Biology 251 Exam 1 Question and answers latest 2024 100% verified.

Primary tissues - Answer- Composed of cells of a single type and extracellular material Nervous tissue - Answer- Cells specialized for initiation and transmission of electrical impulses (brain, spinal cord, nerves) Muscle tissue - Answer- Cells specialized for contraction and force generation Three types of muscle tissue - Answer- Skeletal, cardiac and smooth Epithelial tissue - Answer- Cells specialized in exchange of material with environment Two general types of epithelial structures - Answer- Sheets (skin, digestive tract lining), secretory glands (sweat glands) Connective tissue - Answer- Cells that connect, support and anchor body parts Organs - Answer- Composed of two or more primary tissues organized to perform a specific function Body Systems - Answer- Collection of organs that perform related functions and interact to accomplish a common activity essential to survival of bdy Two fluid compartments within body - Answer- Intracellular fluid and extracellular fluid Intracellular fluid - Answer- Fluid within cells Extracellular fluid - Answer- Fluid outside cells Further compartmentalized into 1. Plasma (liquid portion of blood) 2. Interstitial fluid (fluid that surrounds cells) 3. Boundary between the 2 is capillary walks 4. Water ad small molecules can move freely across capillaries What is the boundary between ECF and ICF? - Answer- Cell membranes Homeostasis - Answer- Keeping the internal environment constant to maintain cell function Factors that must be homeostatically maintained - Answer- ECF volume, composition and