2015 - WAEC Biology Past Questions & Answers - page 1

1
Which of the following organisms is not a protozoan?
A
Amoeba
B
Ascaris
C
Plasmodium
D
Paramecium
CORRECT OPTION: b
2
The structure of the cell membrane is a
A
double layer and a double protein layer
B
middle bi-layer of protein with a lipid layer on either surface
C
middle bi-layer of lipid with a protein layer on either surface
D
protein layer with two inner lipid layers
CORRECT OPTION: c
3
Which of the following cells is a specialized cell?
A
Amoeba
B
Plasmodium
C
Guard cell
D
Meristematic cell
CORRECT OPTION: c
4
When a Spirogyra filament is placed in a concentrated salt solution for 30 minutes, the cell would become
A
plasmolysed
B
turgid
C
shortened
D
elongated
CORRECT OPTION: a
5
Water and salts are both lost from the human body in
A
breath and sweat
B
breath and Urine
C
breath, urine and sweat
D
sweat and urine
CORRECT OPTION: d
6
Which of the following features could be used to determine the growth of a seedling?
A
Number of flowers
B
Number of leaves
C
Length of flowers
D
Length of radicle
CORRECT OPTION: d
7
A plant that commonly undergoes vegetative propagation by means of leaves is
A
Hibiscus
B
Bryophylum
C
Crotalaria
D
Spirogyra
CORRECT OPTION: b
8
Blood pressure is higher in the arteries as a result of
A
stree
B
contraction and relaxation
C
blockage in the arteries
D
presence of valves
CORRECT OPTION: b
9
A farmer who wants to keep seeds for three years before planting and wants to prevent them from sprouting uses
A
auxin
B
gibberellins
C
abscisin
D
cytokinins
CORRECT OPTION: c
10
A person had an accident that affected the skull but not the nose and later lost the sense of smell. The accident must have a affected the
A
nose by extension
B
olfactory lobes of the brain
C
passage from the nose to the brain
D
part of the skull near the nose
CORRECT OPTION: b
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