NDLI: Osmosis, Osmotic Pressure and Hydrostatic Pressure

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Cardiovascular System

Introduction to Cardiovascular System

Composition of Blood

Types of Blood Vessels

Blood Pressure in Arteries, Veins and Capillaries

Compliance of Blood Vessels

Resistance of Blood Vessels and Volume Flow Rate

Structure of the Heart

Blood Flow in the Heart

Electrical Conduction in the Heart

Introduction to Electrocardiogram

Major Arteries of Circulation System

Osmosis, Osmotic Pressure and Hydrostatic Pressure

Exchange Across Capillaries

Recycling of Red Blood Cells

Blood Clotting Cascade

Blood Clotting Cascade (Part II)

Amplification of Blood Clotting

Respiratory System

Osmosis, Osmotic Pressure and Hydrostatic Pressure

Content Provider	AK Lectures
Description	Water always moves from a high osmotic potential to a low osmotic potential, in a similar way that a mass will move from a high gravitational potential to a low gravitational potential. We arbitrarily choose pure water to have an osmotic potential of zero. Anytime we add some type of solute into the pure water, we are decreasing its osmotic potential by making it more negative. Therefore, if we separate these two solutions by a semi-permeable membrane that only allows water to pass through, then water will naturally move from the high osmotic potential (pure water side) to the low osmotic potential (the water with the solute dissolved in it). Said another way, water tends to move from a low solute concentration (hypotonic environment) to a high solute concentration (hypertonic environment). This natural movement of water is called osmosis. Now if we put some sort of physical impermeable barrier between the two sides, such as our hand for instance, we will prevent the movement. This pressure that we must apply to prevent the process of osmosis from taking place (natural flow of water from low to high solute concentration) is called the osmotic pressure. On the other hand, hydrostatic pressure is the pressure that is created by the fluid on the walls of the conduit through which the fluid is moving.
Language	English
Access Restriction	Open
Subject Keyword	Biology move process walls instance mass sides water flow
Content Type	Video
Educational Role	Teacher Student
Educational Use	Self Learning Lecture Reading
Resource Type	Video Lecture
Education Level	Under Graduate
Subject	Diseases

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