IBDP> CORE TOPICS > 6.4 GAS EXCHANGE
LESSON PLAN
DAY 1
6.4.U4: Air is carried to the lungs in the trachea and bronchi and then to the alveoli in bronchioles (Oxford Biology Course Companion page 314).
6.4.U2: Type I pneumocytes are extremely thin alveolar cells that are adapted to carry out gas exchange (Oxford Biology Course Companion page 313).
6.2.U3: Type II pneumocytes secrete a solution containing surfactant that creates a moist surface inside the alveoli to prevent the sides of the alveolus adhering to each other by reducing surface tension (Oxford Biology Course Companion page 313).
6.4.A2: Causes and consequences of lung cancer (Oxford Biology Course Companion page 316).
6.4.NOS: Obtain evidence for theories- epidemiological studies have contributed to our understanding of the causes of the lung cancer (Oxford Biology Course Companion page 316).
6.4.U2: Type I pneumocytes are extremely thin alveolar cells that are adapted to carry out gas exchange (Oxford Biology Course Companion page 313).
6.2.U3: Type II pneumocytes secrete a solution containing surfactant that creates a moist surface inside the alveoli to prevent the sides of the alveolus adhering to each other by reducing surface tension (Oxford Biology Course Companion page 313).
6.4.A2: Causes and consequences of lung cancer (Oxford Biology Course Companion page 316).
6.4.NOS: Obtain evidence for theories- epidemiological studies have contributed to our understanding of the causes of the lung cancer (Oxford Biology Course Companion page 316).
DAY 2
6.4.U1: Ventilation maintains concentration gradients of oxygen and carbon dioxide between air and alveoli and blood flowing in adjacent capillaries. (Oxford Biology Course Companion page 311).
6.4.U5: Muscle contraction cause the pressure changes inside the thorax that force air in and out of the lungs to ventilate them (Oxford Biology Course Companion page 314).
6.4.U6: Different muscles are required for inspiration and expiration because muscles only do work when they contract (Oxford Biology Course Companion page 315).
6.4.A1: External and internal intercostal muscles, and diaphragm and abdominal muscles as examples of antagonistic muscle action (Oxford Biology Course Companion page 315).
6.4.A3 Causes and consequences of emphysema (Oxford Biology Course Companion page 317).
6.4.U5: Muscle contraction cause the pressure changes inside the thorax that force air in and out of the lungs to ventilate them (Oxford Biology Course Companion page 314).
6.4.U6: Different muscles are required for inspiration and expiration because muscles only do work when they contract (Oxford Biology Course Companion page 315).
6.4.A1: External and internal intercostal muscles, and diaphragm and abdominal muscles as examples of antagonistic muscle action (Oxford Biology Course Companion page 315).
6.4.A3 Causes and consequences of emphysema (Oxford Biology Course Companion page 317).
ASSIGNMENT:
DAY 3- LAB
6.4.S1: Monitoring of ventilation in humans at rest and after mild and vigorous exercise (Practical 6) (Oxford Biology Course Companion page 312).