The GAGS retain up to 100 times their weight in water. True False Question 17 (1 point) Describe the approximate Skin Composition

**Question 1:**<br /><br />True. Glycosaminoglycans (GAGs) are highly hydrophilic and can indeed retain up to 100 times their weight in water.<br /><br />**Question 2:**<br /><br />Skin is composed of three main layers:<br /><br />* **Epidermis:** The outermost layer, primarily composed of keratinocytes. It provides a waterproof barrier and creates our skin tone. The epidermis is further divided into strata (layers): stratum corneum, stratum lucidum (only in thick skin), stratum granulosum, stratum spinosum, and stratum basale.<br /><br />* **Dermis:** The middle layer, thicker than the epidermis, composed primarily of collagen and elastin fibers embedded in a gel-like substance. It contains blood vessels, nerves, hair follicles, and sweat glands. The dermis provides strength, elasticity, and sensation to the skin.<br /><br />* **Hypodermis (Subcutaneous Tissue):** The deepest layer, primarily composed of fat cells (adipocytes) and connective tissue. It acts as insulation, stores energy, and cushions the body.<br />