The apparatus below was used to investigate anaerobic respiration:-

      

The apparatus below was used to investigate anaerobic respiration:-

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a) How would you remove dissolved oxygen from the glucose before the experiment commencing?

(b) State what happens to the lime water as the experiment proceeds to the end

(c) Describe the reactions in the experiment

(d) Explain what would happen if the temperature of glucose solution and yeast was raised beyond 45 degrees C?

  

Answers


Martin
(a) Boiling

(b) becomes milky/cloody /precipitate.

(c) Yeast produces enzyme amylase which catalyze breakdown of glucose anaerobically into energy (heat)

CO2 and Ethanol

CO2 makes lime water to become cloudy

(d) High temperature donators enzymes, reduces/stops respiration/stops the reaction
marto answered the question on October 4, 2019 at 11:33


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