Question

Which is an example of chemical to electromagnetic energy conversion that occurs in living organisms?

(a) ATP-driven muscle contraction

(b) ATP-dependent photon emission in fireflies

(c) light-induced electron flow in chloroplasts

(d) ATP-driven active transport across a membrane

The question was posed to me during an interview for a job.

The doubt is from Phosphoryl Group Transfers and ATP in division Principles of Bioenergetics and Glycolysis of Biochemistry

Answer 1

Correct choice is (b) ATP-dependent photon emission in fireflies

For explanation I would say: ATP-driven muscle contraction is an example for chemical to mechanical energy conversion.

Light-induced electron flow in chloroplasts is an example for electromagnetic to electrical energy conversion.

ATP-driven active transport across a membrane is an example for chemical to osmotic energy conversion.