Photo AI
Plants, animals and human activity all have important roles in conserving the living environment on the planet - Junior Cycle Science - Question a - 2007
Question a
Plants, animals and human activity all have important roles in conserving the living environment on the planet. (a) (i) Complete the following word equation for aer... show full transcript
Worked Solution & Example Answer:Plants, animals and human activity all have important roles in conserving the living environment on the planet - Junior Cycle Science - Question a - 2007
Step 1
Complete the following word equation for aerobic respiration.
Answer
Glucose (Food) + Oxygen → Energy + Carbon Dioxide + Water
In this word equation for aerobic respiration, glucose is broken down in the presence of oxygen to release energy. The products of this process are carbon dioxide and water.
Step 2
State how you would show the presence of one of the products of aerobic respiration by means of a chemical test.
Answer
To test for carbon dioxide (CO₂), you can use lime water. When carbon dioxide is bubbled through lime water, it turns milky due to the formation of calcium carbonate.
Alternatively, you can test for the presence of water using cobalt chloride. When cobalt chloride is mixed with water, it turns from blue to pink.