AP BIOLOGY

CELL RESPIRATION

THE KREBS CYCLE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The innermost compartment in the mitochondrion and the Krebs cycle reaction site is the?
A
the matrix
B
acetyl-CoA
C
pyruvic acid
D
acetic acid
Explanation: 

Detailed explanation-1: -Matrix-the innermost compartment of the mitochondrion & site of Krebs cycle reactions. 2 steps-Citric Acid Production & Energy Extraction. Pyruvic acid is broken down into CO2 which produces Citric Acid.

Detailed explanation-2: -The innermost compartment, surrounded by the inner membrane, is the mitochondrial matrix.

Detailed explanation-3: -In eukaryotes, the Krebs cycle reactions take place in the mitochondrial matrix, a dense solution that surrounds the mitochondria crests: in addition to water, the matrix contains all the enzymes necessary for the biochemical reactions of the cycle, coenzymes, and phosphates.

Detailed explanation-4: -inner membrane is called the matrix in mitochondria and the stroma in chloroplasts. Both spaces are filled with a fluid containing a rich mixture of metabolic products, enzymes, and ions.

There is 1 question to complete.