1989 - WAEC Biology Past Questions and Answers - page 1
1
Which of the following structures is responsible for osmoregulation?
A
I
B
II
C
III
D
IV
correct option: b
Users' Answers & Comments2
Excretion is carried out through the structure labelled
A
I
B
III
C
IV
D
V
correct option: d
Users' Answers & Comments3
The part labelled VII is made up of
A
carbohydrates
B
lipid materials
C
waste materials
D
protein materials
correct option: b
Users' Answers & Comments4
Below is a List of the levels of organization in organisms.
i. Tissue ii. System ii. Cell iV. organ The correct sequence of the levels in an increasing order of complexity is
i. Tissue ii. System ii. Cell iV. organ The correct sequence of the levels in an increasing order of complexity is
A
I,II,III
B
lll, I, l\/, ll
C
lll, IV, l, ll
D
lV, lll, I, ll
correct option: b
Users' Answers & Comments5
Below is a List of the levels of organization in organisms.
i. Tissue ii. System ii. Cell iV. organ Which of the following organelles is used for locomotion in Paramecium?
i. Tissue ii. System ii. Cell iV. organ Which of the following organelles is used for locomotion in Paramecium?
A
pseudopodium
B
Trchocyst
C
Cilium
D
pellicle
correct option: c
Users' Answers & Comments6
Which of the following is not true of the nucleus of a living cell? It contains
A
chromosome
B
Nucleolus
C
nucleoplasm
D
chromatids
correct option: e
From the above diagram, we see that the components of the nucleus excludes ribosomes.
7
The cell membrane consists of
A
carbohydrates and lipids
B
vitamins and proteins
C
lipids and proteins
D
water and sugar
correct option: c
Users' Answers & Comments8
Which of the following is not likely to be found in the cell of a ripe tomato fruit?
A
plastids
B
Chlorophyll
C
Cellulose cell wall
D
Mitochondrion
correct option: b
Users' Answers & Comments9
Which of the following constitutes the main internal tissue of a leaf?
A
Cuticle
B
Mesophyll
C
Vascular tissue
D
Lower epidermis
correct option: b
Users' Answers & Comments10
Four cells with osmotic potential equivalent to that of 3% salt solution were immersed respectively in solutions
of different concentrations labeled as follows: I = 4% salt solution; II = 6% salt solution III = 1% salt solution;
IV = 10% salt solution; V = 5% salt solution. Which of the solutions will cause an increase in osmotic
pressure within the cell?
of different concentrations labeled as follows: I = 4% salt solution; II = 6% salt solution III = 1% salt solution;
IV = 10% salt solution; V = 5% salt solution. Which of the solutions will cause an increase in osmotic
pressure within the cell?
A
I
B
II
C
III
D
IV
correct option: c
Users' Answers & Comments