Question

Identify A and B in the following.$\mathrm{Lipids}\to A\to B\to \mathrm{Kreb}\text{'}s\mathrm{cycle}\to {\mathrm{CO}}_2+H_{2}O+\mathrm{Energy}$

• A. A - Amino acid, B - Glucose
• B. A - Fatty acid, B - Acetyl-CoA
• C. A - Pyruvate, B - Fatty acid
• D. A - Fatty acid, B - Pyruvate

Answer 1

The correct option is B A - Fatty acid, B - Acetyl-CoA

If there is insufficient amount of glucose in the body then proteins and lipids can also be utilised to produce energy.
Lipids are broken down into ---> fatty acids which are directly converted into acetyl-co-A---> this acetyl-co-A then enters the Kreb's cycle --> to form carbon-di-oxide and water with the release of energy.