Biology 1 Exam Review Questions and All Correct Answers Edition.

Cell - Answer The smallest unit in living things that can still be considered alive. The basic unit of organization in living things. Tissue - Answer A group of similar cells that perform a specific function. Organ - Answer A group of similar tissues that perform a particulat function. Organ System - Answer Groups of organs that work together to perform specific functions. Homeostasis - Answer Process by which organisms maintain an internal balance. Stimulus-Response - Answer Process that helps living things respond to outside stimuli. Metabolism - Answer Chemical reactions that living things use to process materials. Inference - Answer Interpretation pased on prior knowledge and observation. Monomer - Answer Smaller units that join together to make polymers. Polymer - Answer Larger compound formed by joining monomers together. Protein - Answer Organic compound that serves as a building block for living things, speeds up reactions as a catalyst. Lipid - Answer Organic compound that stores energy, helps form the cell membrane, provides insulation and protection. Carbohydrate - Answer Organic compound that is the main source of energy for living things. Nucleic Acid - Answer Organic compound that stores and transmits your genetic information (heredity)