BIO 169 Exam 1 Questions With Correct
Answers
Does the endocrine system work slow or fast? - answerSlow but lasts longer
Which system does the endocrine system work with? - answerNervous system
What are functions of the endocrine system? - answerregulates metabolism, digestion,
reproduction
F...
BRIGHTSTARS EXAM STUDY SOLUTIONS 8/15/2024 2:05 PM
BIO 169 Exam 1 Questions With Correct
Answers
Does the endocrine system work slow or fast? - answer✔✔Slow but lasts longer
Which system does the endocrine system work with? - answer✔✔Nervous system
What are functions of the endocrine system? - answer✔✔regulates metabolism, digestion,
reproduction
Free hormones act on their target tissues immediately after being delivered from the blood. True
or False - answer✔✔True
Exocrine secretes glands through ducts true or false - answer✔✔true
Where does endocrine release? - answer✔✔Blood stream
What links the nervous system to the endocrine system? - answer✔✔hypothalamus
What are hormones? - answer✔✔Chemical messengers that control the growth, differentiation,
and metabolism of specific target cells
What is autocrine? - answer✔✔Local regulator acts on the cell that released it (a note to remind
yourself) common in cancer cells
Paracrine? - answer✔✔Referring to a secreted molecule that acts on a neighboring cell.
Steroid hormones are synthesized by - answer✔✔cholesterol
True or false: Hormones only have an affect on target cell. - answer✔✔true
What are water soluble hormones? - answer✔✔bind to receptors outside of plasma membrane.
Work through second messengers. CANNOT ENTER DIRECTLY. MUST GO THROUGH
RECEPTOR
What are lipid soluble hormones? - answer✔✔have receptors inside of cell which bind inside of
cell.
G proteins turn ATP into - answer✔✔cAMP
, BRIGHTSTARS EXAM STUDY SOLUTIONS 8/15/2024 2:05 PM
What happens when something binds to a protein? - answer✔✔shape is changed therefore the
job of protein is changed.
Calcium acts as which messenger? - answer✔✔Second messenger
Do steroid and thyroid hormones need secondary messengers? - answer✔✔No, they diffuse
directly into target cells
mRNA makes ______ - answer✔✔protein
Are specific receptors necessary? If so, why? - answer✔✔Yes bc When you have a receptor that
receptor is only gonna be able to "see" a certain type of hormone. If there is no receptor, that cell
is not going to be affected.
What does thyroid hormone make us produce more of? - answer✔✔ATP
What is down regulate? - answer✔✔a cell starts to get overwhelmed and decrease the number of
receptors to lower number of signals.
What is up regulate? - answer✔✔when cells up the number of signals.
Endocrine glands will be stimulated by_________ - answer✔✔other hormones or neural stimuli
What is considered master gland? - answer✔✔Pituitary
What are the two major lobes of the pituitary? - answer✔✔posterior pituitary and anterior
pituitary
posterior pituitary is - answer✔✔neural tissue that comes from the brain and hypothalamus.
Oxytocin and antidiuretic is stored in the posterior pituitary but produced by the hypothalamus.
Anterior pituitary is - answer✔✔blood connection to hypothalamus not nervous. Hypothalamus
will interact with anterior lobe to release hormones.
What does oxytocin play a role in? - answer✔✔childbirth and milk
Antidiuretic was known as ________? What does this do? - answer✔✔Vasopressin. Helps keep
water inside body. Targets kidneys to reabsorb water. This is inhibited by ALCOHOL. Alcohol
inhibits antidiuretic hormone which dehydrates you.
Prolactin is ______? - answer✔✔a hormone that plays a role in milk production.
Growth hormone plays a role in - answer✔✔growth and dwarfism . Bone and skeletal.
Hypothalamus increases or decreases growth hormone. true or false - answer✔✔true
Gigantism is caused by - answer✔✔overproduction of GH( growth hormone)
Hyposecretion results in - answer✔✔dwarfism (not enough growth hormone)
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