wiz-icon
MyQuestionIcon
MyQuestionIcon
3
You visited us 3 times! Enjoying our articles? Unlock Full Access!
Question

When one molecule of pyruvic acid undergoes krebs cycle, how many CO2 molecules are formed?

A
6 CO2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
3 CO2
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
No CO2 formed
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
2 CO2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B 3 CO2
Three CO2 molecules are formed. One CO2 is formed during oxidative decarboxylation of pyruvic acid. Two CO2 molecules are formed in krebs cycle, one during the conversion of 6-carbon oxalosuccinate to 5-carbon α-ketoglutarate and the other during the conversion of α-ketoglutarate to 4-carbon succinyl CoA.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Aerobic Respiration
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon