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Animal Physiology Introduction (selective permeability of Plasma membrane,…
Animal Physiology Introduction
DEFINITION :pen: : Scientific study of the life-supporting properties, functions and processes of animals or their parts.
PHYSIOLOGICAL ADAPTATION :pen: : Allow Animal to maintain homeostasis and optimize their metabolism in response to the change in environment.
Levels of physiological adaptation : :check:cellular :check:tissue :check:organ :check:organ system
Example
CELL AS PHYSIOLOGICAL UNIT
Hormonal response, protein synthesis, enzymatic activities, neuronal signaling
Cell components
Plasma membrane
Protoplasm
Cytoplasm, Nucleoplasm
Organelle
Nucleus, Ribosomes, Endoplasmic reticulum, Golgi apparatus, Mitochondria, Cytoskeleton, Centrosome, Vesicle, Plasma membrane
Plasma membrane
Fluid Mosaic Model
selective permeability of Plasma membrane
small uncharged molecules & lipid soluble substance.
Use transport protein
Eg : Na+, K+ protein based hormones ( Active transport)
A) Channel protein
B) Carrier Protein
ions and water soluble substance
Through endocytosis and exocytosis
Eg: Pathogens and enzymes (Bulk)
phagocytosis
pinocytosis
receptor-mediated endocytosis
Large macromolecules
Directly pass through plasma membrane
Eg: Respiratory Gasses (passive transport)
