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At the arterial end of a capillary the blood is under a fairly high pressure. This hydrostatic pressure 'squeezes' a fluid called tissue fluid out of the pores in the walls of the capillary (fenestrations...

Base deletion leads to a frame shift error as the DNA code is read in triplet codons and is non overlapping. This leads to different amino acids being translated and a different primary structure. This le...

Exocytosis. Vesicles transport proteins from the Golgi apparatus to the plasma membrane

Enzymes are what are called 'biological catalysts;' that means they speed up how fast a reaction takes but they are unchanged by the reaction themselves. They work by lowering the activation energy needed...

An action potential (AP) reaches the pre-synaptic membrane. This causes the voltage-gated calcium channels to open, and calcium ions flow down their concentration gradient into the pre-synaptic terminal. ...