If you leave a piece of moist bread covered under a small bell jar at a warm place, mould grows on it in a few days. Answer the following with reference to this observation:

(a) What would happen if the bread was not covered by the bell-jar?

(b) What would happen if moist bread was placed in a refrigerator?

(c) What appears first on the bread – the mycelia or the spores?

Draw a neat diagram of the unicellular fungus 'Yeast' and label its six important parts.

The figure shown alongside represents an organism. Study the figure and answer the following questions.

(a) Identify the organism and write its common as well as scientific name.

(b) Label the parts shown as 1, 2 and 3.

(c) Name two suitable habitats of the organism shown.

(d) Mention its main mode of reproduction.

(e) What specific kinds of digestion occur in it ?

These days mushroom cultivation has become a common indoor business. Shalini has grown white button mushrooms which are shown below in the diagram.

(a) Write the scientific name of the mushrooms shown above.

(b) Name two vitamins which are abundantly found in this mushroom.

(c) What do you understand by 'spawning' (second step in mushroom cultivation) ?