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BESC 204 Exam 2 with correct Answers (Graded A) $12.49   Add to cart

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BESC 204 Exam 2 with correct Answers (Graded A)

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BESC 204 Exam 2 with correct Answers

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  • August 26, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • BESC
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millyphilip
BESC 204 Exam 2 with correct Answers
Phytophthora infestans - Answer -the fungus that caused Late Blight of Potato

Direct germination - Answer -germination by hyphal growth

Indirect germination - Answer -germination by zoospore formation

Antheridium - Answer -"male" part of oomycete sexual reproduction

Plasmopora viticola - Answer -fungus that causes the disease Grape Downy Mildew

Obligate pathogen - Answer -The pathogen can only complete their development on a
living host.

Ex. Rusts

Obligate biotroph - Answer -pathogens that extract nutrients only from living plant
tissues and cannot grow apart from their hosts.

whiplash flagella - Answer -type of flagellum with no hair-like structures

tinsel flagella - Answer -type of flagellum with many hair-like structures attached

germ theory - Answer -the theory that all contagious diseases are caused by
microorganisms

peptidoglycan - Answer -main wall polymer of bacteria

penicillin - Answer -antibiotic produced naturally by certain blue molds

mode of action: it prevents the cross-linking of small peptide chains in peptidoglycan.

cephalosporin - Answer -one of several broad spectrum antibiotic substances obtained
from fungi and related to penicillin

similar mode of action as penicillin; it affects the peptidoglycan

, griseofulyin - Answer -fungistatic antibiotic, that is it will inhibit the fungal growth and
does not kill fungi; it is not fungicidal

effective against fungal infections of hair, nail, and sking

Mode of Action: inhibits microtubule dynamics

fusic acid - Answer -

cilofungin - Answer -a semi-synthetic antibiotic

developed to combat Candida albicans

cyclosporine - Answer -immuno-modulator (depresses active immune system)

helpful for diabetics to free them from insulin injections

prevents rejection from transplants

lovastatin - Answer -inhibits cholesterol synthesis by blocking the action of an Enzyme
HMG-CoA redcutase

secondary metabolite - Answer -products of metabolism that are not essential for
normal growth, development or reproduction of an organism.

mycotoxin - Answer -A secondary metabolite produced by fungus that is toxic to
humans and/or animals

turkey-x disease - Answer -the disease that caused 100,000 turkeys to die and
mycotoxins to be discovered.

aflatoxin - Answer -Aspergillus flavus

Primary site of action is the liver.

Commonly associated w/ liver cancer.

It was discovered when the Turkey-disease occurred and killed 100,000 turkeys in
Europe. They realized all of the turkey's had eaten the same peanut meal which the
fungus Aspergillus flavus was growing on.

Peanuts and corn are susceptible

zearelenone - Answer -Fusarium toxin

It mimics estrogen, causes malformation of female reproductive organs

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