Q14 of 58 Page 65

Factors responsible for the rapid spread of bread mould on slices of bread are

1. Large number of spores


2. Availability of moisture and nutrients in bread


3. Presence of tubular branched hyphae


4. Formation of round shaped sporangia

The factors responsible for the rapid growth of bread mould on slices of bread are presence of large number of spores in air as well as presence of moisture and nutrients on the slice of bread.

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In Rhizopus, tubular thread-like structures bearing sporangia at their tips are called

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Which of the following statements are true for flowers?

1. Flowers are always bisexual


2. They are the sexual reproductive organs


3. They are produced in all groups of plants


4. After fertilisation they give rise to fruits