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Biology
WAEC / WASSCE 1990
Cell Structure, Organization & Cell Division
Most of the energy in the cell is produced in the
A
mitochondrion
B
lysosome
C
plastid
D
Golgi apparatus
E
cytoplasm
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 #17204)
Biology
WAEC / WASSCE 1990
Variety of Organisms & Classification of Living Things
The structure in the cell that controls the movement of substances in and out of the cell is the
A
cytoplasmic membrane
B
nuclear membrane
C
cytoplasm
D
protoplasm
E
endoplasm
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 #17206)
Biology
WAEC / WASSCE 1990
Cell Structure, Organization & Cell Division
Which of the following structures differentiates an animal cell from a plant cell?
A
Ribosomes
B
Cell membrane
C
Chloroplast
D
Mitochondrion
E
Lysosome
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 #17207)
Biology
WAEC / WASSCE 1990
Cell Structure, Organization & Cell Division
At the end of mitosis the number of cells produced from a parent cell is
A
four
B
six
C
eight
D
three
E
two
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 #17209)
Biology
WAEC / WASSCE 1990
Cell & Its Environment (Diffusion, Osmosis & Transport)
Which of the following statements is not correct of respiration?
A
Gaseous exchange occurs by diffusion
B
Oxygen combines with haemoglobin at the respiratory surface
C
Carbondioxide produced in the tissues is removed by the process of osmosis
D
There are no special organs for respiration in plants
E
In higher animals, respiratory gases are transported in solution.
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 #17210)
Biology
WAEC / WASSCE 1990
Respiration & Gaseous Exchange
Solution
Gaseous exchange takes place in the adult toad through the
A
buccal cavity, bladder and lungs
B
buccal cavity, skin and lungs
C
tympanic membrane, lungs and gills
D
buccal cavity, skin and spiracle
E
gills skin and buccal cavity
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
The toads breathe through their mouth, skin and lungs. The mouth cavity is also referred to as the buccal cavity.
Source: Myschool Past Questions Archive (Record #17277)
Biology
WAEC / WASSCE 1990
Respiration & Gaseous Exchange
Breathing movement in mammals is accompanied by regular movements of the diaphragm and the
A
intercostal muscles
B
vertebral column
C
clavicle
D
pleural cavity
E
floating ribs
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 #17288)
Biology
WAEC / WASSCE 1990
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
Which of the following are components of glomerular filtrate?
A
All the components of Blood except mineral salts
B
Water and salt only
C
All the components of blood except plasma protein and cells
D
Plasma proteins, red and white blood cells
E
Blood cells, amino acid, salts and nitrogenous wastes.
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 #17294)
Biology
WAEC / WASSCE 1990
Cell & Its Environment (Diffusion, Osmosis & Transport)
The mechanism by which useful materials in the glomerular filtrate are taken back into the blood is known
as
A
filtration
B
reabsorption
C
haemolysis
D
osmosis
E
dialysis
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 #17296)
Biology
WAEC / WASSCE 1990
Digestive System & Feeding Mechanisms
Which of the following takes place during the process of detoxication in the liver?
A
Poisonous substances in the body are converted into harmless substances
B
Fats and oils are broken into finer particles through emulsification
C
Excess glucose in the blood are converted into glycogen and stored
D
Worn- out red blood cells are broken down
E
Enough heat is generated to sustain the activities of the liver
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 #17298)
Biology
WAEC / WASSCE 1990
Supporting Tissues & Skeletal System
Diagram
Solution
The structure labelled A represents the
Attached Figure / Diagram
A
transverse process
B
neural spine
C
neural canal
D
centrum
E
metapophysis
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
the part labeled A is the neural canal.
Source: Myschool Past Questions Archive (Record #17242)
Biology
WAEC / WASSCE 1990
Supporting Tissues & Skeletal System
Which of the following statements is not correct about the functions of each group
of mammalian vertebrae?
A
Cervical vertebrae support the neck
B
Thoracic vertebrae articulate with the ribs
C
Lumbar vertebrae provide attachment for abdominal muscles
D
Sacral vertebrae support the skull and allow nodding and rotating movements
E
Caudal vertebrae support the tail and provide attachment for tail muscle
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 #17244)
Biology
WAEC / WASSCE 1990
Transport System in Plants & Animals
The stems of young herbaceous plants are kept upright mainly by
A
osmotic pressure
B
turgor pressure
C
transpiration pull
D
suction pressure
E
root pressure.
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 #17257)
Biology
WAEC / WASSCE 1990
Variety of Organisms & Classification of Living Things
Different tissues in plants contribute to the support of the parts as a result of the following characteristics
except
A
malleability
B
rigidity
C
flexibility
D
resilience
E
hardness
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 #17259)
Biology
WAEC / WASSCE 1990
Respiration & Gaseous Exchange
Water vapour is lost in plants during transpiration through
A
stomata and lenticels
B
xylem and stomata
C
sclerenchyma and stomata
D
parenchyma and lenticels
E
guard cells and lenticels
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 #17274)