Biology - B3 Organisation and the Digestive System General Overview

Biology - B3 Organisation and the Digestive System General Overview

1. Cells, Tissues, Organs, and Systems

   • Tissues
     • A group of cells with similar structure and function working together
       • Muscular Tissue
         • Can contract to bring about movement
       • Glandular Tissue
         • Contains secretory cells that can produce and release substances such as enzymes and hormones
       • Epithelial Tissue
         • Covers the outside of the body and internal organs
   • Organs
     • A collection of tissues working together to perform a specific function
       • Stomach
         • Contains muscular tissue to churn food and digestive juices together
         • Glandular tissue to produce digestive juice
         • Epithelial tissue covering the inside and the outside
       • Pancreas
         • Contains two different types of tissue to make hormones that control blood sugar and enzymes that digest food
   • Organ Systems
     • Groups of organs that all work together to perform specific functions
       • Digestive System
       • Circulatory System
         • Have adaptations that make them effective as exchange systems
       • Gas Exchange System