BIO 109 EXAM #2 QUESTIONS AND
ANSWERS
shed dead cells - ANSWER-Trauma to stratum basale would NOT interfere with the
skin's ability to:
desmosome - ANSWER-What type of intercellular junction bands together adjacent
cells, making the epidermis stronger?
stratum granulosum - ANSWER-Which layer of the epidermis is characterized by
prominent cytoplasmic granules in the cells?
20 to 40 days - ANSWER-How long will it take for a suntan to fade?
Merkel cell - ANSWER-Jill is blind and often uses braille (a system of raised dots) to
read her school assignments. What cell in the stratum basale of the epidermis helps
her discriminate between the textured dots?
lucidum - ANSWER-Thin skin lacks stratum
hair follicles - ANSWER-Thick skin lacks
one less layer of keratinocytes than thick skin - ANSWER-Thin skin contains
palms - ANSWER-Where is thick skin located?
stratum corneum - ANSWER-A callus may develop when both thin and thick skin are
subjected to repeated pressure. Which layer of the epidermis develops the callus?
direct long-term functions such as growth - ANSWER-What is NOT a function of the
nervous system?
Blood flow to the dermis increases - ANSWER-Which of the following occurs if body
temperature rises above normal?
Dermal blood vessels vasoconstrict. - ANSWER-Which of the following is an
appropriate skin response to cold?
Vitamin D is required for calcium absorption from the small intestine. - ANSWER-
Why is vitamin D necessary?
keratinocyte - ANSWER-Which of the following cells are arranged in layers, or strata,
in the epidermis?
tear upon being mechanically stressed - ANSWER-Skin without keratin would be
more likely to
ANSWERS
shed dead cells - ANSWER-Trauma to stratum basale would NOT interfere with the
skin's ability to:
desmosome - ANSWER-What type of intercellular junction bands together adjacent
cells, making the epidermis stronger?
stratum granulosum - ANSWER-Which layer of the epidermis is characterized by
prominent cytoplasmic granules in the cells?
20 to 40 days - ANSWER-How long will it take for a suntan to fade?
Merkel cell - ANSWER-Jill is blind and often uses braille (a system of raised dots) to
read her school assignments. What cell in the stratum basale of the epidermis helps
her discriminate between the textured dots?
lucidum - ANSWER-Thin skin lacks stratum
hair follicles - ANSWER-Thick skin lacks
one less layer of keratinocytes than thick skin - ANSWER-Thin skin contains
palms - ANSWER-Where is thick skin located?
stratum corneum - ANSWER-A callus may develop when both thin and thick skin are
subjected to repeated pressure. Which layer of the epidermis develops the callus?
direct long-term functions such as growth - ANSWER-What is NOT a function of the
nervous system?
Blood flow to the dermis increases - ANSWER-Which of the following occurs if body
temperature rises above normal?
Dermal blood vessels vasoconstrict. - ANSWER-Which of the following is an
appropriate skin response to cold?
Vitamin D is required for calcium absorption from the small intestine. - ANSWER-
Why is vitamin D necessary?
keratinocyte - ANSWER-Which of the following cells are arranged in layers, or strata,
in the epidermis?
tear upon being mechanically stressed - ANSWER-Skin without keratin would be
more likely to
