Biology
- #115 Control And Co-ordination In Mammals, The Nervous System
Humans, like all living organisms, can respond to changes in the environment and so increase survival. Humans have 2 control systems to do this: the nervous system and the endocrine (hormonal) system. The human nervous system controls...
- Androgen
Term: adrogen Origin: Anc Greek ?????????? < ??????, genitive of word ????/aner(=male) + ?????/genos(=generation, produced by) -à generating man Coined : In the article ?Endocrines theory and practice? in J Chemistry...
- Comparison Between Neural Control And Hormonal Control
Neural control and hormonal control: Major differences Neural control Hormonal control 1. Its action is always quick May be quick acting or slow acting 2. Information are...
- Comparison Between Hormones And Vitamins
Hormones and vitamins: Major differences Hormone Vitamin 1. Synthesized in endocrine glands and some by neurosecretory cells. Taken along with food from outside. 2. These are steroids...
- Chemical Co-ordination
Click here for PDFEndocrine system includes endocrine glands and their secretions (hormones).Hormones are non-nutrient chemicals that act as intercellular messengers and are produced in trace amounts. HUMAN ENDOCRINE (DUCTLESS) GLANDS1....
Biology
Comparison between quick acting hormones and lag period hormones
Quick acting hormones and Lag period hormones: Major differences
Quick acting hormones | Slow acting (Lag period) hormones |
1. They act immediately after secretion (within a few seconds) | They act after a lag period (may be hours or years) |
2. They are large sized molecules so are not diffusible through cell membrane of target cells. | They are small sized molecules so are diffusible through cell membrane |
3. The hormone receptors are present on the cell membrane of target cells | The hormone receptors are present in cytoplasm |
4. Their mode of action is through cascade effect | Mode of action is through mRNA synthesis. |
5. They will have second messengers such as cyclic AMP (cAMP), IP3 etc. | No second messengers |
6. E.g. Proteinous, peptide and amine hormones | E.g. Steroid hormones |
- #115 Control And Co-ordination In Mammals, The Nervous System
Humans, like all living organisms, can respond to changes in the environment and so increase survival. Humans have 2 control systems to do this: the nervous system and the endocrine (hormonal) system. The human nervous system controls...
- Androgen
Term: adrogen Origin: Anc Greek ?????????? < ??????, genitive of word ????/aner(=male) + ?????/genos(=generation, produced by) -à generating man Coined : In the article ?Endocrines theory and practice? in J Chemistry...
- Comparison Between Neural Control And Hormonal Control
Neural control and hormonal control: Major differences Neural control Hormonal control 1. Its action is always quick May be quick acting or slow acting 2. Information are...
- Comparison Between Hormones And Vitamins
Hormones and vitamins: Major differences Hormone Vitamin 1. Synthesized in endocrine glands and some by neurosecretory cells. Taken along with food from outside. 2. These are steroids...
- Chemical Co-ordination
Click here for PDFEndocrine system includes endocrine glands and their secretions (hormones).Hormones are non-nutrient chemicals that act as intercellular messengers and are produced in trace amounts. HUMAN ENDOCRINE (DUCTLESS) GLANDS1....