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Biology
UTME / JAMB 1979
Nervous, Hormonal Coordination & Sense Organs
A gland in the human body secretes two hormones, one of which causes a disease called diabetes when there is a deficiency. Which of these organ produce the hormone?
A
spleen
B
Parathyroid
C
Adrenal body
D
Thyroid
E
Pancreas
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 #403)
Biology
UTME / JAMB 1979
Supporting Tissues & Skeletal System
In which of the following tissue do the cells have the ability to divide?
A
Meristem
B
Sclerenchyma
C
Phloem
D
Collenchyma
E
Pith
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 #404)
Biology
UTME / JAMB 1979
Excretion & Homeostasis
Solution
Which one of the following is not an excretory product?
A
Urine
B
Sweat
C
Faeces
D
Salts
E
Carbon-dioxide
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
The major excretory products are carbon dioxide, excess water, and nitrogenous compounds like ammonia, urea, uric acid.
It is simply a matter of definition. Because feces are basically the remnants, remains, leftovers of food ingested but not digested (hence the remains,) its removal is named egestion.
Source: Myschool Past Questions Archive (Record #405)
Biology
UTME / JAMB 1979
Growth, Micro-organisms & Public Health
Bacteria inhabiting legume root nodules and which add atmospheric nitrogen to the soil are referred to as
A
Denitrifying bacteria
B
Nitrifying bacteria
C
Nitrogen fixing bacteria
D
Nitrogen freeing bacteria
E
Nitrogen putrefying bacteria
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 #406)
Biology
UTME / JAMB 1979
Growth, Micro-organisms & Public Health
One of the following statement is not true of viruses
A
They are micro-organisms
B
They are smaller than bacteria
C
They can be seen with an ordinary light microscope
D
They cause tobacco disease
E
They cause polio and smallpox
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 #407)
Biology
UTME / JAMB 1979
Variety of Organisms & Classification of Living Things
Solution
If you cross breed a tall variety (Tt) of maize with a short variety (tt), the ratio of tall to short plants in the offspring will be
A
2:1
B
1:2
C
1:1
D
1:3
E
3:1
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
From the crossing, we have 2Tt : 2tt ⇒ 2 : 2 = 1 : 1
(See diagram above for better understanding)
Source: Myschool Past Questions Archive (Record #408)
Biology
UTME / JAMB 1979
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
The digestive enzyme that coagulates proteins in milk is
A
Ptyalin
B
Pepsin
C
Renin
D
Trypsin
E
Amylase
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 #409)
Biology
UTME / JAMB 1979
Transport System in Plants & Animals
The hepatic portal vein is characterized by
A
Beginning and ending with capillaries
B
Connecting the liver and the kidney
C
Carrying deoxygenated blood
D
Ending with large capillaries
E
Having no capillaries
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 #410)
Biology
UTME / JAMB 1979
Transport System in Plants & Animals
The blood vessel which carries digested food from the small intestine to the liver is the
A
Renal vain
B
Renal artery
C
Hepatic artery
D
Hepatic portal vein
E
Coelic artery
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 #411)
Biology
UTME / JAMB 1979
Reproduction in Plants & Animals
The maize grain is regarded as a fruit and not a seed because
A
It is covered by a sheath of leaves
B
The testa and fruit wall fuse after fertilization
C
It has both endosperm and cotyledon
D
It has coleorhiza and coleoptile
E
The pericarp and seed coat are separated
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 #412)
Biology
UTME / JAMB 1979
Variety of Organisms & Classification of Living Things
Identical twins are produced under one of the following conditions
A
Two oval fertilized at the same time by two sperm
B
one ovum ferilized divides to give two embryos
C
one ovum fertilized, twins formed shortly before birth
D
Two ova fertilized by one sperm
E
one ovum fertilized by two sperm
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 #413)
Biology
UTME / JAMB 1979
Reproduction in Plants & Animals
The one-seeded fuit in which the pericarp and the seed coat have become fused together is known as
A
achene
B
samara
C
caryopsis
D
legume
E
drupe
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 #414)
Biology
UTME / JAMB 1979
Excretion & Homeostasis
Solution
The major function of contractile vacuole in amoeba is?
A
to secrete enzyme to digest food particles
B
to store excess food materials
C
to excrete nitrogenous waste
D
to absorb water from the surrounding
E
to collect and expel water in the cytoplasm
medium Difficulty
Verified Correct Answer: Option E
Biological Concept & Syllabus Guide
- The contractile vacuole (CV) complex is an osmoregulatory organelle of free-living amoebae and protozoa, which controls the intracellular water balance by accumulating and expelling excess water out of the cell, allowing cells to survive under hypotonic stress as in pond water.
- This implies that the contractile vacuole, as its name suggests, expels water out of the cell by contracting.
Source: Myschool Past Questions Archive (Record #415)
Biology
UTME / JAMB 1979
Basic Ecological Concepts, Ecosystems & Biomes
Solution
Grasses → grasshopper→ lizard → snakes → hawks. In the food chain, the organism which are the least in number are
A
grasses
B
grasshopper
C
lizards
D
snakes
E
hawks
medium Difficulty
Verified Correct Answer: Option E
Biological Concept & Syllabus Guide
Tertiary consumers are typically the least numerous in a food chain because of energy loss at each trophic level, with only about 10% of energy being transferred to the next level, limiting the amount of energy available to support higher-level consumers.
As energy flows up the food chain, a significant amount is lost as heat, used for metabolism, and not all food is consumed or digested. Only about 10% of the energy from one trophic level is available to the next. This energy loss means that there's less energy available to support larger populations of tertiary consumers, which are at the top of the food chain.
In summary, as you move from left to right, i.e from the primary producers to the primary consumer to secondary producers and so on, the number of species decreases due to energy loss at each trophic level, thereby limiting the amount of energy available to support the higher level consumers.
Source: Myschool Past Questions Archive (Record #416)
Biology
UTME / JAMB 1979
Variety of Organisms & Classification of Living Things
One significant difference between roots and stem is that
A
Branch roots originate in the pericycle while stem do not
B
Stems are always bove the ground while root are always below the ground
C
Stems are positively geotropic while roots are negatively geotropic
D
Stem are sometime used for storage while roots are never used
E
Stems grow in both length and circumference while root grow only in length
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 #465)