Difference Between Secretion and Excretion: Secretion and excretion play vital roles in material movement within the body, essential for maintaining its balance. The main distinction is that secretion transfers materials within the body, whereas excretion eliminates waste that serves no purpose.
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Secretion is an active process, while excretion is passive. Tears, sweat, carbon dioxide, urine, and feces are all examples of excreted substances, whereas secretions include saliva, hormones, and enzymes. Read the article below to learn more about the difference between secretion and excretion.
Difference Between Secretion and Excretion | ||
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Characteristic | Secretion | Excretion |
Definition | The process of glands or cells producing and releasing beneficial substances within the body. | The process of the body eliminating metabolic waste products such as carbon dioxide and urea. |
Active/Passive | Active | Passive |
Organs | Salivary glands, digestive glands, endocrine glands, pancreas, liver, gallbladder | Rectum, lungs, tear ducts, skin |
Products | Hormones, gastric juices, saliva, enzymes | Carbon dioxide, sweat, tears |
Role | Essential roles in metabolism and physiological processes | Rids the body of waste products, maintains internal balance and health. |