The appendix is attached here
a. large intestine
b. jejunum
c. duodenum
d. stomach
e. ileum

Large intestine

Explanation:

A vermiform appendix is a vestigial hollow tube like structure found in the human body which is attached to the large intestine. Most specifically the first part of the large intestine,cecum.

It is a pouch like structure which was previously used to digest food but now it has no use in human body and is considered as vestigial structure.

This structure is closed from one end and the other end opens in the large intestine where the small intestine empties its content.

cellular respiration oxidizes food into energy in the form of atps.

glycolysis (6 c hexose) > 2x atps are used > 6c hexose biphosphate > 2 x 3c triphosphate >

2 x 3c pyruvate (2x nadh produced from nad) and (4x atp produced)

pyruvate actively pumped mitochondrial matrix.