Bio 270 Hynd Final questions and answers graded A
updated to pass
1. packages and labels
Golgi
hor- mones into secretory vesicles
that are stored in cytoplasm
until appropriate signal
2. Once formed,
steroids
(steroids/peptides) im-
mediately diffuse through
plasma membrane to reach
blood
3. (Steroids/Peptides) dissolve in blood Peptides, steroids cannot since they are hy
drophobic
4. Only the (bound/unbound) unbound
hormones are active and capable
of binding with target cell
receptors
5. 50% of are free hormones Catecholamines
and 50% bound to albumin
6. and 8. Hydrophilic hormones
bind with receptors on the (peptides) alter the cell'
target cells outer plasma protein in which one of
membrane surface 2 ways?
7. Steroid and thyroid hormones 9. Hormones' effects are
bind proportional to their ...
to target cells'
re- ceptors
1/
46
,Bio 270 Hynd Final questions and answers graded A
updated to pass
Peptide hormones and Catecholamines Peptides modify PREEXISTING protein while
steroids make a completely new protein
intracellular... because they are lipophilic/hy- drophobic free concentration in the plasma (unbound)!!!!
and easily penetrate the lipid mem- brane of target cell
2/
46
,Bio 270 Hynd Final questions and answers graded A
updated to pass
10. Plasma concentration under homeostatic
control
11. Plasma concentration of free 1) Rate of secretion into the blood
(active) hormones depends on:
2) Rate of metabolic activation/conversion
3) Binding to plasma proteins
(lipophilic hor- mones only)
4) Rate of removal by inactivation and
excretion in urine
12. What is the endocrine disorder - Target cells do not respond adequately to the
"Ab- normal target cell hormone
responsiveness"
- Active free hormone concentration
normal(or even high!)
13. What type of tissue is the anterior pitu- Glandular tissue
itary made of?
14. What type of tissue is the
posterior pi- tuitary made of?
16.
15. ADH is a (anterior/posterior)
pituitary hormone that does
what?
3/
46
,Bio 270 Hynd Final questions and answers graded A
updated to pass
Neural tissue
Posterior Pituitary
-Conserves water during urine formation
-Causes contraction of arteriolar smooth muscle
-Release controlled by hypothalamic
osmoreceptors
4/
46
updated to pass
1. packages and labels
Golgi
hor- mones into secretory vesicles
that are stored in cytoplasm
until appropriate signal
2. Once formed,
steroids
(steroids/peptides) im-
mediately diffuse through
plasma membrane to reach
blood
3. (Steroids/Peptides) dissolve in blood Peptides, steroids cannot since they are hy
drophobic
4. Only the (bound/unbound) unbound
hormones are active and capable
of binding with target cell
receptors
5. 50% of are free hormones Catecholamines
and 50% bound to albumin
6. and 8. Hydrophilic hormones
bind with receptors on the (peptides) alter the cell'
target cells outer plasma protein in which one of
membrane surface 2 ways?
7. Steroid and thyroid hormones 9. Hormones' effects are
bind proportional to their ...
to target cells'
re- ceptors
1/
46
,Bio 270 Hynd Final questions and answers graded A
updated to pass
Peptide hormones and Catecholamines Peptides modify PREEXISTING protein while
steroids make a completely new protein
intracellular... because they are lipophilic/hy- drophobic free concentration in the plasma (unbound)!!!!
and easily penetrate the lipid mem- brane of target cell
2/
46
,Bio 270 Hynd Final questions and answers graded A
updated to pass
10. Plasma concentration under homeostatic
control
11. Plasma concentration of free 1) Rate of secretion into the blood
(active) hormones depends on:
2) Rate of metabolic activation/conversion
3) Binding to plasma proteins
(lipophilic hor- mones only)
4) Rate of removal by inactivation and
excretion in urine
12. What is the endocrine disorder - Target cells do not respond adequately to the
"Ab- normal target cell hormone
responsiveness"
- Active free hormone concentration
normal(or even high!)
13. What type of tissue is the anterior pitu- Glandular tissue
itary made of?
14. What type of tissue is the
posterior pi- tuitary made of?
16.
15. ADH is a (anterior/posterior)
pituitary hormone that does
what?
3/
46
,Bio 270 Hynd Final questions and answers graded A
updated to pass
Neural tissue
Posterior Pituitary
-Conserves water during urine formation
-Causes contraction of arteriolar smooth muscle
-Release controlled by hypothalamic
osmoreceptors
4/
46
