME / JAMB 1978
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
Diagram
Which of these plays no role in photosynthesis?
Attached Figure / Diagram
A
9
B
8
C
5
D
2
E
3
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 #15480)
Biology
UTME / JAMB 1978
Nervous, Hormonal Coordination & Sense Organs
Diagram
Solution
THE figure above shows diagram for the correction of shortsightedness. If the unbroken lines represents light rays from the object and the broken lines the refracted rays through the lens, which of these is correct
Attached Figure / Diagram
A
A
B
B
C
C
D
D
E
E
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
The concave lens used in correcting short sightedness simply DIVERGES the light to the correct extent so that it is now focused on the retina.
Source: Myschool Past Questions Archive (Record #15482)
Biology
UTME / JAMB 1978
Variety of Organisms & Classification of Living Things
Diagram
The figure above represents an experiment with two types of soil. The experiment demonstrates
Attached Figure / Diagram
A
soil attraction of water
B
soil porosity
C
soil capilarity
D
draining capacity of soils
E
soil permeability
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 #15484)
Biology
UTME / JAMB 1978
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
Solution
A germinating seed requires oxygen which is essential for
A
Converting carbohydrate into glucose
B
Transporting energy from one part of the plant to another
C
The production of energy by oxidising essential carbohydrate
D
Hydrolysis of proteins
E
The formation of water molecules within the germinating seed
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
A germinating seed requires oxygen, which is essential for cellular respiration to produce energy. This energy is vital for the seed to grow and develop, powering the metabolic activities needed for sprouting. Oxygen allows the seed to break down stored carbohydrates through oxidation, releasing energy in the form of ATP.
Source: Official Exam / Past Question Archive
Biology
UTME / JAMB 1978
Excretion & Homeostasis
Which one of the following statements about the mammalian kidney is false?
A
The glomerulus is formed by a branch of the renal artery
B
The glomerulus is a part of uriniferous tubules
C
Tha bowmans capsule is in the cortex of the kidney
D
The uriniferous tubules are richly supplied with blood vessels
E
The glomerulusis lodged in the bowmans capsule
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 #40478)
Biology
UTME / JAMB 1978
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
Which of these is a direct photosynthetic product?
A
Glucose
B
Starch
C
Protein
D
Fats
E
Latex
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 #40479)