Diffusion refers to the net movement of molecules from higher to lower concentration. Diffusion may be a simple diffusion or . A simple diffusion is one in which that occurs unassisted. Facilitated diffusion in contrast is an assisted diffusion in a way that it requires a carrier molecule. For instance, polar molecules diffuse across a cell membrane through carrier molecules in the cell membrane.
Symptoms of Thanatophobia. The mere mention of death or images or thoughts thereof can trigger a crippling anxiety in the patient. Physical Symptoms: Dizziness, dry mouth, sweating, palpitations, nausea, stomach pain, trembling, sensation of choking, chest pain or discomfort, hot or cold flashes, numbness and tingling sensations.
Anxiety produces physical symptoms such as: rapid or irregular heartbeat (palpitations) stomach problems (gnawing feeling, nausea, butterflies, diarrhea, irritated bowel syndrome) sweating, or feeling cold and clammy headaches, lightheadedness or dizziness body tension or aches fatigue or shortness of breath shaking, trembling or twitching ...