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What is the structure of Rhizopus?
- Consists of threadlike structures called hyphae.
- Tubular with no cross walls.
- Multinucleate, each nucleus is haploid.
- Large numbers of hyphae are called a mycelium
- Digest the substrate on which they grow
- Rhizoids provide extra surface area for absorption of the digested material.
- Stolons are hyphae which allow Rhizopus to spread sideways (runner).
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What do Rhizopus consist of?
Consists of threadlike structures called hyphae.
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What shape are Rhizopus?
Tubular with no cross walls
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What can be said about the Rhizopus in relation to nuclei?
Multinucleate, each nucleus is haploid.
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What are large numbers of hyphae called?
Large numbers of hyphae are called a mycelium.
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What do Rhizopus digest?
The Rhizopus digests the substrate on which the grow.
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What provides extra surface area of the Rhizopus?
Rhizoids provide extra surface area for absorption of the digested material.
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Why do rhizoids provide extra surface area?
Rhizoids provide extra surface area for the absorption of the digested material.
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What are stolons?
Stolons are hyphae which allow the Rhizopus to spread sideways. (runner).
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What does the sporangium do?
The sporangium produces spores.
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What does the columella do?
The columella feeds the spores.
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What is the lifecycle of the Rhizopus?(Asexual reproduction:4p).
- Sporangiophores grow up from the substrate.
- Within the sporangium, cells divide by mitosis to produce spores (haploid).
- Sporangium dries out in right conditions and opens releasing many spores.
- Each spore will grow into a new hypha and mycelium if it lands on a suitable substrate.
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In the lifecycle of the Rhizopus, what do the sporangiophores grow up from?
Sporangiophores grow up from the substrate.
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What happens within the sporangium during asexual reproduction?
Within the sporangium, cells divide by mitosis to produce spores.
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When does the sporangium dry out?
Sporangium dries out in tight conditions and opens, releasing many spores.
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What does the sporangium do in the right conditions?
The sporangium dries out in right conditions and opens, releasing many spores.
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What will each spore grow into if it lands on a suitable substrate?
Each spore will grow into a new hypha and mycelium if it lands on a suitable substrate.
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