Question

Match the following columns:

Column I	Coumn II
A. Oxaloacetic acid	1. 6C Compound
B. Phosphoglyceric acid	2. 5C Compound
C. Isocitric acid	3. 4C Compound
D. α-ketogluteric acid	4. 3C Compound

• A. A-1, B-2, C-3, D-4
• B. A-3, B-4, C-1, D-2
• C. A-2, B-4, C-1, D-3
• D. A-3, B-2, C-4, D-1

Answer 1

The correct option is B A-3, B-4, C-1, D-2

The components given in the table are the intermediates formed during Krebs cycle and Calvin cycle. The respiratory intermediates of Krebs cycle are - oxaloacetic acid a 4 carbon compound, isocitric acid a 6 carbon compound and α- ketoglutaric acid a 5 carbon compound . The photosynthetic intermediate of the Calvin cycle is phosphoglyceric acid, which is a 3 carbon compound.