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Digestion of protein starts in the stomach and does not occur in the buccal cavity (mouth). Acidic environment (low pH) due to HCL (hydrochloric acid) in the stomach allow for pepsinogen to be converted i...

The cell cycle is composed of 3 main stages:

1) Interphase

During the interphase stage of the cell cycle, the cell grows and organelles such as mi...

Muscles require more energy during exercise. Additional oxygen and glucose are needed to release the energy. Blood flow increases to supply these to muscles faster.
Respiration also increases to allo...

At rest K+ that is going out of cell clamps the membrane potential negative (e.g. -70 mV)An external factor (e.g. synaptic activity) causes the membrane to depolarise slightly. If the voltage reaches thre...

An organism that produces its own food