10th Class Science Solved Paper - Science-2017 Outside Delhi Set-II

  • question_answer
    Describe reproduction by spores in Rhizopus.

    Answer:

    Rhizopus is a fungus that reproduces by spore formation. The fungal hyphae gives rise to a globular structure known as sporangium. The sporangium gives rise to several spores by repetitive division of its nucleus. Each nucleus gets surrounded by a part of cytoplasm and thus develops into a spore. These spore then inside the porangium. Once they are fully the sporangium bursts to release these spores in environment. Since the spores disperse through air they can land on various sites. These sites may favourable or unfavourable. During unfavourable conditions, these spores are protected by a tough coat. Once favourable conditions returns, they germinate and grow into new hyphae.
    Spore formation in Rhizopus
     


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