mediated

Neuron

...synapses. This communication is usually chemically mediated by rapid secretion of neurotransmitter molecules . Pre-synaptic neurons (i.e.the neurons which release the neurotransmitter) may produce in the post-synaptic neurons (i.e. the neurons being affected by the neurotransmitter) an electrical stimula...

Michaelis-Menten kinetics

...elis-Menten kinetics describe the rate of enzyme mediated reactions for many enzymes. It is named for Leon...stant. To determine the maximum rate of an enzyme mediated reaction, the substrate concentration ( [S] ) is increased until a constant rate of product format...

Facilitated diffusion

...embranes , with the help of transport proteins ( mediated transport ). Small uncharged molecules can easily diffuse across cell membranes. However, due to the hydrophobic nature of the lipids that make up cell membranes, water-soluble molecules and ions cannot do so; instead, they are helped across by tr...

Enzyme

... 2 Structure and function 2.1 Rate of enzyme mediated reactions 2.2 Specificity 2.3 Kinetics 2.4 M...pled reactions in one direction. Rate of enzyme mediated reactions Main article: Rate of enzyme mediated reactions Enzymes can increase reaction rate ...

Dendrite

... neurons. This backpropagating action potential is mediated by the activation of voltage-gated ion channels and can interact with synaptic input to alter the synaptic activity. The structure and branching of a neuron's dendrites strongly influences how it integrates the input from many others, particularly t...

Active transport

Active transport is the mediated transport of biochemicals , and other atomic / molecular substances, across membranes . Unlike passive transport , this process requires chemical energy . In this form of transport, molecules move against either an electrical or concentr...