Question

Glycolytic process is characterized with all of these,
except
(1) Break down of C-C bond
(2) Oxydation
(3) Dehydration
(4) PGAL as key product
of alucose whic​

Answer 1

The glycolytic process is characterized by all of these, except PGAL as the key product. (option 4)

What is glycolysis?

• Glycolysis is the first process in respiration of all organisms.
• In glycolysis, glucose is broken down in a series of steps to minimize the loss and maximize the gain of ATP.
• It occurs in the cytoplasm. Its end products are 2 molecules of Pyruvic Acid (3 C-molecule).
• It is also called the EMP Pathway, after Gustav Embden, Otto Meyerhof and, J. Parnas.

What is PGAL?

• PGAL stands for phosphoglyceraldehyde (glyceraldehyde-3-phosphate).
• It is a 3 carbon compound formed in glycolysis when fructose 1.6- bisphosphate splits to give 2 3-carbon compounds.

The remaining characteristics are seen when:

1. Break down of C-C bonds

• It is seen when Fructose 1,6-bisphosphate aldolases into glyceraldehyde-3-phosphate(PGAL) and Dihydroxy Acetone Phosphate (DHAP).

2. Oxidation

• When PGAL is converted to 1,3-bisphosphoglyceric acid, NAD⁺ is reduced to NADH + H⁺.
• Hence PGAL gets oxidized.

3. Dehydration

• When 2-phosphoglycerate is converted to phosphoenolpyruvate, a water molecule is used.
• Hence, dehydration occurs.

Thus the correct option is 4. PGAL is the key product.