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VIBS 422 exam 2 Practice Questions and Answers 100% Pass Relevant early menopause chemicals: - ANSWER-Pesticides PCB Phthalates (DEHP) As population and plastics production has increased, sperm count has __________. - ANSWER- Decreased System of ducts in MRS - ANSWER-Epididymis Vas Deferens...

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  • November 11, 2024
  • 32
  • 2024/2025
  • Exam (elaborations)
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  • vibs 422 exam 2 practice questions and answers 100

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VIBS 422 exam 2 Practice Questions and

Answers 100% Pass


Relevant early menopause chemicals: - ANSWER✔✔-Pesticides




PCB




Phthalates (DEHP)


As population and plastics production has increased, sperm count has __________. - ANSWER✔✔-

Decreased


System of ducts in MRS - ANSWER✔✔-Epididymis




Vas Deferens




Ejaculatory Ducts




Urethra


Accessory sex glands - ANSWER✔✔-Seminal vescicles


Copyright ©Stuvia International BV 2010-2024 Page 1/32

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Prostate




Bulbouretheral glands


Ovary 2 relevant functions: - ANSWER✔✔-Produce eggs (ova)




Synthesize steroid hormones (estrogen and progesterone)


All female species have a ____ number of oocytes - ANSWER✔✔-Set


Major problem with reproductive system is _________. - ANSWER✔✔-Infertility


Primary infertility - ANSWER✔✔-Never achieved pregnancy=




Never conceived(F)/ never impregnated(M)


Secondary infertility - ANSWER✔✔-Inability to conceive after a previous pregnancy




Never conceived AGAIN(F)/ never impregnated AGAIN (M)


PCB Uses - ANSWER✔✔-Fluids, liquids, waxes




PLASTICIZER



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PBB Uses - ANSWER✔✔-Think electronics, solids




PLASTICIZER


Cl affect on PCB toxicity - ANSWER✔✔-More = more toxic




Position affects toxicity


_____ million kgs of PCBs in environment. - ANSWER✔✔-4.5


______________ are highly fat soluble - ANSWER✔✔-PCBs and PBBs


____________tons of PCBs and PBBs present in env. - ANSWER✔✔-370k


Environmental fate of PCBs and PBBs - ANSWER✔✔-Leaks, spills, improper disposal




highly VOLATILE


_____________ is far more effective n removing large concentrations of PCBs - ANSWER✔✔-Dredging


PCB sediment eaters - ANSWER✔✔-Mysis recta and benthic invertebrates


Bioaccumulation and biomagnification of PCBs and PBBs - ANSWER✔✔-Increases as trophic level

increases


PCBs high in what animal? - ANSWER✔✔-Orcas




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In 1940s and 1950s milk and meat were contaminated by PCBs and PBBs due to: - ANSWER✔✔-

Contaminated silage of silos


Montana hog slaughter damage incident - ANSWER✔✔-PCB leakage in 19 US states, Canada, Japan


Hudson River contaminated highly by - ANSWER✔✔-PCBs




Due to 20yrs of discharge


Rice bran oil in Japan and Taiwan contaminated with: - ANSWER✔✔-PCBs


Catfish in _______ contaminted by PCBs - ANSWER✔✔-Galveston


Monsanto lawsuit in San Diego due to ________ contamination? - ANSWER✔✔-PCB


____________ are major routes of elimination of PBBs - ANSWER✔✔-Milk and EGGS via animal to

animal


The __________ is the primary site of PCB metabolism - ANSWER✔✔-Liver




eliminated via bile and feces


PCBs are __________ metabolized and excreted - ANSWER✔✔-slowly


PCBs with more than _ Chlorines and _____-chlorines show the longest half lives - ANSWER✔✔-5; PARA


_________-PCBs disrupt TH by binding to transthyretin - ANSWER✔✔-ORTHO


FOR PCBS: _______ chlorine =__________metabolism = __________ found in adipose tissue -

ANSWER✔✔-More; less ; More

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