Search over 10,000 free study notes

receptors detect a changes in the enviroment and effectors allow a response to be made. an example of this would be the jerk reflex when accidentally touching something thats hot. temperature receptors in...

An enzyme is a catalyst which speeds up a reaction by providing an alternative pathway with lower activation energy required. 

Mitochondria and ribosomes are both structures inside the animal cell. Mitochondria are the site of respiration. They supply energy to the cell by aerobic respiration. Ribosomes are strucutres where prote...

1- The drug has a similar shape to the substrate which is complementary to the active site of the electron transport chain proteins. 2- Competitive inhibition stops the transfer of electrons, coming from ...

The heart follows a cycle of contraction (systole) and relaxation (diastole), like this:

whole heart diastole --> atria systole --> ventricular systole --> atria diastole, ventricular syst...