Biomolecules

Which one is responsible for production of energy in bio-reaction?

1. Thyroxine
2. Adrenaline
3. Oestrogen
4. Progesterone

Answer

(1) Thyroxine

Solution

Thyroxine, the iodinated derivative of the amino acid tyrosine produced by the thyroid gland, controls the basal metabolic rate, i.e. the rate of oxidation of food in the cells that releases energy.

Adrenaline acts in emergency (fight-or-flight) responses, while oestrogen and progesterone are sex hormones.

∴ Thyroxine is responsible for production of energy in bio-reactions.

Answer: (1)