BIOL 320 TAMU EXAM 1 DR. TAYLOR
2025 QUESTIONS AND ANSWERS
Describe the basic functions of simple squamous tissue. - ANS - Areas requiring passive
diffusion
- Areas not requiring much protection
*Found in kidneys, serosae, and linings*
Describe the basic functions of simple cuboidal tissue. - ANS Secretion and absorption
*Ovaries*
Describe the basic functions of simple collumnar tissue. - ANS - Secretion of ENZYMES and
lubes
- Propulsion of stuffs (cilliated)
*Digestive system and resp. system*
Describe the basic functions of pseudostratified collumnar tissue. - ANS Areas requiring
mucous production
Describe the basic functions of stratified squamous tissue. - ANS PROTECTION especially in
areas with a lot of abrasion
*Oral cavity and anus*
Describe the basic functions of transitional tissue. - ANS STRETCHING
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,Differentiate between neural and endocrine signal strength conveyance - ANS Endocrine:
Concentration of hormone
Neural: Frequency of impulse
What are the three ways hormone release is controlled? - ANS - Humoral
- Hormonal
- Neural
Describe up regulation - ANS Upon binding to a hormone, a cell will produce more receptors
for that hormone
Describe down regulation - ANS Upon binding to a hormone, a cell will destroy existing
receptors for that hormone
What type(s) of hormones are lipid soluble? - ANS Steroid hormones
Steroid hormones are produced by what two major glands? - ANS Gonads and the adrenal
cortex
Steroid hormones are derived from _________. - ANS Cholesterol
What type(s) of hormones are water soluble? - ANS Protein and biogenic
Protein hormones are derived from ______. - ANS Amino acids EXCEPT FOR THYROID
HORMONE
Thyroid hormone behaved most like a _________ type hormone. - ANS Steroid
________ soluble hormones tend to have longer half lives. - ANS Lipid
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, What two organs are largely responsible for removing hormones from the system? -
ANS Kidneys: Filter hormones out
Liver: Breaks hormones down
Briefly describe synergistic hormones. - ANS Hormone A + Hormone B = Larger effect than
the simple summation of the two hormones (almost like they are multiplied by one another)
Briefly describe permissive hormones. - ANS Hormone A requires the presence of Hormone B
to be active/effective
Briefly describe antagonistic hormones. - ANS Hormone A negates the effects of Hormone B
and vice versa
_________ is the adenohypophysis. - ANS Anterior pituitary
__________ is the neurohypophysis. - ANS Posterior pituitary
Which section of the pituitary is more neural in function and which is more hormonal in
function? - ANS Adenohypophysis (anterior) = Hormonal
Neurohypophysis (posterior) = Neural
What hormones are released by the posterior pituitary gland? - ANS Oxytocin and anti-
diuretic hormone
Explain the GHRH pathway - ANS 1) Hypothalamus releases GHRH to ant. pit.
2) Ant. pit. releases GH to body
3) GH affect all body tissues
Explain the GnRH pathway - ANS 1) Hypothalamus releases GnRH to ant. pit.
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2025 QUESTIONS AND ANSWERS
Describe the basic functions of simple squamous tissue. - ANS - Areas requiring passive
diffusion
- Areas not requiring much protection
*Found in kidneys, serosae, and linings*
Describe the basic functions of simple cuboidal tissue. - ANS Secretion and absorption
*Ovaries*
Describe the basic functions of simple collumnar tissue. - ANS - Secretion of ENZYMES and
lubes
- Propulsion of stuffs (cilliated)
*Digestive system and resp. system*
Describe the basic functions of pseudostratified collumnar tissue. - ANS Areas requiring
mucous production
Describe the basic functions of stratified squamous tissue. - ANS PROTECTION especially in
areas with a lot of abrasion
*Oral cavity and anus*
Describe the basic functions of transitional tissue. - ANS STRETCHING
Copyright ©2025 BRIGHTSTARS ALL RIGHTS RESERVED 1
,Differentiate between neural and endocrine signal strength conveyance - ANS Endocrine:
Concentration of hormone
Neural: Frequency of impulse
What are the three ways hormone release is controlled? - ANS - Humoral
- Hormonal
- Neural
Describe up regulation - ANS Upon binding to a hormone, a cell will produce more receptors
for that hormone
Describe down regulation - ANS Upon binding to a hormone, a cell will destroy existing
receptors for that hormone
What type(s) of hormones are lipid soluble? - ANS Steroid hormones
Steroid hormones are produced by what two major glands? - ANS Gonads and the adrenal
cortex
Steroid hormones are derived from _________. - ANS Cholesterol
What type(s) of hormones are water soluble? - ANS Protein and biogenic
Protein hormones are derived from ______. - ANS Amino acids EXCEPT FOR THYROID
HORMONE
Thyroid hormone behaved most like a _________ type hormone. - ANS Steroid
________ soluble hormones tend to have longer half lives. - ANS Lipid
Copyright ©2025 BRIGHTSTARS ALL RIGHTS RESERVED 2
, What two organs are largely responsible for removing hormones from the system? -
ANS Kidneys: Filter hormones out
Liver: Breaks hormones down
Briefly describe synergistic hormones. - ANS Hormone A + Hormone B = Larger effect than
the simple summation of the two hormones (almost like they are multiplied by one another)
Briefly describe permissive hormones. - ANS Hormone A requires the presence of Hormone B
to be active/effective
Briefly describe antagonistic hormones. - ANS Hormone A negates the effects of Hormone B
and vice versa
_________ is the adenohypophysis. - ANS Anterior pituitary
__________ is the neurohypophysis. - ANS Posterior pituitary
Which section of the pituitary is more neural in function and which is more hormonal in
function? - ANS Adenohypophysis (anterior) = Hormonal
Neurohypophysis (posterior) = Neural
What hormones are released by the posterior pituitary gland? - ANS Oxytocin and anti-
diuretic hormone
Explain the GHRH pathway - ANS 1) Hypothalamus releases GHRH to ant. pit.
2) Ant. pit. releases GH to body
3) GH affect all body tissues
Explain the GnRH pathway - ANS 1) Hypothalamus releases GnRH to ant. pit.
Copyright ©2025 BRIGHTSTARS ALL RIGHTS RESERVED 3
