1989 - WAEC Biology Past Questions and Answers - page 1
Which of the following structures is responsible for osmoregulation?
Excretion is carried out through the structure labelled
The part labelled VII is made up of
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
Which of the following organelles is used for locomotion in Paramecium?
Which of the following is not true of the nucleus of a living cell? It contains
The cell membrane consists of
Which of the following is not likely to be found in the cell of a ripe tomato fruit?
Which of the following constitutes the main internal tissue of a leaf?
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?