Question

In which process CO2, is released as a by-product of oxidation-reduction reactions?

A) Glycolysis
B) Krebs cycle (citric acid cycle)
C) Calvin cycle (light-independent reactions of photosynthesis)
D) Light-dependent reactions of photosynthesis
E) Chemiosmosis

Answer 1

Answer:

B) Krebs cycle (citric acid cycle)

Explanation:

Glycolysis breaks glucose into two pyruvate molecules. Pyruvate is decarboxylated into acetyl CoA and the reaction occurs in the matrix of mitochondria. In the mitochondrial matrix, acetyl CoA enters Kreb's cycle and is broken down into CO2 and H2O. For one molecule of acetyl CoA, two molecules of CO2 are released as a by-product. Therefore, out of three carbon atoms of pyruvate, two are released as CO2 during Kreb's cycle.

Answer 2

Krebs is the process in which $\rm \bold CO_2$, is released as a by-product of Oxidation-reduction reaction.

Krebs Cycle:

It is a sequence of Oxido-reduction reactions that form NADH, ATP and $\rm \bold CO_2$. This takes place in the mitochondria of most of the organism

• The pyruvate form Acetyl CoA(2C).

• Acetyl CoA enters the Kreb cycle and both the Carbon is released as $\rm \bold CO_2$.

• 1st when Isocitrate converts to form $\rm \bold {\alpha-Ketoglutarate}$, one $\rm \bold CO_2$ is released.

• Then $\rm \bold {\alpha-Ketoglutarate}$ convert to form Succinyl-Co-A, One $\rm \bold CO_2$ will released.

So, we can say that Krebs is the process in which $\rm \bold CO_2$, is released as a by-product of Oxidation-reduction reaction.

For more about Krebs Cycle you can refer to the link:

https://brainly.com/question/13153590?referrer=searchResults