Biol 2220 Exam 2 UPDATED Exam
Questions and CORRECT Answers
2 types of epithelial tissue - CORRECT ANSWER - covering and lining, glandular
what does covering and lining epithelium do/cover? - CORRECT ANSWER - limiting
boundary of free body surfaces; all skin and cavities open to the environment (we are like a
straw)
basal layer of covering and lining epithelium - CORRECT ANSWER - deep, attaches to
dense irregular connective tissue by a basement membrane
basement membrane components - CORRECT ANSWER - reticular lamina and basal
lamina
basal lamina - CORRECT ANSWER - superficial layer of basement membrane; non
cellular filter made up of glycoproteins
reticular lamina - CORRECT ANSWER - deep layer of basement membrane; collagen
Does epithelial tissue have blood supply? - CORRECT ANSWER - no it is avascular and
dependent on the dermis (dense irregular CT) for nutrients
What is glandular epithelium? - CORRECT ANSWER - epithelial cells that produce and
secrete substances into ducts or body fluids
What is the foundation for glandular secretions? - CORRECT ANSWER - water based
(very occasionally lipid)
,What do glands need to function? - CORRECT ANSWER - ATP for active transport out of
the cell
exocrine gland - CORRECT ANSWER - gland that releases its secretions through ducts
endocrine gland - CORRECT ANSWER - gland that releases its secretion onto a surface
where do all secretions inevitably end up - CORRECT ANSWER - bloodstream
unicellular exocrine gland - CORRECT ANSWER - goblet cell, found in PCCE, secrete
mucin
merocrine exocrine gland method of secretion - CORRECT ANSWER - vesicular
transport/exocytosis
holocrine gland method of secretion - CORRECT ANSWER - product is stored in cells,
cells disintegrate, cell has to be replaced
merocrine gland example - CORRECT ANSWER - sweat, saliva
holocrine gland example - CORRECT ANSWER - sebaceous gland
cardiac muscle characteristics (4) - CORRECT ANSWER - intercalated discs, striations,
involuntary, uninucleate
smooth muscle characteristics (2) - CORRECT ANSWER - no striation, involuntary
skeletal muscle characteristics (3) - CORRECT ANSWER - striations, voluntary,
multinucleate
, Components of connective tissue - CORRECT ANSWER - ground substance, fibers, and
cells
ground substance of connective tissue - CORRECT ANSWER - often interstitial fluid
fibers of connective tissue and their functions (3) - CORRECT ANSWER - collagen
(strength), elastic (stretch), reticular (mesh webbing)
4 types of connective tissue - CORRECT ANSWER - connective tissue proper, cartilage,
bone tissue, blood
5 types of connective tissue proper - CORRECT ANSWER - 1. areolar connective tissue
2. Dense irregular connective tissue
3. Dense regular connective tissue
4. Adipose tissue
5. Reticular tissue
3 types of cartilage - CORRECT ANSWER - hyaline, elastic, fibrocartilage
steps of gastrula development - CORRECT ANSWER - zygote cleaves into 8 cells, which
cleave again to form a blastula (hollow ball of cells), which undergoes gastrulation (infolding) to
form a gastrula
ectoderm turns into - CORRECT ANSWER - epithelial and nervous tissue
mesoderm turns into - CORRECT ANSWER - epithelial, connective, and muscular
endoderm turns into - CORRECT ANSWER - epithelium
Questions and CORRECT Answers
2 types of epithelial tissue - CORRECT ANSWER - covering and lining, glandular
what does covering and lining epithelium do/cover? - CORRECT ANSWER - limiting
boundary of free body surfaces; all skin and cavities open to the environment (we are like a
straw)
basal layer of covering and lining epithelium - CORRECT ANSWER - deep, attaches to
dense irregular connective tissue by a basement membrane
basement membrane components - CORRECT ANSWER - reticular lamina and basal
lamina
basal lamina - CORRECT ANSWER - superficial layer of basement membrane; non
cellular filter made up of glycoproteins
reticular lamina - CORRECT ANSWER - deep layer of basement membrane; collagen
Does epithelial tissue have blood supply? - CORRECT ANSWER - no it is avascular and
dependent on the dermis (dense irregular CT) for nutrients
What is glandular epithelium? - CORRECT ANSWER - epithelial cells that produce and
secrete substances into ducts or body fluids
What is the foundation for glandular secretions? - CORRECT ANSWER - water based
(very occasionally lipid)
,What do glands need to function? - CORRECT ANSWER - ATP for active transport out of
the cell
exocrine gland - CORRECT ANSWER - gland that releases its secretions through ducts
endocrine gland - CORRECT ANSWER - gland that releases its secretion onto a surface
where do all secretions inevitably end up - CORRECT ANSWER - bloodstream
unicellular exocrine gland - CORRECT ANSWER - goblet cell, found in PCCE, secrete
mucin
merocrine exocrine gland method of secretion - CORRECT ANSWER - vesicular
transport/exocytosis
holocrine gland method of secretion - CORRECT ANSWER - product is stored in cells,
cells disintegrate, cell has to be replaced
merocrine gland example - CORRECT ANSWER - sweat, saliva
holocrine gland example - CORRECT ANSWER - sebaceous gland
cardiac muscle characteristics (4) - CORRECT ANSWER - intercalated discs, striations,
involuntary, uninucleate
smooth muscle characteristics (2) - CORRECT ANSWER - no striation, involuntary
skeletal muscle characteristics (3) - CORRECT ANSWER - striations, voluntary,
multinucleate
, Components of connective tissue - CORRECT ANSWER - ground substance, fibers, and
cells
ground substance of connective tissue - CORRECT ANSWER - often interstitial fluid
fibers of connective tissue and their functions (3) - CORRECT ANSWER - collagen
(strength), elastic (stretch), reticular (mesh webbing)
4 types of connective tissue - CORRECT ANSWER - connective tissue proper, cartilage,
bone tissue, blood
5 types of connective tissue proper - CORRECT ANSWER - 1. areolar connective tissue
2. Dense irregular connective tissue
3. Dense regular connective tissue
4. Adipose tissue
5. Reticular tissue
3 types of cartilage - CORRECT ANSWER - hyaline, elastic, fibrocartilage
steps of gastrula development - CORRECT ANSWER - zygote cleaves into 8 cells, which
cleave again to form a blastula (hollow ball of cells), which undergoes gastrulation (infolding) to
form a gastrula
ectoderm turns into - CORRECT ANSWER - epithelial and nervous tissue
mesoderm turns into - CORRECT ANSWER - epithelial, connective, and muscular
endoderm turns into - CORRECT ANSWER - epithelium
