BIOA01H3 Study Guide - Midterm Guide: Facilitated Diffusion, Bronchus, Intercostal Muscle

• School: UTSC
• Department: Biological Sciences
• Course: BIOA01H3
• Professor: Mark Fitzpatrick

Document Summary

Biological systems: biological systems: group of organs work together to perform a function, organ system: group of 2 or more tissues working to do a task, tissues: specialized cells doing a common function, cells: basic unit of life. Respiratory: gas exchange between organism and the environment. Circulatory: transporting nutrients and other material to cells of the organism. Digestive: breaks down food into smaller molecules so that it can be absorbed. Glucose + 6o2 -> 6co2 + 6h2o + 36 atp (energy for life) Exchange methods: simple diffusion: short distances, concentration + -> low. Skin: capillaries under skin does gas exchange (worm) Nasal passages: thin bone turbinate cleans; mucus, moistens air. Epiglottis: flap: prevents food from falling into trachea. Larynx: two fold structure, holds voice box, large space, muscles contract closing gap between chords, causing different vibrations hence sound. Trachea: tube supported by half circle cartilage, air transported. Bronchioles: network of finer tubes; bronchus to alveoli, moistens with mucus.