What is colloids and its properties?
What is colloids and its properties?
Answer: Colloid: A colloid is a heterogeneous mixture whose particles are not as small as solution but they are so small that cannot be seen by naked eye. When a beam of light is passed through a colloid then the path of the light becomes visible. For example milk, smoke etc.
What are the characteristics of colloid?
Colloidal characteristics
- It must be heterogeneous, i.e., consist of dissimilar constituents, for example silver and water.
- It must be multiphasic, i.e., solid/liquid, gas/liquid, etc.
- The particles must be insoluble in the solution or suspension.
What are the two components of colloid?
The components of a colloidal solution are the dispersed phase and the dispersion medium. The solute-like component or the dispersed particles in a colloid form the dispersed phase, and the component in which the dispersed phase is suspended is known as the dispersing medium.
Why colloid is important in our daily life?
A colloid is used as thickening agents inindustrial products such as lubricants, lotions, toothpaste,coatings, etc. In the manufacture of paints and inks,colloids are useful. In ball-point pens, the ink usedis gel (liquid-solid colloid).
Where is colloid found in the body?
They function in everybody cell, in the blood, and in all body fluids, especially the intercellular fluids, formerly known as “humours.” Therefore, increased understanding of colloids and their attendant phenomena, as well as the application of their operating principles, to enhance human health considerably is …
What hormone is stored in colloid?
Surrounded by a wall of epithelial follicle cells, the colloid is the center of thyroid hormone production, and that production is dependent on the hormones’ essential and unique component: iodine.
Is another name for the pituitary gland?
hypophysis
What is the purpose of the hormone thyroxine?
Thyroxine is the main hormone secreted into the bloodstream by the thyroid gland. It plays vital roles in digestion, heart and muscle function, brain development and maintenance of bones.
Where is T3 and T4 produced?
The thyroid gland, located in the anterior neck, consists of two types of cells: follicular cells, which produce T3 and T4, and parafollicular cells, which produce and secrete thyrocalcitonin (also called calcitonin).
How is T3 and T4 produced?
thyroxine (T4) and triiodothyronine (T3) are produced from thyroid follicular cells within the thyroid gland, a process regulated by the thyroid-stimulating hormone secreted by the anterior pituitary gland.
What is T3 and T4 levels?
A normal T3 level might be somewhere between 100 to 200 nanograms per deciliter (ng/dL), while a normal T4 level falls between 5.0 to 12.0 micrograms per deciliter (μg/dL). Free T4, which tests for the amount of T4 that is available in the body, should range between 0.8 to 1.8 nanograms per deciliter (ng/dL).
What is the main function of T3 and T4?
The thyroid gland releases triiodothyronine (T3) and thyroxine (T4). These hormones play an important role in regulation of your weight, energy levels, internal temperature, skin, hair, nail growth, and more.
What is the function of the pituitary gland?
Pituitary: The Master Gland The pituitary, a pea-sized gland at the base of the brain, produces a number of hormones. Each of these hormones affects a specific part of the body (a target organ or tissue). Because the pituitary controls the function of most other endocrine glands, it is often called the master gland.