FSN 101 Lecture Notes - Lecture 3: Endoplasmic Reticulum, Pylorus, Salivary Gland

• School: University of Maine
• Department: Food Science and Nutrition
• Course: FSN 101
• Professor: Lewis Perkins

Document Summary

Basic structure and functional component of life. Many different kinds of cells: specialized for specific functions. 8 important organelles: plasma membrane, cytoplasm, mitochondria, nucleus, endoplasmic reticulum, golgi complex, lysosomes, peroxisomes. Double layers of lipid, carbohydrate, and protein. Compartments and specialized structures that perform specific functions. Cytoplasm: fluid material within a cell: anaerobic (only produces energy for the cell) Smooth endoplasmic reticulum: fat synthesis rough endoplasmic reticulum: protein synthesis. Packaging site for protein (used in cytoplasm) Found in all cells except red blood cells. Dna sends information to other cells via rna. Mitochondria contain their own dna and reproduce without cell nucleus. 4 primary types of tissue: epithelial, connective, muscle, nervous. Fluid circulating systems: cardiovascular (blood) and lymphatic (outside the blood vessels) Nervous system: (brain, spinal cord, nerves: controls movement and intellectual functions) Immune system: (white blood cells, lymph glands, other body tissues) Carries nutrients and waste products- also some enzymes and hormones.