BIO 1002 Exam 2 Pomarico LSU Questions and Answers with Complete Solutions UPDATED!!!.

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BIO 1002 Exam 2 Pomarico LSU Questions and Answers
with Complete Solutions UPDATED!!!



Structural elements in Kingdom Fungi - ANSWER 1. Mycelium
2. Hyphae
3. Septa
4. Chitin
5. Spores


Mycelium - ANSWER -The feeding network of a fungus.
-Composed of a woven mesh of hyphae


Hyphae - ANSWER -The threadlike filaments of a fungus.
-Have a tubular cell wall that contains chitin surrounding a
plasma membrane and cytoplasm


Chitin - ANSWER A structural polysaccharide of modified sugars


Coenocytic Fungi - ANSWER Are no separate cells and and many
nuclei are in a common cytoplasm

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Dikaryotic Fungi - ANSWER Nuclei are partitioned into 2s by
septa (di-2)


Septa - ANSWER Structures that partially separate the
cytoplasm inside the hyphae


The general life cycle of fungi includes the production of
____________. - ANSWER spores


Spores - ANSWER -Haploid cells
-Grow directly into hyphae


How many fungal species are identified - ANSWER Over 100,000


5 major divisions of fungi - ANSWER 1. Chytrids
2. Zygote fungi
3. Mycorrhizae fungi
4. Club fungi
5. Sac fungi

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Chytrids - ANSWER -Aquatic life cycle
-No septa present
-Characterized by swimming flagellated spores and flagellated
gametes
-Some species are parasitic to amphibians


Zygote fungi - ANSWER -Zygospore
-Usually asexual reproduction, involving haploid spores that
grow into sporangia
-No septa
-ex: Black bread mold and dung fungus


Mycorrhizae fungi - ANSWER -Live in intimate contact with the
roots of plants
-No septa
-Hyphae surround and penetrate root cells
-Interaction forms a beneficial relationship called a mycorrhiza