2000 - WAEC Biology Past Questions and Answers - page 2
11
The following are the functions of supporting tissues in plant except
A
rigidity
B
flexibility
C
strengthening
D
secretory
correct option: d
Users' Answers & Comments12
Which of the following organisms has the largest surface area-to-volume ratio?
A
Man
B
Earthworm
C
Amoeba
D
Grasshopper
correct option: c
Users' Answers & Comments13
Which of the following plant parts does not perform supportive function?
A
Parenchyma, xylem and . collenchyma
B
Epidermis, sclerenchyma and xylem
C
Parenchyma, collenchyma and sclerenchyma
D
Sclerenchyma, xylem and collenchyma
correct option: b
Users' Answers & Comments14
The following are useful effect of micro-organisms except
A
production of vaccines
B
curing of tobacco
C
tanning of leather
D
decay of meat
correct option: d
Users' Answers & Comments15
Which of the following structures is not present in the vascular bundles of a dicot stem?
A
Xylem
B
Phloem
C
lntra-fascicular cambium
D
Inter-fascicular cambium
correct option: c
Users' Answers & Comments16
When a mammal respires anaerobically for a long time
A
pyruvic acid is convened into acetyl COA
B
more energy is released from fats in the body
C
lactic acid accumulates in the muscles
D
the Krebs cycle is fully completed.
correct option: b
Users' Answers & Comments17
Which of the labelled structures in the diagram are involved with the entry
of carbondioxide for photosynthesis?
of carbondioxide for photosynthesis?
A
I, II and III only
B
I, II, III and VI
C
I, II, V and VI
D
I, II, III, and IV
correct option: b
Users' Answers & Comments18
Which of the labelled structures in the diagram will shrink when plasmolysis
occurs?
occurs?
A
I
B
II
C
III
D
IV
correct option: a
Users' Answers & Comments19
The condition shown in the above diagram is due to
A
conversion of starch to sugar
B
conversion of sugar to starch
C
excess water in structure labelled I
D
presence of carbondioxide in the structure labelled I
correct option: c
Users' Answers & Comments20
Which of the following solutions will induce the condition shown in the diagram?
A
Hypertonic solution
B
Hypotonic solution
C
isotonic solution
D
Distilled water.
correct option: b
Users' Answers & Comments