PHGY 230 Exam 1 Review Pt. 1 Questions With
Complete Answers
- no opening
- secretes something into the bloodstream and the hormone travels in blood to a target
call
- made of epithelial tissue - ANSWER ductless glands
_______ has to have a _______ in the membrane or inside the cell. - ANSWER target cell;
receptor
- release hormones
- travel long distances throughout body
- slower acting, longer to make - ANSWER endocrine system
- release neurotransmitters
- released at synapse so they don't travel very far
- fast acting, over with quickly - ANSWER nervous system
What do hormones do? - ANSWER 1. open/close channels in membrane
2. activate/deactivate enzymes
3. stimulate cell devision
4. stimulate protein synthesis
5. cause cells to secrete
What stimulates the production and release of hormones? - ANSWER - other hormones,
hormonal stimulation
, - things in the blood, humoral stimulation
- the nervous system, nervous stimulation
One hormone is causing the release of a second hormone - ANSWER hormonal
stimulation
Sympathetic nervous system stimulates the adrenal medulla and releases epinephrin or
norepinephrine - ANSWER nervous stimulation
How are hormones transported in the blood? - ANSWER steroids and proteins
- lipid-soluble hormones
- attached to protein carrier molecules
- carriers protect hormones from early destruction - ANSWER steroids
- water-soluble hormones
- travel freely through the blood - ANSWER proteins
How much of a hormone will you see in the blood stream? - ANSWER depends upon how
fast it is made and how fast it is eliminated
Hormone elimination occurs when - ANSWER - liver breaks it down
- goes out in urine
- target cells uptake
Types of circulating hormones
- nonpolar, lipid-soluble molecules
Complete Answers
- no opening
- secretes something into the bloodstream and the hormone travels in blood to a target
call
- made of epithelial tissue - ANSWER ductless glands
_______ has to have a _______ in the membrane or inside the cell. - ANSWER target cell;
receptor
- release hormones
- travel long distances throughout body
- slower acting, longer to make - ANSWER endocrine system
- release neurotransmitters
- released at synapse so they don't travel very far
- fast acting, over with quickly - ANSWER nervous system
What do hormones do? - ANSWER 1. open/close channels in membrane
2. activate/deactivate enzymes
3. stimulate cell devision
4. stimulate protein synthesis
5. cause cells to secrete
What stimulates the production and release of hormones? - ANSWER - other hormones,
hormonal stimulation
, - things in the blood, humoral stimulation
- the nervous system, nervous stimulation
One hormone is causing the release of a second hormone - ANSWER hormonal
stimulation
Sympathetic nervous system stimulates the adrenal medulla and releases epinephrin or
norepinephrine - ANSWER nervous stimulation
How are hormones transported in the blood? - ANSWER steroids and proteins
- lipid-soluble hormones
- attached to protein carrier molecules
- carriers protect hormones from early destruction - ANSWER steroids
- water-soluble hormones
- travel freely through the blood - ANSWER proteins
How much of a hormone will you see in the blood stream? - ANSWER depends upon how
fast it is made and how fast it is eliminated
Hormone elimination occurs when - ANSWER - liver breaks it down
- goes out in urine
- target cells uptake
Types of circulating hormones
- nonpolar, lipid-soluble molecules
