Some sugar solution is taken in a test tube. Pellets of live organisms X are added to
it. Test tube is closed with a cork and allowed to stand for some time. On opening
the cork a substance Y with a characteristic smell is noticed. Another substance Z is
formed which extinguishes a glowing splint.
(a) Identify X, Y, and Z.
(b) Name the process of converting sugar into Y, by the action of X.
(c) What type of respiration has X undergone in the given situation?
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Answer:
Explanation:
a)x- yeast
y- ethanol
z- carbon dioxide
b) alcoholic fermentation
c) anareobic respiration
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