BIO 169 Exam 1; Questions & Answers 100%
Correct
Does the endocrine system work slow or fast? Correct answer-Slow but lasts longer
Which system does the endocrine system work with? Correct answer-Nervous system
What are functions of the endocrine system? Correct answer-regulates metabolism,
...
BIO 169 Exam 1; Questions & Answers 100%
Correct
Does the endocrine system work slow or fast? Correct answer-Slow but lasts longer
Which system does the endocrine system work with? Correct answer-Nervous system
What are functions of the endocrine system? Correct answer-regulates metabolism,
digestion, reproduction
Free hormones act on their target tissues immediately after being delivered from the blood.
True or False Correct answer-True
Exocrine secretes glands through ducts true or false Correct answer-true
Where does endocrine release? Correct answer-Blood stream
What links the nervous system to the endocrine system? Correct answer-hypothalamus
What are hormones? Correct answer-Chemical messengers that control the growth,
differentiation, and metabolism of specific target cells
What is autocrine? Correct answer-Local regulator acts on the cell that released it (a note
to remind yourself) common in cancer cells
, BIO 169 Exam 1; Questions & Answers 100%
Correct
Paracrine? Correct answer-Referring to a secreted molecule that acts on a neighboring
cell.
Steroid hormones are synthesized by Correct answer-cholesterol
True or false: Hormones only have an affect on target cell. Correct answer-true
What are water soluble hormones? Correct answer-bind to receptors outside of plasma
membrane. Work through second messengers. CANNOT ENTER DIRECTLY. MUST GO THROUGH
RECEPTOR
What are lipid soluble hormones? Correct answer-have receptors inside of cell which
bind inside of cell.
G proteins turn ATP into Correct answer-cAMP
What happens when something binds to a protein? Correct answer-shape is changed
therefore the job of protein is changed.
Calcium acts as which messenger? Correct answer-Second messenger
, BIO 169 Exam 1; Questions & Answers 100%
Correct
Do steroid and thyroid hormones need secondary messengers? Correct answer-No, they
diffuse directly into target cells
mRNA makes ______ Correct answer-protein
Are specific receptors necessary? If so, why? Correct 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? Correct answer-ATP
What is down regulate? Correct answer-a cell starts to get overwhelmed and decrease
the number of receptors to lower number of signals.
What is up regulate? Correct answer-when cells up the number of signals.
Endocrine glands will be stimulated by_________ Correct answer-other hormones or
neural stimuli
What is considered master gland? Correct answer-Pituitary
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