In the production of ethanol, pyruvic acid is first converted to acetaldehyde by this enzyme

Question

In the production of ethanol, pyruvic acid is first converted to acetaldehyde by this enzyme (A) alcohol dehydrogenase (B) alcohol oxidase (C) pyruvate dehydrogenase (D) pyruvate decarboxylase

Tardigrade Admin · Accepted Answer

In ethyl alcohol fermentation (i) 2 CH 3C COCOOH xrightarrow[TPP,MG2+] textPyruvatede carboxylase underset textAcetaldhyde2 CH 3 CHO +2 CO2( uparrow) (ii) 2 CH 3 CHO +2 NADH 2 xrightarrow[ textDehydrogenase] textAlcohol underset textEthylalcohol2 CH 3 CH 2 OH +2 NAD

Q. In the production of ethanol, pyruvic acid is first converted to acetaldehyde by this enzyme

alcohol dehydrogenase

alcohol oxidase

pyruvate dehydrogenase

pyruvate decarboxylase

In ethyl alcohol fermentation
(i) $2 C H_{3 C} COCOO H Pyruvatede carboxylase TPP, M G^{2 +}$
$Acetaldhyde 2 C H_{3} C H O + 2 C O_{2} (↑)$
(ii) $2 C H_{3} C H O + 2 N A D H_{2} Alcohol Dehydrogenase$
$Ethylalcohol 2 C H_{3} C H_{2} O H + 2 N A D$

Q. In the production of ethanol, pyruvic acid is first converted to acetaldehyde by this enzyme

alcohol dehydrogenase

alcohol oxidase

pyruvate dehydrogenase

pyruvate decarboxylase

In ethyl alcohol fermentation (i) 2CH3C​COCOOHPyruvatede carboxylaseTPP,MG2+​ Acetaldhyde2CH3​CHO​+2CO2​(↑) (ii) 2CH3​CHO+2NADH2​AlcoholDehydrogenase​ Ethylalcohol2CH3​CH2​OH​+2NAD

In ethyl alcohol fermentation
(i) $2 C H_{3 C} COCOO H Pyruvatede carboxylase TPP, M G^{2 +}$
$Acetaldhyde 2 C H_{3} C H O + 2 C O_{2} (↑)$
(ii) $2 C H_{3} C H O + 2 N A D H_{2} Alcohol Dehydrogenase$
$Ethylalcohol 2 C H_{3} C H_{2} O H + 2 N A D$