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BIO 200 Final exam QUESTIONS & ANSWERS
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The body's automatic tendency to maintain a constant internal environment is termed - ANSWER homeostasis Which of the following is NOT an example of a negative feedback that would result in homeostasis? - ANSWER an increase in the elngth of daylight causes brown fat in hibernating bats to increa...

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  • October 9, 2024
  • 10
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • bio 200
  • bio 200 final exam questions answers
  • the bodys automatic tendency to maintain a consta
  • which of the following is not an example of a nega
  • hormones answer circulate via blood hemolymph af

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  • BIO 200
  • BIO 200

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BIO 200 Final exam QUESTIONS &
ANSWERS
The body's automatic tendency to maintain a constant internal environment is termed - ANSWER
homeostasis



Which of the following is NOT an example of a negative feedback that would result in homeostasis? -
ANSWER an increase in the elngth of daylight causes brown fat in hibernating bats to increase their heat
output, which increases body temperature of bats



hormones - ANSWER circulate via blood hemolymph

affects specific cells with appropriate receptors



local regulators - ANSWER communication between neighboring cells



neurotransmitters - ANSWER communication between nerves across synapses



pheromones - ANSWER communication between individuals across environment



endocrine system - ANSWER less fast, lasts longer, hormones



nervous system - ANSWER fast response, short, neurotransmitters



lipid-soluble hormone types - ANSWER steroid (cortisol) amine (thyroxine)



water-soluble hormone types - ANSWER polypeptide (insulin) amine (epinephrine)



water soluble hormones - ANSWER in/inactive enzymes

, change uptake/secretion

DNA transcription rate

cytoskeleton arrangment



lipid-soluble hormones - ANSWER move through membrane via diffusion

receptors inside cell



feedback loop - ANSWER e.g. liver

glucagon and insulin



people with type I diabetes take insulin after meals to help maintain their blood sugar levels.
Automatically, such diabetics suffer from... - ANSWER damaged pancreatic cells that do not respond well
to high glucose levels



monitoring and control - ANSWER blood pH, blood temp, and seasonal changes via the hypothalamus



In kidneys, which homrone is most effective at causing increased number of aquaporins to be present in
collecting duct epithelia, and what is the source of this hormone? - ANSWER ADH; posterior pituitary
gland



posterior pituitary - ANSWER neural connection to hypothalamus

oxytocin and antidiuretic hormone



oxytocin - ANSWER lactation, uterine contractions, mood and sexual arousal



antidiuretic hormone - ANSWER degree of urine concentration



tropic hormones - ANSWER in anterior pituitary, signals production of other hormones



anterior pituitary - ANSWER circulatory/hormonal connection to hypothalamus (releasing vs. inhibiting)

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