Question

reproduction in fungi class 11 and explain full topic by ncert line by line ​

Answer 1

Answer:

• The majority of fungi can reproduce both asexually and sexually. This allows them to adjust to conditions in the environment. They can spread quickly through asexual reproduction when conditions are stable.
• Despite their gelatinous appearance, jelly fungi (Tremella mesenterica; also known as witch's butter) contain longitudinally septate basidia, which are formed from binucleate mycelia. Fungi usually reproduce both sexually and asexually. The asexual cycle produces mitospores, and the sexual cycle produces meiospores.

Answer 2

Answer:

KINGDOM FUNGI

Fungi are heterotrophic organisms.

Fungi are filamentous, with the exception of unicellular yeasts.

Fungi consist of long, slender thread-like structures called

The network of hyphae is known as mycelium.

Some hyphae are continuous tubes filled with multinucleated cytoplasm, these are called coenocytic hyphae and others have septae or cross walls in their hyphae.

The cell walls of fungi are composed of chitin and polysaccharides.

Most fungi are heterotrophic and absorb soluble organic matter from dead substrates and hence are called

The fungi that depend on living plants and animals are called

Fungi can also live as symbionts –. Example- in association with algae as lichens and with roots of higher plants as

Class_11_Biology_Biological_Classification_Mycorrhiza

Fig. Mycorrhiza

Reproduction in fungi can take place

By vegetative means - fragmentation, fission and budding.

Asexual reproduction is by spores called conidia or sporangiospores or

Sexual reproduction is by oospores, ascospores and

The sexual cycle involves the following three steps

Fusion of protoplasms between two motile or non-motile gametes called

Fusion of two nuclei called

Meiosis in zygote resulting in haploid spores.

The fusion of two haploid cells immediately results in diploid cells (2n), but in some fungi such as ascomycetes and basidiomycetes, an intervening dikaryotic stage (n + n i.e. two nuclei per cell) occurs; such a condition is called a dikaryon and the phase is called dikaryophase of fungus.

Later, the parental nuclei fuse and the cells become diploid.