Krebs cycle occurs in the of a eukaryotic cell. question 27 answers matrix of the mitochondrion cristae membranes of the mitochondrion nucleus cytoplasm

The answer to the question stated above is matrix of the mitochondria or matrix of the mitochondrion
Krebs cycle occurs in the matrix of the mitochondria of a eukaryotic cell.
Additional information:
 >matrix of the mitochondria is the fluid filled interior of the mitochondria.

Because the earth is not round ,but it may seem round when viewed from ,our planet but true some points earth is not round was an oblate spheroid -a square that it squashed as globe however is not even a perfect oblate spheroid.in fact isaac newton's first proposed that earth was not perfectly round but it was an oblate spheroid instead.that mean a square that is squashed as its poles and swollen at the