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Biology Questions

Question 466:

The aperture between the left auricle and the left ventricle is guarded by the

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A Auricles valve
B Tricupid valve
C Ventricles valve
D Bicuspid valve

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Question 467:

A major limitation in the use of the potometer for measuring the rate of transpiration is that

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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

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Question 468:

Which of the following statement is NOT correct with respect to inhalation in mammals? The

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A Intercostal muscles contract
B Diaphragm is raised
C Ribs are raised
D Pressure of the thoracic cavity decreases

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Question 469:

The equation that can be used to summarize the process of anaerobic breakdown of sugar is

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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

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Question 470:

If a person is bitten by a snake on the leg, it is advisable for him to

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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

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