AP BIOLOGY

Previous
Next

CELL RESPIRATION

AEROBIC RESPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In the Kreb cycle, the 2 carbon compound adds to the 4 carbon compound to make a:
A
2 Carbon compound called acetate
B
4 Carbon compound called oxaloacetic acid
C
6 Carbon compound called Citric Acid
D
NADH
Explanation: 

Detailed explanation-1: -Steps in the Krebs Cycle The two-carbon acetyl CoA is combined with a four-carbon oxaloacetic acid and hydrolyzed to produce a six-carbon compound called citric acid or citrate.

Detailed explanation-2: -Glucose is a six carbon compound, it is broken down to, a three carbon compound in every cell to release energy.

Detailed explanation-3: -Krebs cycle starts with the formation of a six carbon compound by the reaction between oxaloacetic acid and acetyl CoA. The 6 carbon compound formed is citric acid and this reaction is catalyzed by citrate synthase.

Detailed explanation-4: -Solution : Oxaloacetic acid is first 4-C compound that takes part in TCA or Kerbs cycle.It combines with Acetyl Co-A to form 6-C compound, i.e., citrate.

There is 1 question to complete.
Previous
Next