Assertion : Glycolysis is the first step of r | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Glycolysis is the process of breakdown of glucose or similar hexose sugar into two molecules of pyruvic acid through a series of enzyme-mediated r

Vedclass · Accepted Answer

If both the Assertion and Reason are incorrect.

Vedclass · Answer

(D) Glycolysis is the process of breakdown of glucose or similar hexose sugar into two molecules of pyruvic acid through a series of enzyme-mediated reactions,releasing energy $(ATP)$ and reducing power $(NADH_2)$.It is the first step of respiration,which occurs inside the cytoplasm and is independent of $O_2$.In glycolysis,two molecules of $ATP$ are consumed during the double phosphorylation of glucose to form fructose $1, 6$-diphosphate.Four molecules of $ATP$ are produced in the conversion of $1, 3$-diphosphoglycerate to $3$-phosphoglycerate and phosphoenolpyruvate to pyruvate.Additionally,two molecules of $NADH_2$ are formed during the oxidation of glyceraldehyde $3$-phosphate to $1, 3$-diphosphoglycerate.Since each $NADH$ is equivalent to $3\, ATP$,the net gain in glycolysis is $8\, ATP$.Therefore,both the Assertion and the Reason are incorrect.

Column $A$	Column $B$
$A$. Molecular oxygen	$(i)$. $\alpha$-Ketoglutaric acid
$B$. Electron acceptor	$(ii)$. Hydrogen acceptor
$C$. Pyruvate dehydrogenase	$(iii)$. Cytochrome $c$
$D$. Decarboxylation	$(iv)$. Acetyl $CoA$

Assertion : Glycolysis is the first step of respiration in which glucose completely breaks into $CO_2$ and $H_2O$.
Reason : In this process,there is net gain of twenty four molecules of $ATP$.

Similar Questions

Out of $95\%$ of surplus water lost by plants in atmosphere through aerial parts, the water lost in liquid form constitutes . . . . . . .

Which of the following is $NOT$ a characteristic of water?

Select the incorrect statement.

Which of the following is not a type of tooth?

Match the following and choose the correct option from those given below.

Column $A$ Column $B$

$A$. Molecular oxygen $(i)$. $\alpha$-Ketoglutaric acid

$B$. Electron acceptor $(ii)$. Hydrogen acceptor

$C$. Pyruvate dehydrogenase $(iii)$. Cytochrome $c$

$D$. Decarboxylation $(iv)$. Acetyl $CoA$

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Assertion : Glycolysis is the first step of respiration in which glucose completely breaks into $CO_2$ and $H_2O$.Reason : In this process,there is net gain of twenty four molecules of $ATP$.