Which of the following statement(s) is/are true concerning the cellular compartm

ID: 7572 • Letter: W

Question

Which of the following statement(s) is/are true concerning the cellular compartmentation of the steps of respiration or fermentation?

Multiple Choice

A.) ATP is produced in the cytosol and the mitochondria.
B.) FADH2 is produced only in the mitochondria
C.) NADH is produced only in the mitochondria.
D.) Acetyl CoA is produced only in the mitochondria.
E.) Lactate is produced only in the cytosol.

Also, if there are any links available regarding Glycolysis, Photosynthesis, Krebs Cycle, and The Electron Transport Chain- perhaps tying them all together, it would be greatly appreciated.
I'm having trouble understanding and memorizing them and how they interact with each other and where they interact with each other.
Any links would be useful.
Thanks.

Explanation / Answer

A.) ATP is produced in the cytosol and the mitochondria.
-- True. ( glycolysis ATP in cytosol and Krebs cycle ATP seen in mitochondria).

B.) FADH2 is produced only in the mitochondria

--True (through glycolysis).

C.) NADH is produced only in the mitochondria.
--False. (It is also produced in cytoplasm during glycolysis).

D.) Acetyl CoA is produced only in the mitochondria.
---False. (The enzymes responsible for acetyl CoA production are present in cytoplasm and mitochondria in multiple copies).

E.) Lactate is produced only in the cytosol.
--False (It is produced in muscle cells).

The foolowing links can be useful for your studies. All the best.

http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/C/CellularRespiration.html

http://www.johnkyrk.com/mitochondrion.html

http://www.biotopics.co.uk/plants/photsy.html