Question Library
Browse, filter, and study verified past examination questions with step-by-step mathematical reasoning.
Searching 18,000+ Questions...
Sifting topics, KaTeX formulas & verified solutions
Showing 9871–9885 of 29821 verified questions
Sort by:
Biology
WAEC / WASSCE 2013
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
The name of the enzyme that catalyses the conversion of glucose to glucose-6-phosphate at the beginning of glycolysis is
A
phospho-fructokinase
B
glucose isomerase
C
hexokinase
D
glucose-6-kinase
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 #35800)
Biology
WAEC / WASSCE 2013
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
Solution
The correct arrangement of food classes of the same quantity in the order of magnitude of energy value in animals in descending order is
A
Carbohydrates, fats and oils, water, protein
B
Fats and oils, carbohydrates, protein, water
C
Water, fats and oils, carbohydrates, protein
D
Protein, fats and oils water and carbohydrates
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
In the order of magnitude of energy value in animals in descending order is Fats and oil, carbohydrates, proteins and water. This is due to the fact that fats and oils have the highest energy value, about twice that of carbohydrates.
Fats and oils contain significantly more energy per gram than carbohydrates. Fats provide approximately 9 calories per gram, while carbohydrates yield around 4 calories per gram. This difference in energy density means that fats are a more concentrated source of fuel for the body.
Source: Myschool Past Questions Archive (Record #35801)
Biology
WAEC / WASSCE 2013
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
Which of the following substances is not complex carbohydrate?
A
Glycogen
B
Cellulose
C
Starch
D
Glucose
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 #35803)
Biology
WAEC / WASSCE 2013
Growth, Micro-organisms & Public Health
The bacteria that reduce nitrates in the soil into gaseous nitrogen are referred to as
A
nitrifying bacteria
B
denitrifying bacteria
C
putrefying bacteria
D
saprophytic bacteria
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 #35809)
Biology
WAEC / WASSCE 2013
Basic Ecological Concepts, Ecosystems & Biomes
A pyramid of numbers is constructed by
A
comparing living and non-living things
B
measuring productivity
C
conducting census
D
labelling the living organisms
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 #35810)
Biology
WAEC / WASSCE 2013
Growth, Micro-organisms & Public Health
The main reason for immunizing children is to
A
destroy pathogens in their bodies
B
increase the production of white blood cells
C
stimulate the production of antibodies
D
simulate the production of antigens
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 #35811)
Biology
WAEC / WASSCE 2013
Basic Ecological Concepts, Ecosystems & Biomes
Rhizobium which lives in the root nodules of leguminous plants is an example of the association known as
A
commensalism
B
epiphytism
C
mutualism
D
saprophytism
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 #35812)
Biology
WAEC / WASSCE 2013
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
Solution
Ascaris lumbricoides is a parasitic
A
flat worm
B
round worm
C
arthropod
D
elastic worm
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
Ascaris lumbricoides is a parasitic worm that infects humans. Ascaris lumbricoides is a nematode, or roundworm, that lives in the human intestines. It's the most common parasitic worm in humans. The common name for Ascaris lumbricoides is the human roundworm
Source: Myschool Past Questions Archive (Record #35813)
Biology
WAEC / WASSCE 2013
Growth, Micro-organisms & Public Health
The following organisms are pests of plants except
A
birds
B
nematodes
C
bacteria
D
rodents
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 #35814)
Biology
WAEC / WASSCE 2013
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
The absence of alimentary canal in the parasitic flatworm can be attributed to the fact that
A
its body does not feed
B
it has no enzymes
C
its body absorbs digested food
D
it has suckers on the scolex
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 #35815)
Biology
WAEC / WASSCE 2013
Variety of Organisms & Classification of Living Things
Which of the following human activities would help prevent endangered species from extinction?
A
Uncontrolled killing of species
B
Regular clearing of the forest vegetation
C
Temporary maintenance of species in zoological gardens
D
Regular irrigation of their natural habitats
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 #35816)
Biology
WAEC / WASSCE 2013
Population Ecology, Habitats & Conservation
Which of the following statements is not a reason for conserving wildlife?
A
Attraction of tourists into the country
B
Serving as a source of food
C
Serving as a source of income
D
increasing the amount of rainfall
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 #35817)
Biology
WAEC / WASSCE 2013
Variation & Genetics (Heredity)
Solution
In genetics, linkages refer to the linking of genes of the
A
same chromosomes
B
different chromosomes
C
same nucleus
D
different nuclei
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
Linkage refers to the presence of two different genes on the same chromosome
Source: Myschool Past Questions Archive (Record #35818)
Biology
WAEC / WASSCE 2013
Variation & Genetics (Heredity)
A man's blood group is AB. What is the probability of the man giving birth to a child with blood group O?
A
0%
B
25%
C
50%
D
100%
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 #35819)
Biology
WAEC / WASSCE 2013
Variety of Organisms & Classification of Living Things
When a man who is Rh-positive marries a woman who is Rh-negative, there will be incidence of
A
still births
B
sicklers
C
albinos
D
living children
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 #35820)