University:
York University
Course:
BIOL 2020 | Biochemistry
Academic year:

2023
Views:

284

Pages:

2
Author:

Nick T.

A Single Hormone Can: Affect multiple tissues or organs Result in changes of the endocrine system Hormones Regulate Hormone Activity Enzyme = Catalyst Hormone is not changed as a result of binding to a receptor Binding force between hormone and receptor is noncovalent Water Soluble Hormones Cannot Cross the Cell Membrane Steroids can easily enter cells, fast-acting The Chemistry of Depression What is the Biochemical Basis of Depression? Depression is due to the result of chemical imbalances in the brain. NE: Norepinephrine 5-HT: Serotonin DA: Dopamine Unbalance of these chemicals = Depression The hormone Cortisol helps counteract inflammation Desensitization of receptors = addiction Agonist = Act on receptor site, interacts with a receptor to produce or enhance normal response Antagonist = Decrease signal, block receptor