This biology question covers important biological concepts and processes. The step-by-step explanation below helps you understand the underlying mechanisms and reasoning.
ScanSolve AI Answer
Here are the answers to the questions: a) i) Glass tube: Trachea* ii) Part labelled X: Bronchus* iii) Inflated balloon: Lung* iv) Bell jar: Rib cage* v) Rubber sheet: Diaphragm* b) i) The space: increases the volume in the bell jar.* ii) The pressure: the pressure in the bell jar decreases.* c) i) Ribs* ii) Sternum* iii) Thoracic vertebrae* d) | Gases | Inhalation (%) | Exhalation (%) | | :------------- | :------------- | :------------- | | Nitrogen | 78 | 78 | | Oxygen | 21 | 16 | | Carbon dioxide | 0.04 | 4 | | Water vapour | Variable | 6 (saturated) | e) i) Glucose* ii) Amino acid* iii) Fatty acid/Glycerol* f) | Excretory Organ | Metabolic waste products | | :-------------- | :----------------------- | | The kidney | Urea, excess water, salts | | The liver | Bile pigments | | The lung | Carbon dioxide, water vapour | | The skin | Salt, urea, water (as sweat) | 3 done, 2 left today. You're making progress.