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Biology
UTME / JAMB 2003
Transport System in Plants & Animals
Diagram
In the experiment, the layer of oil serves to prevent water loss
Attached Figure / Diagram
A
transpiration
B
evaporation
C
osmosis
D
guttation
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 #7229)
Biology
UTME / JAMB 2003
Variety of Organisms & Classification of Living Things
Organisms I, II, III and IV have surface/volume ratios of 1:2, 1:3, 1:4 and 1:5 respectively. The organism that is likely to have the most complex transport system is
A
IV
B
III
C
I
D
II
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 #7230)
Biology
UTME / JAMB 2003
Digestive System & Feeding Mechanisms
The part of the mammalian digestive system where absorption of nutrient takes place is the
A
ileum
B
colon
C
oesophagus
D
duodenum
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 #7231)
Biology
UTME / JAMB 2003
Reproduction in Plants & Animals
Solution
The best method of propagating sugarcane is by
A
Seeding sowing
B
Layering
C
Grafting
D
Stem cuttings
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Sugarcane is primarily and most effectively propagated through stem cuttings, also known as setts. Commercial sugarcane production rarely uses seeds because they have high genetic variability and low viability. Using stem cuttings ensures that the new plants are genetically identical clones of the parent, maintaining the desired sugar content and growth characteristics. These cuttings are typically segments of the stalk containing two or three buds (or "eyes"), which are planted horizontally or vertically in the soil to sprout into new canes.
Source: Myschool Past Questions Archive (Record #7232)
Biology
UTME / JAMB 2003
Excretion & Homeostasis
In mammalian males, the excretory and reproductive systems share the
A
Ureter
B
vas deferens
C
Urethra
D
Testes
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 #7233)
Biology
UTME / JAMB 2003
Supporting Tissues & Skeletal System
If water that has been coloured red is poured at the base of a wilting plant, it will appear as a red stain in the cells of the
A
xylem
B
epidermis
C
phloem
D
parenchyma
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 #7224)
Biology
UTME / JAMB 2003
Respiration & Gaseous Exchange
Diagram
The aim of the experiment is to demonstrate
Attached Figure / Diagram
A
that in mammal gaseous exchange takes place in the lungs
B
the part played by the pleural cavity and diaphragm in respiration
C
that a large amount of oxygen is absorbed by the lungs
D
the presence of carbon (IV) oxide in the exhaled air
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 #7225)
Biology
UTME / JAMB 2003
Respiration & Gaseous Exchange
Diagram
In the experimental set-up, the rubber sheet represents the organ called
Attached Figure / Diagram
A
pleural cavity
B
lungs
C
diaphragm
D
intercostal muscles
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 #7226)
Biology
UTME / JAMB 2003
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
The dark reaction of photosynthesis involves the
A
reduction of carbon(IV)oxide to organic
B
release of oxygen and the splitting of water
C
photolysis of water and the production of starch
D
splitting of water into hydrogen
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 #7227)
Biology
UTME / JAMB 2003
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
Diagram
The experiment is used to demonstrate that
Attached Figure / Diagram
A
plants lose water through guttation
B
transpiration occurs through the leaves
C
water is necessary for photosynthesis
D
leaves are important to photosynthesis
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 #7228)
Biology
UTME / JAMB 2003
Excretion & Homeostasis
Solution
Metabolic production of urea is carried out in the
A
urinary bladder and kidney
B
Liver
C
Pancreas
D
Kidney and malphigian tubule
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
All the metabolic wastes are excreted in a form of water solutes through the excretory organs (nephridia, Malpighian tubules, kidneys), with the exception of CO2, which is excreted together with the water vapor throughout the lungs. The elimination of these compounds enables the chemical homeostasis of the organism. Urea is produced in the liver and is a metabolite
Source: Myschool Past Questions Archive (Record #7234)
Biology
UTME / JAMB 2003
Nervous, Hormonal Coordination & Sense Organs
Diagram
The structure can be found in the
Attached Figure / Diagram
A
Sympathetic and parasympathetic nervous systems
B
Peripheral and central nervous system
C
Peripheral nervous system only
D
Central nervous system only
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 #7235)
Biology
UTME / JAMB 2003
Nervous, Hormonal Coordination & Sense Organs
Diagram
Solution
The point marked I is referred to as
Attached Figure / Diagram
A
myelin sheath
B
dendrites
C
axon
D
node of Ranvier
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
The diagram is that of neuron and the part labelled I is the node of ranvier.
A "node of Ranvier" in a neuron is a small gap in the myelin sheath that covers the axon, where the axon membrane is exposed to the extracellular fluid, allowing for the rapid transmission of electrical impulses along the axon by facilitating the influx of sodium ions at these specific points; essentially, it's a critical point where the signal can jump between sections of myelin to travel faster.
(See diagram above)
Source: Myschool Past Questions Archive (Record #7236)
Biology
UTME / JAMB 2003
Cell Structure, Organization & Cell Division
Homologous pairs of chromosome separate during
A
Cytolysis
B
Cleavage
C
Mitosis
D
Meiosis
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 #7237)
Biology
UTME / JAMB 2003
Reproduction in Plants & Animals
An example of a caryopsis is
A
Guava
B
Maize grain
C
Coconut
D
Tomato
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 #7238)