BIOL235 Midterm #1 Graded A

1. The study of bodily structures and the relationship between them - Anatomy 2. The study of bodily function and how the body parts work - Physiology 3. chemical, cellular, tissue, organ, organ system, organism - Levels of organization 4. Smallest level or organization. Made up of atoms (smallest units of matter, participates in chemical reactions) and molecules (2+ atoms joined together). Certain atoms (C, H, O, N, P, Ca, S) are essential for maintaining life. (Letters) - Chemical level of organization 5. Molecules form cells- the basic structural and functional units of an organism. (Words) - Cellular level of organization 6. Groups of cells and the materials around them that work together to perform a certain function. (Sentences) - Tissue level of organization 7. Different tissues joined together to form an organ with a specific function and recognizable shape. (Paragraph) - Organ level of organization 8. Consists of related organs with a common function. (Chapter) - System level of organization 9. Largest living system functioning together to constitute the total organism, made up of multiple systems that work to maintain homeostasis. (The book) - Organism level of organization A) skin, hair, fingernails, sweat glands and oil glands B) protects body, regulates temperature, eliminates wastes, vitamin D synthesis, detects sensations, provides insulation - Integumentary system A) Organs of digestive canal (gastrointestinal tract), a long tube that includes the mouth, pharynx (throat), esophagus (food tube), stomach, small and large intestines, and anus; also includes accessory organs that assist in digestive processes, such as salivary glands, liver, gallbladder, and pancreas. B) achieves physical and chemical breakdown of food, absorbs nutrients and eliminates solid wastes - Digestive system