CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

In which of the following process 33 - 35 ATP molecules are produced per hexose molecule?

A
Glycolysis
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Krebs cycle
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Both A and B
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
None of the above
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C Both A and B
The energy yielded from one molecule of glucose ( a hexose sugar ) is 2 ATP and 2 NADH. In the presence of oxygen, one NADH reoxidize and yields about 3 ATP. Hence, glycolysis in presence of oxygen yields 8 ATP i.e. 6 ATP from the oxidation of two molecules of NADH and 2 ATP from substrate level phosphorylation).
In Krebs cycle, the energy yielded from two pyruvate molecules ( each pyruvate molecule is a 3 carbon molecule, so a hexose sugar i.e. 6 carbon compound is first broken into 2 molecules of pyruvate) is about 25 ATP
So, from these two processes, 25+8 i.e. 33 ATPs are obtained.
Hence, per hexose molecule 33 ATP are produced.
So, the correct answer is C.

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