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The factors responsible for the rapid spreading of bread mould on slices of bread are:
(i) Presence of large number of spores in air
(ii) Presence of large number of thread-like branches hyphae
(iii) Presence of moisture and nutrients
(iv) Formation of round shaped sporangia
(i) Presence of large number of spores in air
(ii) Presence of large number of thread-like branches hyphae
(iii) Presence of moisture and nutrients
(iv) Formation of round shaped sporangia
- a)(i) and (ii)
- b)(i) and (iii)
- c)(ii) and (iv)
- d)(iii) and (iv)
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
The factors responsible for the rapid spreading of bread mould on slic...
Factors responsible for the rapid spreading of bread mould on slices of bread are:
(i) Presence of large number of spores in air:
- Bread mould, also known as Rhizopus, produces a large number of spores that are microscopic and lightweight.
- These spores are easily dispersed in the air and can travel over long distances.
- When they land on a suitable surface, such as a slice of bread, they can germinate and grow into new mould colonies.
(ii) Presence of large number of thread-like branches hyphae:
- The bread mould consists of thread-like branches called hyphae.
- These hyphae grow rapidly and spread across the surface of the bread.
- They secrete enzymes that break down the bread's complex carbohydrates into simpler forms that can be absorbed as nutrients by the mould.
(iii) Presence of moisture and nutrients:
- Bread provides an ideal environment for mould growth, as it contains moisture and nutrients.
- Moisture can come from various sources such as water droplets, high humidity, or even the bread itself if it is not stored properly.
- Nutrients in bread include carbohydrates, proteins, and fats, which can be utilized by the mould for its growth and reproduction.
(iv) Formation of round-shaped sporangia:
- As the bread mould grows and spreads, it forms round-shaped structures called sporangia.
- These sporangia contain numerous spores that can be released into the air, further contributing to the spread of the mould.
- The sporangia can burst open, releasing the spores, which can then be carried by air currents to new locations, including other slices of bread.
Therefore, the correct answer is option 'B' (i) and (iii) because the presence of a large number of spores in the air and the presence of moisture and nutrients are the key factors responsible for the rapid spreading of bread mould on slices of bread.
(i) Presence of large number of spores in air:
- Bread mould, also known as Rhizopus, produces a large number of spores that are microscopic and lightweight.
- These spores are easily dispersed in the air and can travel over long distances.
- When they land on a suitable surface, such as a slice of bread, they can germinate and grow into new mould colonies.
(ii) Presence of large number of thread-like branches hyphae:
- The bread mould consists of thread-like branches called hyphae.
- These hyphae grow rapidly and spread across the surface of the bread.
- They secrete enzymes that break down the bread's complex carbohydrates into simpler forms that can be absorbed as nutrients by the mould.
(iii) Presence of moisture and nutrients:
- Bread provides an ideal environment for mould growth, as it contains moisture and nutrients.
- Moisture can come from various sources such as water droplets, high humidity, or even the bread itself if it is not stored properly.
- Nutrients in bread include carbohydrates, proteins, and fats, which can be utilized by the mould for its growth and reproduction.
(iv) Formation of round-shaped sporangia:
- As the bread mould grows and spreads, it forms round-shaped structures called sporangia.
- These sporangia contain numerous spores that can be released into the air, further contributing to the spread of the mould.
- The sporangia can burst open, releasing the spores, which can then be carried by air currents to new locations, including other slices of bread.
Therefore, the correct answer is option 'B' (i) and (iii) because the presence of a large number of spores in the air and the presence of moisture and nutrients are the key factors responsible for the rapid spreading of bread mould on slices of bread.
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The factors responsible for the rapid spreading of bread mould on slic...
The factors responsible for the rapid spreading of bread mould on slices of bread are the presence of a large number of spores in the air and the presence of moisture and nutrients in bread that act as food for the fungi.
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The factors responsible for the rapid spreading of bread mould on slices of bread are:(i) Presence of large number of spores in air(ii) Presence of large number of thread-like branches hyphae(iii) Presence of moisture and nutrients(iv) Formation of round shaped sporangiaa)(i) and (ii)b)(i) and (iii)c)(ii) and (iv)d)(iii) and (iv)Correct answer is option 'B'. Can you explain this answer? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about The factors responsible for the rapid spreading of bread mould on slices of bread are:(i) Presence of large number of spores in air(ii) Presence of large number of thread-like branches hyphae(iii) Presence of moisture and nutrients(iv) Formation of round shaped sporangiaa)(i) and (ii)b)(i) and (iii)c)(ii) and (iv)d)(iii) and (iv)Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The factors responsible for the rapid spreading of bread mould on slices of bread are:(i) Presence of large number of spores in air(ii) Presence of large number of thread-like branches hyphae(iii) Presence of moisture and nutrients(iv) Formation of round shaped sporangiaa)(i) and (ii)b)(i) and (iii)c)(ii) and (iv)d)(iii) and (iv)Correct answer is option 'B'. Can you explain this answer?.
The factors responsible for the rapid spreading of bread mould on slices of bread are:(i) Presence of large number of spores in air(ii) Presence of large number of thread-like branches hyphae(iii) Presence of moisture and nutrients(iv) Formation of round shaped sporangiaa)(i) and (ii)b)(i) and (iii)c)(ii) and (iv)d)(iii) and (iv)Correct answer is option 'B'. Can you explain this answer? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about The factors responsible for the rapid spreading of bread mould on slices of bread are:(i) Presence of large number of spores in air(ii) Presence of large number of thread-like branches hyphae(iii) Presence of moisture and nutrients(iv) Formation of round shaped sporangiaa)(i) and (ii)b)(i) and (iii)c)(ii) and (iv)d)(iii) and (iv)Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The factors responsible for the rapid spreading of bread mould on slices of bread are:(i) Presence of large number of spores in air(ii) Presence of large number of thread-like branches hyphae(iii) Presence of moisture and nutrients(iv) Formation of round shaped sporangiaa)(i) and (ii)b)(i) and (iii)c)(ii) and (iv)d)(iii) and (iv)Correct answer is option 'B'. Can you explain this answer?.
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