Question

Rajesh observed a patch of greenish black powdery mass on a stale piece of bread.
a. Name the organism responsible for this and its specific mode of asexual reproduction.
b. Name its vegetative and reproductive parts.​

Answer 1

Answer:

(a) The greenish black powdery mass on a stale piece of bread is due to bread mould Rhizopus (½ mark) which reproduces by spore formation

(b) Hyphae or thread like structures are the vegetative part and tiny blob-like structures or sporangia are the reproductive parts (½ Mark).

Explanation:

MARK ME BRAINLIEST

Answer 2

The organism responsible for formation of greenish - black powdery mass on a stale piece of bread is Rhizopus.

Rhizopus belongs to the Phycomycetes class of fungi. So, the next thing we want to discuss here is the mode of asexual reproduction in this organism.

What is the specific mode of asexual reproduction in Phycomycetes?

• The asexual reproduction is by spore formation.
• It takes place by either zoospores (motile) or aplanospores (non- motile).
• Both types of spores are endogenously produced in the sporangium.

What is the vegetative part of Phycomycetes?

• Hyphae - It is the long, slender thread-like structure that forms the fungal body. The network of hyphae is known as mycellium.

What is the reproductive part of Phycomycetes?

• Sporangia - It is a bulb like structure in which the spores are produced endogenously through mitosis.