MCQ
The correct sequence of anaerobic reactions in yeast is :
  • A
    $\text{Glucose}\xrightarrow{\ \ \text{cytoplasm}\ \ }\text{Pyruvate}\xrightarrow{\ \text{mitochondria}\ }\text{Ethanol}+\text{Carbondioxide}$
  • B
    $\text{Glucose}\xrightarrow{\ \ \text{cytoplasm}\ \ }\text{Pyruvate}\xrightarrow{\ \text{cytoplasm}\ }\text{Lactic acid}$
  • C
    $\text{Glucose}\xrightarrow{\ \ \text{cytoplasm}\ \ }\text{Pyruvate}\xrightarrow{\ \text{mitochondria}\ }\text{Lactic acid}$
  • $\text{Glucose}\xrightarrow{\ \ \text{cytoplasm}\ \ }\text{Pyruvate}\xrightarrow{\ \text{cytoplasm}\ }\text{Ethanol}+\text{Carbondioxide}$

Answer

Correct option: D.
$\text{Glucose}\xrightarrow{\ \ \text{cytoplasm}\ \ }\text{Pyruvate}\xrightarrow{\ \text{cytoplasm}\ }\text{Ethanol}+\text{Carbondioxide}$
Breakdown of pyruvate; under anaerobic condition; takes place in cytoplasm of yeast. Ethanol and carbon dioxide are produced at the end of this reaction.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free