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protein in nutrients transport background photo

Protein in nutrients transport

Hemoglobin and albumin in the blood also play a role in substance transport. Albumin chemically binds to fatty acids, hormones, minerals, vitamins, and drugs and transports these substances throughout the circulatory system. Millions of hemoglobin molecules in every red blood cell bind oxygen in the lungs and transport oxygen to all the tissues in the body.

protein in nutrients
oxygen in protein

Many transport proteins are located in the cell membrane, helping get the required nutrients and molecules into the cell, as a cell's membrane is usually not permeable to large polar molecules. Some proteins are channels that allow particular molecules to move in and out of cells.

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