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Alberta Biology 30: Endocrine System Questions and Answers 100% Solved
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Alberta Biology 30: Endocrine System Questions and Answers 100% Solved
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Alberta Biology 30: Endocrine System Questions andAnswers 100% Solved
What is the target for thyroxine? -Answer All tissues (heart, muscles, lungs, etc).
What stimulates the release of thyroxine? -Answer Cold, stress, growth.
What is the purpose of thyroxine? -Answer To increase cellular respiration (increase
glucose
consumption & heat)
What is Grave's disease? What are some symptoms? -Answer Overproduction of thyroxine
-
immune system attacks the thyroid gland and muscles around the eyes. Symptom: bulging
eyes.
Which hormone is responsible for the growth of long bones and muscles? Where is it
produced? -Answer hGH (human growth hormone); anterior pituitary
What stimulates the release of hGH? -Answer Puberty, exercise, sleep, starvation
What does the oversecretion of hGH lead to in adults? In children? -Answer Children =
gigantism
Adults = acromegaly
What does the under secretion of hGH lead to? -Answer Dwarfism
, Which two hormones regulate blood calcium levels? -Answer PTH (parathyroid hormone)
and calcitonin
TIP: paRathyroid = Raise blood calcium
caLcitonin = Lower blood calcium
Where is PTH found? What is its stimulus? Where does it target? -Answer Parathyroid
gland;
low blood calcium levels; bones, small intestine, kidneys.
What is an endocrine gland? -Answer Ductless; secretes hormones directly into the
bloodstream; migrate throughout the body to target
What is an exocrine gland? -Answer Ducts; secret chemicals directly to target site; local
area
What kind of gland is the pancreas? -Answer Both exo and endo.
What are the two types of hormones? -Answer Steroid/nonsteroid
What are steroid hormones? Give an example. -Answer Lipids; easily move through cell
membranes; bind to receptors inside cell. Example: aldosterone
What are nonsteroid hormones? Give an example. -Answer Proteins/peptides; bind to
receptors on cell membrane; initiates change inside cell. Example: ADH
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