BIO 109- CHAPTER #21 REVIEW EXAM
QUESTIONS AND ANSWERS
What is most likely to be responsible if, when your blood sugar level rose, the level
went back down? - ANSWER-a homeostatic mechanism based on negative
feedback
When body temperature is too low, what occurs - ANSWER-Blood vessel in the skin
constrict
What is a physiological response that takes place in many animals when they get too
hot? - ANSWER-increased blood flow to the skin
What is an example of thermoregulation in ectotherms - ANSWER-sitting on a hot
rock to absorb its warmth
What is the study of the microscopic structure of tissue? - ANSWER-histology
What surrounds blood vessels and nerve cells throughout bones and communicate
with bone cells? They do this through connections called canaliculi. - ANSWER-
haversian canals
What are the four main tissue types of the human body? - ANSWER-Epithelial,
Connective, Muscle, and Nervous
What are some roles epithelial tissues play in the body? - ANSWER-The multiple
layers of epithelial cells serve a protective role, whereas the lining of capillaries
contain a single layer that promotes exchange.
Name three places in the body you would find connective tissue. - ANSWER-in the
cartilage, bone, and blood.
What is homeostasis? - ANSWER-It means "steady state" and is the tendency to
maintain relatively constant conditions in the internal environment even if the
external environment changes.
What is the control of the gain or loss of water and dissolved solutes? - ANSWER-
osmoregulation
How do humans regulate their body temperature? - ANSWER-through
thermoregulation
Which blood cells contain a nucleus? - ANSWER-White blood cells
What types of tissues does skin contain? - ANSWER-Muscle, epithelial, connective,
and nervous tissues
QUESTIONS AND ANSWERS
What is most likely to be responsible if, when your blood sugar level rose, the level
went back down? - ANSWER-a homeostatic mechanism based on negative
feedback
When body temperature is too low, what occurs - ANSWER-Blood vessel in the skin
constrict
What is a physiological response that takes place in many animals when they get too
hot? - ANSWER-increased blood flow to the skin
What is an example of thermoregulation in ectotherms - ANSWER-sitting on a hot
rock to absorb its warmth
What is the study of the microscopic structure of tissue? - ANSWER-histology
What surrounds blood vessels and nerve cells throughout bones and communicate
with bone cells? They do this through connections called canaliculi. - ANSWER-
haversian canals
What are the four main tissue types of the human body? - ANSWER-Epithelial,
Connective, Muscle, and Nervous
What are some roles epithelial tissues play in the body? - ANSWER-The multiple
layers of epithelial cells serve a protective role, whereas the lining of capillaries
contain a single layer that promotes exchange.
Name three places in the body you would find connective tissue. - ANSWER-in the
cartilage, bone, and blood.
What is homeostasis? - ANSWER-It means "steady state" and is the tendency to
maintain relatively constant conditions in the internal environment even if the
external environment changes.
What is the control of the gain or loss of water and dissolved solutes? - ANSWER-
osmoregulation
How do humans regulate their body temperature? - ANSWER-through
thermoregulation
Which blood cells contain a nucleus? - ANSWER-White blood cells
What types of tissues does skin contain? - ANSWER-Muscle, epithelial, connective,
and nervous tissues
