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Biology
WAEC / WASSCE 1998
Cell & Its Environment (Diffusion, Osmosis & Transport)
One major difference between osmosis and diffusion is that diffusion
A
does not need a semipermeable membrane
B
does not take place in living tissues
C
takes place only in a liquid medium
D
takes place only in a gaseous medium
E
cannot be demonstrated experimentally
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 #19399)
Biology
WAEC / WASSCE 1998
Cell Structure, Organization & Cell Division
Which of the following is a difference between mitosis and meiosis?
A
Alignment of chromosomes along the equitorial plane
B
Replication of the chromosomes and the cell organelles
C
Pairing of homologous chromosomes
D
Formation of spindle fibers
E
Thickening of chromatin threads at prophase
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 #19400)
Biology
WAEC / WASSCE 1998
Reproduction in Plants & Animals
Which of the following can be used for vegetative propagation?
A
Ginger stem
B
Yam leaf
C
Plantain roots
D
Sweet potato tuber
E
Carrot root
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 #19401)
Biology
WAEC / WASSCE 1998
Transport System in Plants & Animals
Solution
Which of the following statements about the circulation of blood is not correct?
A
Deoxygenated blood flows in the heart through the vena cavae
B
Blood is pumped out of the heart through the aorta
C
Oxygenated blood from the lung; is carried to the left auricle
D
The oxygenated blood enters the lungs through the pulmonary vein
E
Ventricles contract to pump blood into the aorta
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
The right ventricle opens out into the pulmonary artery, which branches into two, one leading to the right lung and the other to the left lung.
Source: Myschool Past Questions Archive (Record #19407)
Biology
WAEC / WASSCE 1998
Variety of Organisms & Classification of Living Things
A difference between the auricle and the ventricle of the mammalian heart is that the
A
ventricles carry deoxygenated blood
B
ventricles do not have outlets
C
auricles have no valves
D
walls of the ventricles are lese muscular then that of the auricles
E
Walls of the ventricles are more muscular than that of the auricles
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 #19408)
Biology
WAEC / WASSCE 1998
Cell Structure, Organization & Cell Division
Solution
Which of the following organism respires through the body surface
A
Man
B
Fish
C
Tridax
D
Amoeba
E
Hibiscus
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
Amoeba is a unicellular organism that lacks specialized respiratory organs like lungs or gills. It performs gaseous exchange through its cell membrane (body surface) via simple diffusion. Because of its small size and high surface-area-to-volume ratio, oxygen from the surrounding water can easily pass into the cell, and carbon dioxide can pass out directly through the plasma membrane.
Source: Myschool Past Questions Archive (Record #19409)
Biology
WAEC / WASSCE 1998
Respiration & Gaseous Exchange
The stomata of a leaf performs the same function as
A
spiracles of insects
B
trachea of toads
C
pharynx of man
D
liver of man
E
scales of fish
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 #19410)
Biology
WAEC / WASSCE 1998
Respiration & Gaseous Exchange
Which of the following does not happen during inspiration?
A
intercostal muscles contract
B
Ribs move forward
C
Thoracic cavity increases
D
Diaphragm relaxes
E
Internal air pressure decreases
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 #19411)
Biology
WAEC / WASSCE 1998
Excretion & Homeostasis
Which of the these is not an excretory product of plant?
A
Tannin
B
Gum
C
Alkaloid
D
Sweat
E
Anthocyanin
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 #19412)
Biology
WAEC / WASSCE 1998
Excretion & Homeostasis
Which of these is not a function of the kidney?
A
Production of urine
B
Maintenance of acid-base balance in the body
C
Osmo-regulation
D
Removal of urea
E
Production of bile
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 #19413)
Biology
WAEC / WASSCE 1998
Excretion & Homeostasis
In which part of the kidney does ultrafiltration take place?
A
Bowman’s capsule
B
Distal convoluted tubule
C
Proximal convoluted tubule
D
Collecting duct
E
Afferent arteriole
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 #19414)
Biology
WAEC / WASSCE 1998
Digestive System & Feeding Mechanisms
Which of the following organs is concerned with detoxication of harmful compounds?
A
Kidney
B
Lungs
C
Gall bladder
D
Liver
E
Pancreas
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 #19415)
Biology
WAEC / WASSCE 1998
Nervous, Hormonal Coordination & Sense Organs
The hormone that promotes secondary sexual characteristics in females is
A
insulin
B
thyroxin
C
testosterone
D
oxytocin
E
oestrogen
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 #19416)
Biology
WAEC / WASSCE 1998
Reproduction in Plants & Animals
Which of the following is a method of artificial vegetative propagation?
A
Creeping stem
B
Layering
C
Corm
D
Rhizome
E
Bulbil
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 #19402)
Biology
WAEC / WASSCE 1998
Variety of Organisms & Classification of Living Things
Diagram
The above diagram represents a
Attached Figure / Diagram
A
longitudinal section of a stem
B
longitudinal section of a root
C
cross section of a root
D
transverse section of stem
E
longitudinal section of a leaf
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 #19403)