Urea cycle is linked to TCA cycle by -: (A) Arginine, (B) Ornithine, (C) Oxaloacetate, (D) Fumarate
Answer is D. Ans. is 'd' i.e., Fumarate |Ref: Harper 29th/e p. 276-277]o Fumarate is released during urea cycle, which is an intermediate of Kreb's cycle, thus linking the two.Both urea cycle and TCA cycle have been explained in previous years.