Question

Lack of oxygen in muscles often leads to cramps among cricketers. This results due to
(a) conversion of pyruvate to ethanol
(b) conversion of pyruvate to glucose
(c) non conversion of glucose to pyruvate
(d) conversion of pyruvate to lactic acid

NCERT Class X
Science - Exemplar Problems

Chapter_Life Processes

Answer 1

Muscular cramps may develop as a result of heavy exercise or fast running.
When muscle cell respire ANAEROBIC ALLY, there is partial break down of glucose and lactic acid. Accumulation of lactic acid causes muscle cramps.
Equation :(in absence of O2)

FOOD ( glucose) - - - - - - - > Latic acid + Energy
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So correct option is D-- conversion of pyruvate into lactic acid.
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Relief from muscle cramps can be obtained by a hot water bath or massage.

Answer 2

Answer:

Option - D

Explanation:

Conversion of pyruvate into lactic acid...