Exam (elaborations)
BESC 204 TAMU EXAM 1 QUESTIONS AND ANSWERS
- Course
- Institution
BESC 204 TAMU EXAM 1 QUESTIONS AND ANSWERS
[Show more]
Content preview
BESC 204 TAMU EXAM 1 QUESTIONSAND ANSWERS
fungi - Answer --own kingdom
-3 domains (archea,eukarya,eucaryota)
-eukaryotic
-heterotrophic
-no chlorophyll
-obtain nutrients by absorption
-reproduce by spores
-exhibit a pronounced polarization of growing cells
hyphae - Answer -each of the branching filaments that make up the mycelium
-elongate by tip growth
mycelium - Answer -vegetative part of a fungus, consisting of a network of fine white
filaments
-ex: fairy ring, ringworm etc.
-biggest one: 2200 acres;650tons;2400yearsold
septa - Answer --"cell compartmentalization"
-make fungi fundamentally different from other multi-cellular organisms
cell compartment - Answer --increases surface area of the cell membranes
-necessary for obtaining nutrients and excreting waste
-means of increasing membrane without increasing the size of the cell
-exceptions:yeast-single celled organsim
Chitin - Answer --in cell walls
-structural polymer of glucose
-plants = cellulose
-animals=no cell wall
Woronin Bodies - Answer --dense-core organelles that are found exclusively in
filamentous fungi
-seal septal pore in response to wounding (scab)
-consist of a membrane-bound protein matrix comprised of the HEX protein
, -formed from peroxisomes
Mycology - Answer -the study of fungi
mycologist - Answer -a scientist who studies fungi
morphological species concept - Answer --things that look the same are of the same
species
-must fungal species defined this way (particularly for species with no known sexual
reproduction)
Biological species concept - Answer --requires 2 individuals to be able to mate AND
produce viable offspring
-difficult with fungi b/c mating either doesn't work in lab or can be forced when it
wouldn't happen in nature
Phylogentic species concept - Answer --genealogical relationships
-genetic mapping and similarities
Zoospore - Answer --spore capable of swimming by means of a flagellum
-found in chytridiomycota
flagellum - Answer -tail-like structure that propels zoospore
whiplash flagellum - Answer -flagellum without hair on its surface
thallus - Answer -(hyphae>mycelium>thallus)
-simple structure that lacks specialized tissues typical of higher plants (stems, leaves,
etc.)
-coenocytic
coenocytic - Answer -mass of protoplasm containing many nuclei and enclosed by cell
wall
(no crosswalls)
Asexual (list spore types) - Answer -spores formed by the separation and thickening of
hyphal cells
-product of mitosis
-spore types:
*zoospores
*sporangiospores
*chlamydiospores
*conidia
Sexual (list steps) - Answer --products of meiosis
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller millyphilip. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79223 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now