Exam (elaborations)
Microbiology Quiz 4 | Questions And Answers Latest {} A+ Graded | 100% Verified
- Course
- Institution
Microbiology Quiz 4 | Questions And Answers Latest {} A+ Graded | 100% Verified
[Show more]
Content preview
Microbiology Quiz 4 | Questions And Answers Latest {2024- 2025} A+ Graded | 100%Verified
describe the characteristics and roles of algae - - eukaryotes
- photosynthetic
- rigid cell walls (mostly cellulose)
- major producers of O2, consumers of CO2
why are algae important to human existence - they are the source of antimicrobials
describe the structure of macroscopic algae - - brown, green and red algae
- anchor by holdfast
describe the role of algae in paralytic shellfish poisoning - shellfish feed on Gonyaulax without harm and
accumulate neurotoxins in their tissue. humans consuming can suffer paralytic shellfish poisoning;
cooking doesn't destroy
list the characteristics of protozoans - - eat large #s of bacteria and algae
- single celled, no chloroplasts, cellulose or chitin walls
- classification based on method of locomotion
what disease is plasmodium a causative agent for - malaria
what disease is trypanosoma a causative agent for - human african trypanosomiasis (sleeping sickness)
what disease is entamoeba histolytica a causative agent for - amebiasis
List the kinds of organisms included in the fungi - yeasts, molds, mushrooms
list the characteristics of the four groups of true fungi and describe the roles - chytridiomycota (chytrids)
, zygomycota (bread molds)
ascomycota (yeasts)
basidiomycota (club fungi)
dimorphic fungi - can grow as single yeast cells or multicellular mycelia- disease in humans
what are the growth requirements of fungi - mostly terrestrial habitats; most prefer 20-35 deg C; most
AEROBIC , some yeasts are facultative anaerobes
describe reproduction in fungi - asexual spore- conidia
yeast may reproduce by mitosis/budding
how can fungi cause human disease - (rare cryptococcal meningitis)
1. allergic reaction- fungal spores (major cause of athsma)
2. mycoses- fungus grows on/in body (candida albicans and candidasis) coccidiodomycosis (valley fever)
3. toxins- aflatoxins (found in grain, peanuts; carcinogenic)
why are fungi of economic importance - - antimicrobial meds
- study of eukaryotic cells
- yeasts genetically engineered to produce important molecules including human insulin and hep B
vaccine
- saccharomyces cerevisilae (baker's yeast) in food production
- other species used in cheese making
- spoilers of food
- crop diseases impose billions of $
what are slime molds - protists
1. cellular- vegetative cell is single amoeba-like cell; when food runs out, cells aggregate into slug
2. plasmodial- large, multi-nucleated;
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 oneclass. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.48. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
83100 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now