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Biology
WAEC / WASSCE 2014
Cell Structure, Organization & Cell Division
Active transport can be defined as the movement of
A
substances from a region of high concentration to a region of low concentration
B
substances from a region of low concentration to a region of high concentration across a living cell membrane
C
substances across a living cell membrane using energy from the cell
D
movement of molecules in a medium
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 #35833)
Biology
WAEC / WASSCE 2014
Cell Structure, Organization & Cell Division
Solution
Which of the following cell inclusions can destroy other cell organelles?
A
Centriole
B
Ribosome
C
Lysosome
D
Mitochondrion
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
Lysosomes are small membrane-bound vesicles within the interior of the cells that contain digestive enzymes that break down damaged organelles/getting rid of old organelles or digesting bacteria taken into the cell by phagocytosis.
Source: Myschool Past Questions Archive (Record #35834)
Biology
WAEC / WASSCE 2014
Cell & Its Environment (Diffusion, Osmosis & Transport)
In which of the following yam tissues will osmosis occur?
A
Boiled and peeled
B
Raw and peeled
C
Boiled and unpeeled
D
Roasted and peeled
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 #35835)
Biology
WAEC / WASSCE 2014
Cell Structure, Organization & Cell Division
Solution
The following events occur during mitosis in a cell:
I. Chromatids separate;
II. Chromosomes become visible;
III. Chromosomes align at the equator
IV. Cytoplasm divides (Cytokinesis):
The correct sequence of the events is
A
lll, ll,lV,l.
B
ll, lll, l,lV
C
ll, l, lll, lV
D
II, IV, I, III.
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
During mitosis, 1. The chromosomes become conspicuous (visible)
2. The nuclear membrane disappears: a spindle forms and the chromosomes line up across the middle of the cell and attach to the spindle fibers at the centromeres.
3. The 'sister' chromatids are pulled apart to opposite ends (poles) of the cells as the spindle fibers contrast.
4. The cell divides into two daughter cells (cytokinesis).
Source: Myschool Past Questions Archive (Record #35836)
Biology
WAEC / WASSCE 2014
Reproduction in Plants & Animals
Which of the following statements about asexual reproduction is correct? It
A
always involves one parent but the offspring is genetically different from the parent.
B
may involve two parents but the offspring is always identical to one parent
C
always involves one parent and the offspring is genetically identical to the parent
D
involves two parents but the offspring is not genetically identical to any of the parents
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 #35837)
Biology
WAEC / WASSCE 2014
Respiration & Gaseous Exchange
Which of the following processes is not a function of the mammalian skin?
A
Regulation of body temperature
B
Reception of external stimuli
C
Excretion
D
Gaseous exchange
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 #35838)
Biology
WAEC / WASSCE 2014
Nervous, Hormonal Coordination & Sense Organs
The legs of an accident victim with a fractured vertebral column and injured spinal cord could not be raised because
A
impulses fromreceptors in the legs cannot travel to the brain
B
impulses from the brain cannot travel to the legs
C
chemical substances will be released at synapses in the central nervous system
D
reflexx actions cannot take place in the legs
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 #35839)
Biology
WAEC / WASSCE 2014
Reproduction in Plants & Animals
Which of the following conditions in flowering plants enhance self-pollination?
A
Cleistogamy
B
Heterostyly
C
Protandry
D
Protogyny
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 #35840)
Biology
WAEC / WASSCE 2014
Nervous, Hormonal Coordination & Sense Organs
The inability to maintain proper balance of the body in humans may be due to a defect in the
A
cochlea
B
Euastachian tube
C
Semi-circular canals
D
oval window
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 #35841)
Biology
WAEC / WASSCE 2014
Reproduction in Plants & Animals
The following substances pass into the blood of the foetus from the mother's blood via the placenta except
A
carbon dioxide
B
glucose
C
viruses
D
antibodies
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 #35842)
Biology
WAEC / WASSCE 2014
Reproduction in Plants & Animals
An inferior ovary of a flower is situated
A
below the floral parts
B
above the floral parts
C
at the same level with all the floral parts
D
at the centre of the floral parts
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 #35843)
Biology
WAEC / WASSCE 2014
Supporting Tissues & Skeletal System
Older parts of plant roots do not normally absorb water because
A
they lack xylem
B
they have small surface area
C
the phloem is dead
D
they lack root hairs
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 #35844)
Biology
WAEC / WASSCE 2014
Cell Structure, Organization & Cell Division
The amount of starch in a germinating seed decreases because the starch is used up
A
for respiration and building up of cells
B
to build cellulose cell wall
C
to develop meristematic tissues
D
for the production of enzymes
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 #35845)
Biology
WAEC / WASSCE 2014
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
The purpose of treating poor soil with lime is to increase the quantity of
A
nitrogen
B
phosphorus
C
carbohydrates
D
sulphur
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 #35846)
Biology
WAEC / WASSCE 2014
Nutrition in Plants & Animals (Photosynthesis & Food Substances)
A meal consisting of yam and a lot of vegetables is not balanced because it does not contain
A
carbohydrates
B
proteins
C
vitamins
D
minerals
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 #35847)