- Joined
- May 9, 2008
- Messages
- 104
- Reaction score
- 0
A DNA segment has the follwing sequence 5'CCGAAT 3' What would be the sequence of the transcribed m-RNA
in an erythrocyte, where does the TCA cycle occur?
a. Matrix of mitochondria
b. Innermembrane of mitochondria
c. cell membrane
d. cytosol
e. None of these
Destroyer says that E is the correct answer. An RBC lacks mitochondra, there is no TCA cycle. The RBC derives its energy from glycolysis: anaerobic respiration occuring in the cytosol; the ETC is contained wthin the inner membrane of the mitochondria....
I agree wtih the answer, but i dont agree with the ETC being contained within the inner mmebrane of the mitochondria...how could this be possible if RBC lacks mitochondria?
#125 destroyer says norepinephrine is the primary neurotransmitter of the sympathetic nervous system.....but i thought it was epinephrine....i know both exist on symp.NS but isnt the ratio of epinephrine to norep 4:1 so wouldnt epinephrine be the primary neurtotransmitter?
in an erythrocyte, where does the TCA cycle occur?
a. Matrix of mitochondria
b. Innermembrane of mitochondria
c. cell membrane
d. cytosol
e. None of these
Destroyer says that E is the correct answer. An RBC lacks mitochondra, there is no TCA cycle. The RBC derives its energy from glycolysis: anaerobic respiration occuring in the cytosol; the ETC is contained wthin the inner membrane of the mitochondria....
I agree wtih the answer, but i dont agree with the ETC being contained within the inner mmebrane of the mitochondria...how could this be possible if RBC lacks mitochondria?
#125 destroyer says norepinephrine is the primary neurotransmitter of the sympathetic nervous system.....but i thought it was epinephrine....i know both exist on symp.NS but isnt the ratio of epinephrine to norep 4:1 so wouldnt epinephrine be the primary neurtotransmitter?