Biol 320 Exam 1
BIOL 320 EXAM 1 NEWEST 2025 ACTUAL EXAM COMPLETE
QUESTIONS AND CORRECT ANSWERS(VERIFIED ANSWERS)
|ALREADY GRADED A+
What are examples of endocrine glands? - ANSWER-thyroid gland
liver
pituitary gland
thalamus gland
What are examples of exocrine glands? - ANSWER-salivary glands
pancreas
liver
sebaceous
What is the function of simple squamous epithelia? - ANSWER-allows passage of materials by
diffusion and filtration in sites where protection is not important; secretes lubricating
substances in serosae
Where is simple squamous epithelia found? - ANSWER-kidney
air sacs of lungs
lining of heart
blood vessels
lymphatic vessels
lining of ventral body cavity
What is the function of simple cuboidal epithelia? - ANSWER-secretion and absorption
1|Page
, Biol 320 Exam 1
Where is simple cuboidal epithelia found? - ANSWER-kidney
ducts of secretory portions of small glands
ovary surface
What is the function of simple columnar eipithelium? - ANSWER-absorption, secretion of
mucus, enzymes, and other substances
Where is simple columnar epithelia found? - ANSWER-execratory ducts of some glands
(digestive, respiratory, execratory systems)
What is the function of pseudostratified columnar epithelium? - ANSWER-secretion, particularly
of mucus, propulsion of mucus by ciliary action
Where is pseudostratified columnar epithelium found? - ANSWER-in the trachea and upper
respiratory tract
What is they function of stratified squamous epithelium? - ANSWER-protects underlying areas
subjected to abrasion
Where is stratified squamous epithelium found? - ANSWER-moist linings of esophagus, mouth,
vagina, epidermis of skin
What is the function of transition epithelium? - ANSWER-stretch and permits distension of
urinary organs
Where is transition epithelium found? - ANSWER-lines ureters, bladder and part of the urethra
2|Page
, Biol 320 Exam 1
What is autocrine communication? - ANSWER-secreted by cells that tend to work in local areas
What is an example of autocrine communication? - ANSWER-sweat
What is paracrine communication? - ANSWER-goes out of cell into interstitial, local affecting
chemical
What is an example of paracrine communication? - ANSWER-histamine
What is neurotransmitter communication? - ANSWER-produced by neurons, go across synaptic
cleft and receptor on neuron or muscles
What are examples of neurotransmitter communication? - ANSWER-acetylcholine
epinephrine
What do the nervous system and endocrine system have in common? - ANSWER-- react to
stimuli
- maintain homeostasis
- send messages
- hypothalamus
Facts about nervous system - ANSWER-- fast response
- uses impulses
- brain, spinal cord, nerves
- uses neurons
- CNS/ PSN
3|Page
, Biol 320 Exam 1
Facts about endocrine system - ANSWER-- slow response
- uses hormones
- glands
- travel through bloodstream
- adrenaline, thyroxin, HGH, insulin, testosterone
In a hormone signal what determines the strength? - ANSWER-the concentration of the
hormone
In hormone signaling, a small concentration of a hormone is a ____ signal and produces a ___
response whereas a larger concentration is a ___ signal and results in a ___ response. -
ANSWER-weak
small
strong
greater
Endocrine system is an ____ and a ____. - ANSWER-enzyme
hormone
____ chemical secreted into blood, travels some distance to target tissues, to regulate near/far
organ functions - ANSWER-Endocrine
Endocrine vs Exocrine - ANSWER-endo:
- slower
-secrete hormone
- no ducts
4|Page
BIOL 320 EXAM 1 NEWEST 2025 ACTUAL EXAM COMPLETE
QUESTIONS AND CORRECT ANSWERS(VERIFIED ANSWERS)
|ALREADY GRADED A+
What are examples of endocrine glands? - ANSWER-thyroid gland
liver
pituitary gland
thalamus gland
What are examples of exocrine glands? - ANSWER-salivary glands
pancreas
liver
sebaceous
What is the function of simple squamous epithelia? - ANSWER-allows passage of materials by
diffusion and filtration in sites where protection is not important; secretes lubricating
substances in serosae
Where is simple squamous epithelia found? - ANSWER-kidney
air sacs of lungs
lining of heart
blood vessels
lymphatic vessels
lining of ventral body cavity
What is the function of simple cuboidal epithelia? - ANSWER-secretion and absorption
1|Page
, Biol 320 Exam 1
Where is simple cuboidal epithelia found? - ANSWER-kidney
ducts of secretory portions of small glands
ovary surface
What is the function of simple columnar eipithelium? - ANSWER-absorption, secretion of
mucus, enzymes, and other substances
Where is simple columnar epithelia found? - ANSWER-execratory ducts of some glands
(digestive, respiratory, execratory systems)
What is the function of pseudostratified columnar epithelium? - ANSWER-secretion, particularly
of mucus, propulsion of mucus by ciliary action
Where is pseudostratified columnar epithelium found? - ANSWER-in the trachea and upper
respiratory tract
What is they function of stratified squamous epithelium? - ANSWER-protects underlying areas
subjected to abrasion
Where is stratified squamous epithelium found? - ANSWER-moist linings of esophagus, mouth,
vagina, epidermis of skin
What is the function of transition epithelium? - ANSWER-stretch and permits distension of
urinary organs
Where is transition epithelium found? - ANSWER-lines ureters, bladder and part of the urethra
2|Page
, Biol 320 Exam 1
What is autocrine communication? - ANSWER-secreted by cells that tend to work in local areas
What is an example of autocrine communication? - ANSWER-sweat
What is paracrine communication? - ANSWER-goes out of cell into interstitial, local affecting
chemical
What is an example of paracrine communication? - ANSWER-histamine
What is neurotransmitter communication? - ANSWER-produced by neurons, go across synaptic
cleft and receptor on neuron or muscles
What are examples of neurotransmitter communication? - ANSWER-acetylcholine
epinephrine
What do the nervous system and endocrine system have in common? - ANSWER-- react to
stimuli
- maintain homeostasis
- send messages
- hypothalamus
Facts about nervous system - ANSWER-- fast response
- uses impulses
- brain, spinal cord, nerves
- uses neurons
- CNS/ PSN
3|Page
, Biol 320 Exam 1
Facts about endocrine system - ANSWER-- slow response
- uses hormones
- glands
- travel through bloodstream
- adrenaline, thyroxin, HGH, insulin, testosterone
In a hormone signal what determines the strength? - ANSWER-the concentration of the
hormone
In hormone signaling, a small concentration of a hormone is a ____ signal and produces a ___
response whereas a larger concentration is a ___ signal and results in a ___ response. -
ANSWER-weak
small
strong
greater
Endocrine system is an ____ and a ____. - ANSWER-enzyme
hormone
____ chemical secreted into blood, travels some distance to target tissues, to regulate near/far
organ functions - ANSWER-Endocrine
Endocrine vs Exocrine - ANSWER-endo:
- slower
-secrete hormone
- no ducts
4|Page
