Jamb 1986 Biology Questions
Question 26:
The aperture between the left auricle and the left ventricle is guarded by the
- A Auricles valve
- B Tricupid valve
- C Ventricles valve
- D Bicuspid valve
Question 27:
A major limitation in the use of the potometer for measuring the rate of transpiration is that
- A It is made of breakable glass materials
- B It measures the rate of water intake
- C It measure the rate of water loss throuh the stern only
- D The movement of the air buble in the potometer cannot be timed accurately
Question 28:
Which of the following statement is NOT correct with respect to inhalation in mammals? The
- A Intercostal muscles contract
- B Diaphragm is raised
- C Ribs are raised
- D Pressure of the thoracic cavity decreases
Question 29:
The equation that can be used to summarize the process of anaerobic breakdown of sugar is
- A C<sub style='font-size: smaller;'>2</sub>H<sub style='font-size: smaller;'>12</sub>O<sub style='font-size: smaller;'>6</sub> 2C<sub style='font-size: smaller;'>2</sub>H<sub style='font-size: smaller;'>5</sub>OH + 2CO<sub style='font-size: smaller;'>2</sub>
- B 6Co<sub style='font-size: smaller;'>2</sub> + 6H<sub style='font-size: smaller;'>2</sub>O C<sub style='font-size: smaller;'>6</sub>H<sub style='font-size: smaller;'>12</sub>O<sub style='font-size: smaller;'>6</sub> + 6O<sub style='font-size: smaller;'>2</sub>
- C C<sub style='font-size: smaller;'>6</sub>H<sub style='font-size: smaller;'>12</sub>O<sub style='font-size: smaller;'>6</sub> + 6O<sub style='font-size: smaller;'>2</sub> 6CO<sub style='font-size: smaller;'>2</sub> + 6H<sub style='font-size: smaller;'>2</sub>O + enegy
- D C<sub style='font-size: smaller;'>6</sub>H<sub style='font-size: smaller;'>12</sub>O<sub style='font-size: smaller;'>6</sub> 2C<sub style='font-size: smaller;'>2</sub>H<sub style='font-size: smaller;'>5</sub>OH + 2CO<sub style='font-size: smaller;'>2</sub> + energy
Question 30:
If a person is bitten by a snake on the leg, it is advisable for him to
- A Keep moving so that the venom will ooze out with bleeding
- B Wash the wound with water containing antiseptic
- C Bandage the wound so that germs do not get in through it
- D Keep still and apply a tourniquet above the wound