This practical investigates respiration rate by measuring the distance a colored liquid moves in a sealed tube due to oxygen consumption or CO₂ production by organisms, using soda lime to absorb CO₂.
Prática Central: Como você pode investigar a taxa de respiração em organismos vivos? 1. Adicionar grânulos de soda lime a um tubo de ensaio. 2. Colocar uma bola de algodão sobre os grânulos. 3. Colocar alguns organismos vivos (vermes) em cima. 4. Conectar um pequeno tubo com líquido colorido ao tubo de ensaio. 5. Medir o quão longe o líquido se move como resultado da respiração num determinado tempo.
| Front | Core Practical: How can you investigate the rate of respiration in living organisms? |
|---|---|
| Back | 1. Add soda lime granules to a test tube. 2. Put a ball of cotton wool on top of the granules 3. Put some living organisms (mealworms) on top 4. Connect a small tube with coloured liquid to the test tube 5. Measure how far the liquid moves as a result of respiration in a given time |
Tags: biology_paper_2
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