wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Choose the correct sequence :

A
carbamoyl phosphate - citrulline - arginine & fumarate - urea & ornithine
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
carbamoyl phosphate - citrulline - urea & ornithine - arginine & fumarate
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
arginine & fumarate - carbamoyl phosphate - citrulline - urea & ornithine
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
arginine & fumarate - citrulline - urea & ornithine - carbamoyl phosphate
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A carbamoyl phosphate - citrulline - arginine & fumarate - urea & ornithine
The conversion from ammonia to urea happens in five main steps.
1. Ammonia is converted to carbamoyl phosphate. This reaction requires two ATP molecules, which are converted to two ADP molecules.
2. Carbamoyl phosphate is converted to citrulline.
3. Aspartate and citrulline react to form an intermediate. This reaction requires one ATP molecule, which is converted to AMP.
4. Next, arginine and fumarate are formed.
5. Arginine is cleaved to form urea and ornithine. The ornithine begins the urea cycle again and urea is released out of the body through urine.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
Join BYJU'S Learning Program
CrossIcon