BESC 204 Exam 2 Questions and Answers | Latest Version | 2024/2025 | Rated A+
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Course
BESC 204
Institution
BESC 204
BESC 204 Exam 2 Questions and
Answers | Latest Version | 2024/2025 |
Rated A+
What are fungi, and how do they differ from plants?
Fungi are a diverse group of eukaryotic organisms that are distinct from plants, lacking
chlorophyll and obtaining nutrients through absorption rather than phot...
BESC 204 Exam 2 Questions and
Answers | Latest Version | 2024/2025 |
Rated A+
What are fungi, and how do they differ from plants?
✔✔Fungi are a diverse group of eukaryotic organisms that are distinct from plants, lacking
chlorophyll and obtaining nutrients through absorption rather than photosynthesis.
What role do fungi play in ecosystems?
✔✔Fungi play essential roles in ecosystems as decomposers, breaking down organic matter and
recycling nutrients back into the soil, which supports plant growth.
How do fungi reproduce?
✔✔Fungi can reproduce both sexually and asexually through the formation of spores, which can
disperse and grow into new fungal organisms.
What are mycorrhizae, and why are they important?
✔✔Mycorrhizae are symbiotic associations between fungi and plant roots that enhance nutrient
and water absorption for the plant while providing carbohydrates to the fungus.
1
,What is the structure of a typical fungus?
✔✔A typical fungus consists of a network of hyphae, which are filamentous structures that form
a mycelium, and often produces reproductive structures like mushrooms.
How do fungi obtain their nutrients?
✔✔Fungi obtain nutrients through a process called absorption, secreting enzymes to break down
complex organic materials into simpler compounds that can be absorbed.
What is the significance of fungal spores?
✔✔Fungal spores are essential for reproduction and dispersal, allowing fungi to colonize new
environments and maintain their populations.
What are some common diseases caused by fungi?
✔✔Common diseases caused by fungi include athlete's foot, ringworm, and more serious
infections like candidiasis and aspergillosis in immunocompromised individuals.
How do fungi contribute to medicine?
✔✔Fungi contribute to medicine through the production of antibiotics, such as penicillin, and
other bioactive compounds that can be used in pharmaceuticals.
2
,What is lichen, and what is its ecological significance?
✔✔Lichen is a symbiotic association between a fungus and an alga or cyanobacterium, playing a
vital role in ecosystems by serving as indicators of environmental health and contributing to soil
formation.
What are the differences between molds, yeasts, and mushrooms?
✔✔Molds are multicellular fungi that grow as filaments, yeasts are unicellular fungi that
reproduce by budding, and mushrooms are the fruiting bodies of certain fungi, typically formed
for reproduction.
How do fungi participate in nutrient cycling?
✔✔Fungi break down complex organic materials, recycling nutrients such as carbon, nitrogen,
and phosphorus back into the ecosystem, which supports plant growth.
What are some uses of fungi in food production?
✔✔Fungi are used in food production to make products like bread (yeast), cheese (fungal
rennet), and fermented foods (like soy sauce and miso).
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, How do fungi respond to environmental changes?
✔✔Fungi can respond to environmental changes by altering their growth patterns, spore
production, and metabolic activities to adapt to new conditions.
What is the role of fungi in soil health?
✔✔Fungi contribute to soil health by improving soil structure, enhancing nutrient availability,
and forming beneficial relationships with plant roots.
What are pathogenic fungi, and how do they affect humans?
✔✔Pathogenic fungi can infect humans, causing diseases that range from mild skin infections to
severe systemic illnesses, particularly in individuals with weakened immune systems.
How do fungi impact agriculture?
✔✔Fungi can both positively and negatively impact agriculture; beneficial fungi enhance plant
growth, while pathogenic fungi can cause crop diseases and reduce yields.
What is the fungal cell wall composed of?
✔✔The fungal cell wall is primarily composed of chitin, a polysaccharide that provides
structural support and protection to the fungal cell.
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