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A student setup the following apparatus to investigate a physiological process in animals. The set-ups were then left for one hour. a) What was the aim of...

A student setup the following apparatus to investigate a physiological process in animals. The set-ups were then left for one
hour.
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a) What was the aim of the experiment?
b) i) What observation was made in:
Tube A
Tube B
ii) Account for the change that occurs in Tube A.
c) State the role of Tube B in the above experiment.
d) Explain what would be observed if a green leaf was introduced in Tube A in place of the cockroach then set-up exposed to
light for one hour.

Answers


sharon
a) To investigate whether carbon (IV) oxide is produced during (aerobic) respiration by animals;
b) i) White precipitate formed;
ii) Lime water remains colourless;
iii) Cockroach produces carbon (IV) oxide (which react with lime water); during aerobic respiration;
c) Control setup;
d) Limewater will remain colurless; Green tube use the carbon (IV) oxide in the tube for photosynthesis;
sharon kalunda answered the question on May 24, 2019 at 12:12

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