14 Questions
Which of the following is synthesized from L-tryptophan?
Melatonin
What is the molecular weight of thyroglobulin protein?
650,000
Which hormone consists of 2 L-tyrosines in each molecule?
Thyroid Hormone (TH)
What is the result of coupling 1 MIT and 1 DIT?
$T3$
Which class of hormones is mainly derived from cholesterol?
Steroid hormones
What is the half-life of the hormone cortisol?
60-90 minutes
Which hormone is produced and secreted by the pineal gland in the brain to regulate sleep cycles?
Melatonin
What type of hormones require receptors on the cell membrane's inner side and then penetrate the nucleus and bind to a receptor associated with DNA?
Steroid hormones
Which hormone has a very short half-life of around one minute?
Epinephrine
What are the main class of lipid hormones in humans?
Steroid hormones
Which hormone is associated with the male reproductive system?
Testosterone
Which type of hormones cannot traverse cell membranes and need to attach to specific receptor proteins located on the external surface of the cell membrane?
Catecholamines and peptide hormones
What are other steroid hormones secreted by the adrenal glands, along with cortisol and aldosterone?
Androgens
Which hormone is released by the female reproductive system?
Estradiol
Test your knowledge of hormones of the anterior pituitary, monoamines, and neurotransmitters synthesized from L-tryptophan and L-tyrosine. Explore the characteristics of polypeptides, glycoproteins, and catecholamines.
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