Question

Anti-ageing hormone is
A. Thyroxine
B. Melatonin
C. Estrogen
D. Testosterone

Answer 1

Hint: Hormones in our body have a vital role in the growth and development and also reproduction. There are a set of hormones for regulating reproduction mechanisms. Both the pre and post-delivery mechanisms are also regulated by the hormones.

Step by step answer:Hormones are the chemical messengers secreted in the blood to carry out major and particular functioning. They are responsible for development and growth. The hormones can be steroid-derived, peptide hormones, and amino acid derivatives. They can be secreted by either endocrine glands or exocrine glands.
-Option A: Thyroxine: The cells that surround the oocyte in the follicle are follicle cells. They are triggered by the levels of gonadotropins. They protect the egg. They produce thyroid hormones thyroxine (T4) and triiodothyronine (T3). Thyroxine stimulates the consumption of oxygen by active tissues. It is responsible for the oxidation of glucose in tissues.
-Option B: Melatonin: It is derived from the tryptophan amino acid. It is secreted by the pineal gland. It maintains the 24 hrs sleep-wake cycle, temperature. It will also affect the pigmentation and metabolism of the body.
-Option C: Estrogen: It is the female sex hormone. Ovarian follicles stimulate the development of female libido via this hormone.
-Option D: Testosterone: It is the male sex hormone maintaining the male libido and secondary sexual characters. It is released from the testis.
So the answer is option B: Melatonin.

Note: The increased amount of prolactin alters the production of estrogen and progesterone. This can stop ovulation. In a non-pregnant lady, the prolactin increase will decrease the lipid metabolism.