What is meant by bulk flow?

What is meant by bulk flow?

Mass flow or bulk flow is the movement of substances in bulk or in masses down a pressure gradient (in plants a pressure gradient is seen due to differences in solute concentration) or temperature gradient. E.g: blood circulation and the transport of water in vascular plants.

What is bulk flow simple?

Bulk flow is a process used by small lipid-insoluble proteins to cross the capillary wall. Capillary structure plays a large role in the rate of bulk flow, with continuous capillaries limiting flow and discontinuous capillaries facilitating the greatest amount of flow.

What is bulk flow of water?

Mass flow, also known as “mass transfer” and “bulk flow”, is the movement of fluids down a pressure or temperature gradient, particularly in the life sciences. Mass flow is not to be confused with diffusion which depends on concentration gradients within a medium rather than pressure gradients of the medium itself.

What is bulk flow and diffusion?

bulk flow. “Bulk flow” is the movement/flow of an entire body due to a pressure gradient (for example, water coming out of a tap). “Diffusion” is the gradual movement/dispersion of concentration within a body, due to a concentration gradient, with no net movement of matter.

What is bulk flow in physiology?

What is bulk flow in respiration?

When gases move from an area of high pressure to an area of low pressure, this is known as ‘bulk flow’. During a breathing cycle, air moves in and out of the lungs by bulk flow. The respiratory muscles are responsible for the changes in the shape and volume of the chest cavity that cause the air movements in breathing.

What are examples of bulk flow?

Hint:Circulation of blood, water transport in xylem vessels and plant phloem tubes are the examples of mass or bulk flow systems.

What is bulk flow Why is it important?

What causes bulk flow?

What Animals use bulk flow?

Animals rely on bulk flow (or other active mechanism) to obtain oxygen and release carbon dioxide (hence breathing, fish sweep water across gills, frog swallowing) Plants rely on diffusion to obtain carbon dioxide and release oxygen (hence leaves are thin)

What is the purpose of bulk flow in respiration?

The bulk flow in respiration is mainly defined as the movement of gases (oxygen and carbon dioxide) from an area of high pressure to an area of low pressure. This mechanism in breathing is mainly responsible for the changes in the shape and volume of the chest cavity, which is controlled by the respiratory muscles.

How does bulk flow and diffusion differ?

The key difference between bulk flow and diffusion is that bulk flow is the movement of a fluid or a mass due to a pressure gradient while diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration along the concentration gradient. Bulk flow and diffusion are two methods by which molecules move from one place to another place.

What is bulk fluid?

Bulk fluid refers to the whole volume of water: not divided into parts or separate units. In this case, the bulk fluids are all of the water that interplays with the eddies.

What is bulk diffusion?

Lattice diffusion (also called bulk or volume diffusion) refers to atomic diffusion within a crystalline lattice. Diffusion within the crystal lattice occurs by either interstitial or substitutional mechanisms and is referred to as lattice diffusion.

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