GCU BIO202 EXAM 1
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1. hormones pro- Hormones react on each other and help keep homeostasis in an organism. Hor-
mote body home- mones released from one gland can tell other glands to make different hormones
ostasis
2. Endocrine sys- -uses hormones
tem -effects many organs
-is slower and longer lasting
3. nervous system -uses electricity and chemicals
-has a specific effector organ
-faster
4. neurotransmitter a chemical compound released by one neuron to affect the trans membrane
potential of another
5. hormone -A compound that is secreted by one cell and that travels through the bloodstream
to affect the activities of cells in another portion of the body.
-Turn existing enzyme "on" or "off"
6. negative feed- -response to changed body condition
back and its -ex. signals tell body to make changes that will bring back to normal level.
role in regulating -once back to normal, will turn off.
blood levels of
the various hor-
mones
7. Three types of -direct communication
intercellular com- -paracrine
munication path- -endocrine
ways that enable
the body to main-
tain homeostasis
, GCU BIO202 EXAM 1
Study online at https://quizlet.com/_eh1v7k
8. Direct communi- occurs between 2 types of the same cell
cation
9. paracrine Most common. uses chemical signals to transfer from cell to cell within single tissue
10. Endocrine slower. release into bloodstream. Alters metabolic activities.
11. Target organ specific cells that posessess receptors needed to bind and "read" hormonal mes-
sages
12. Lock and Key sys- Hormones fit receptors on "target cells"
tem
13. Three ways in -amino acid derivatives
which hormones -peptide hormones
are classified -lipid derivatives (steroid hormones)
14. Free hormones -less than 1 hour function
-diffuse out of bloodstream
-brokendown/absorbed by kidney/liver
-broken down by enzymes
15. Protein bound -Remain much longer
hormones -enter bloodstream
16. Lipid soluble hor- -steroid hormone enters cell and binds to intracellular receptor
mone -enters nucleus
-binds to hormone response element
-initiates transcription of the gene to mRNA
-mRNA directs protein synthesis
17. Lipid insoluble -nonsteroid hormone enters receptor protein (first messenger)
hormone -receptor protein enters activated enzyme and generates ATP and cAMP (Second
Study online at https://quizlet.com/_eh1v7k
1. hormones pro- Hormones react on each other and help keep homeostasis in an organism. Hor-
mote body home- mones released from one gland can tell other glands to make different hormones
ostasis
2. Endocrine sys- -uses hormones
tem -effects many organs
-is slower and longer lasting
3. nervous system -uses electricity and chemicals
-has a specific effector organ
-faster
4. neurotransmitter a chemical compound released by one neuron to affect the trans membrane
potential of another
5. hormone -A compound that is secreted by one cell and that travels through the bloodstream
to affect the activities of cells in another portion of the body.
-Turn existing enzyme "on" or "off"
6. negative feed- -response to changed body condition
back and its -ex. signals tell body to make changes that will bring back to normal level.
role in regulating -once back to normal, will turn off.
blood levels of
the various hor-
mones
7. Three types of -direct communication
intercellular com- -paracrine
munication path- -endocrine
ways that enable
the body to main-
tain homeostasis
, GCU BIO202 EXAM 1
Study online at https://quizlet.com/_eh1v7k
8. Direct communi- occurs between 2 types of the same cell
cation
9. paracrine Most common. uses chemical signals to transfer from cell to cell within single tissue
10. Endocrine slower. release into bloodstream. Alters metabolic activities.
11. Target organ specific cells that posessess receptors needed to bind and "read" hormonal mes-
sages
12. Lock and Key sys- Hormones fit receptors on "target cells"
tem
13. Three ways in -amino acid derivatives
which hormones -peptide hormones
are classified -lipid derivatives (steroid hormones)
14. Free hormones -less than 1 hour function
-diffuse out of bloodstream
-brokendown/absorbed by kidney/liver
-broken down by enzymes
15. Protein bound -Remain much longer
hormones -enter bloodstream
16. Lipid soluble hor- -steroid hormone enters cell and binds to intracellular receptor
mone -enters nucleus
-binds to hormone response element
-initiates transcription of the gene to mRNA
-mRNA directs protein synthesis
17. Lipid insoluble -nonsteroid hormone enters receptor protein (first messenger)
hormone -receptor protein enters activated enzyme and generates ATP and cAMP (Second
