AP BIOLOGY

CELL RESPIRATION

THE KREBS CYCLE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following combination is true?
A
4C Malate, 5C Oxaloacetate
B
4C Isocitrate, 5C Succinyl CoA
C
4C Fumarate, 5C alpha-ketoglutarate
D
4C Citrate, 5C Succinate
Explanation: 

Detailed explanation-1: -Hence, the correct answer is ‘Oxaloacetic acid’

Detailed explanation-2: -RUBP is a 5-carbon compound that acts as a carbon dioxide acceptor in the Calvin cycle in photosynthesis.

Detailed explanation-3: -This cycle starts with the entry of acetyl CoA. Acetyl CoA is a 2C compound combined with a 4C compound of oxaloacetate in presence of enzyme citrate synthase, this leads to the production of 6C compound dicarboxylic or citric acid.

Detailed explanation-4: -‘alpha‘-ketoglutaric acid is the only 5C compound formed in krebs’ cycle.

There is 1 question to complete.