2. Complete Activity 1.2 (Page 6). Take a piece of bread and moisten it with water. Leave it in a moist warm place for 2–3 days or until fluffy patches appear on them (Fig. 1.8). What is the colour of these patches? Observe the patches under a microscope or a magnifying glass. Write down your observations in the notebook.
Answer: The above activity can be carried out as follows:
Aim: To moisten bread, leave it in a moist warm place for 2–3 days and observe what happens.
Materials Required: Piece of bread, water, microscope or a magnifying glass.
Procedure:
Moisten the piece of bread with the water and leave it in a moist warm place for 2-3 days. Observe what happens.
Observations:
You will observe that after 2-3 days white, green or brown fluffy patches appear on bread. When viewed under a microscope many small spherical structures are seen.
Conclusions: The white, green or brown fluffy patches are mould which are a type of fungi. The small spherical structures seen under the microscope are the fungal spores via which fungi reproduce. Fungal spores germinate in moist conditions.
“Take a piece of bread and moisten it with water. Leave it in a moist warm place for 2–3 days or until fluffy patches appear on them (Fig. 1.8). What is the colour of these patches? Observe the patches under a microscope or a magnifying glass. Write down your observations in the notebook.” – Solved.
Related Links:
Solution to Extended Learning Problem 1
Solution to Extended Learning Problem 2
Solution to Extended Learning Problem 3
Solution to Activity 1.1
