Question

Choose the correct combination of labelling the number of carbon compounds in the substrate molecules involved in citric acid cycle

• A. a - 4C, b - 6C, c - 5C, d - 4C, e - 4C
• B. a - 6C, b - 5C, c - 4C, d - 3C, e - 2C
• C. a - 2C, b - 3C, c - 4C, d - 5C, e - 6C
• D. a - 4C, b - 5C, c - 6C, d - 4C, e - 4C
• E. a - 4C, b - 6C, c - 4C, d - 4C, e - 4C

Answer 1

The correct option is A a - 4C, b - 6C, c - 5C, d - 4C, e - 4C

Oxaloacetic acid - C${}_4$H${}_4$O${}_5$, Citric acid - C${}_6$H${}_8$O${}_7$, α-Ketoglutaric acid - C${}_5$H${}_6$O${}_5$, Succinic acid - C${}_4$H${}_6$O${}_4$, Malic acid - C${}_4$H${}_6$O${}_5$.

So the correct option is ' Oxaloacetic acid - 4 carbon, Citric acid - 6 carbon, α-Ketoglutaric acid - 5 carbon, Succinic acid - 4 carbon and Malic acid - 4 carbon.'