USMLE Forums banner
1 - 6 of 6 Posts

·
Registered
Joined
·
187 Posts
Red Blood Cells depend exclusively on anaerobic glycolysis to produce energy (i.e. they have no mitochondria), irrespective of what the conditions are (glucose sufficiency after a meal or glucose depletion during fasting). Thus answer B is correct and answers A & E are not correct.

On the contrary, neurons may also use ketoacids as fuel, but this is not the case here (answers C & D are incorrect, although they seem very tempting).
 

·
Registered
Joined
·
68 Posts
Red Blood Cells depend exclusively on anaerobic glycolysis to produce energy (i.e. they have no mitochondria), irrespective of what the conditions are (glucose sufficiency after a meal or glucose depletion during fasting). Thus answer B is correct and answers A & E are not correct.

On the contrary, neurons may also use ketoacids as fuel, but this is not the case here (answers C & D are incorrect, although they seem very tempting).
Simple concept but you nailed it in the head here for me. Thanks
 

·
Registered
Joined
·
919 Posts
Discussion Starter · #5 ·
yes B

Dr. ath's explanation was good enough. when come across this question no need to look at other choices. RBCs must and always use Glucose only. neurons (brain cells) can resort to ketones during depletion but the RBCs continue to use glucose.
 
1 - 6 of 6 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top