BIO 141: CHAPTER 5: TISSUE ORGANIZATION: TEST
QUESTIONS WITH COMPLETE SOLUTIONS
goblet cells -- Answer ✔✔ 1. secrete glycoprotein, mucin
2. forms mucus when mixed with water
Cells organized into more complex units termed _________ -- Answer ✔✔ tissues
What are the four types of tissues? -- Answer ✔✔ 1. epithelial
2. connective
3. muscle
4. nervous
What are three characteristics of tissues -- Answer ✔✔ 1. groups of similar cells and
extracellular material
2. perform a common function, e.g., providing protection
3. the study of tissues termed histology
simple columnar epithelium (ciliated) -- Answer ✔✔ 1. has cilia projecting from apical
surface, move mucus along
2. goblet cells interspersed
,3. bronchioles, uterine tubes (moving oocyte)
Pseudostratified columnar epithelium -- Answer ✔✔ 1. appears to consist of multiple
cell layers
2. not really stratified (nuclei scattered at different distances and not all cells reaching
apical membrane)
3. can be ciliated or nonciliated
ciliated pseudostratified columnar epithelium -- Answer ✔✔ 1. houses goblet cells
2. moves mucus
3. found in large passageways of the respiratory system
nonciliated pseudostratified columnar epithelium -- Answer ✔✔ 1. lacks goblet cells and
celia
2. occurs mainly in male urethra and epididymis (holding immature sperm cells)
stratified squamous epithelium -- Answer ✔✔ 1. protects against abrasion and friction
2. has multiple cell layers
3. stem cells in basal layer that continuously divide
4. exists in nonkeratinized and keratinized forms
nonkeratinized stratified squamous epithelium -- Answer ✔✔ 1. alive all the way to
tissue's apical surface
2. have microscopically visible cell nuclei
3. kept moist with secretions (ex. saliva, mucus)
4. lack keratin, protective protein
5. lining found in oral cavity, part of pharynx, esophagus, vagina, anus
, keratinized stratified squamous epithelium -- Answer ✔✔ 1. superficial layers of dead
cells
2. cells lacking nuclei, filled with keratin
3. cells gradually move toward apical surface, fill with keratin, and die
4. found in epidermis
stratified cuboidal epithelium -- Answer ✔✔ 1. contains two or more layers of cells
2. superficial cells cuboidal in shape
3. mainly protective function
4. forms walls of ducts of most exocrine glands (ducts of sweat glands, strengthens some
sections of male urethra)
stratified columnar epithelium -- Answer ✔✔ 1. two or more layers of cells
2. cells at apical surface columnar in shape
3. protects and secretes
4. found in large ducts of salivary glands
5. found in membranous segment of male urethra
6. relatively rare
True/False: The epithelium of the urethra starts off as transition cells as it exits the
bladder. Further along the urethra there are pseudostratified columnar and stratified
columnar epithelia, then stratified squamous cells near the external urethral orifice --
Answer ✔✔ true
transitional epithelium -- Answer ✔✔ 1. limited to the urinary tract
2. apical cells change shape from large rounded to flattened
3. contains binucleated cells (two nuclei)
4. allows for stretching as bladder fills
QUESTIONS WITH COMPLETE SOLUTIONS
goblet cells -- Answer ✔✔ 1. secrete glycoprotein, mucin
2. forms mucus when mixed with water
Cells organized into more complex units termed _________ -- Answer ✔✔ tissues
What are the four types of tissues? -- Answer ✔✔ 1. epithelial
2. connective
3. muscle
4. nervous
What are three characteristics of tissues -- Answer ✔✔ 1. groups of similar cells and
extracellular material
2. perform a common function, e.g., providing protection
3. the study of tissues termed histology
simple columnar epithelium (ciliated) -- Answer ✔✔ 1. has cilia projecting from apical
surface, move mucus along
2. goblet cells interspersed
,3. bronchioles, uterine tubes (moving oocyte)
Pseudostratified columnar epithelium -- Answer ✔✔ 1. appears to consist of multiple
cell layers
2. not really stratified (nuclei scattered at different distances and not all cells reaching
apical membrane)
3. can be ciliated or nonciliated
ciliated pseudostratified columnar epithelium -- Answer ✔✔ 1. houses goblet cells
2. moves mucus
3. found in large passageways of the respiratory system
nonciliated pseudostratified columnar epithelium -- Answer ✔✔ 1. lacks goblet cells and
celia
2. occurs mainly in male urethra and epididymis (holding immature sperm cells)
stratified squamous epithelium -- Answer ✔✔ 1. protects against abrasion and friction
2. has multiple cell layers
3. stem cells in basal layer that continuously divide
4. exists in nonkeratinized and keratinized forms
nonkeratinized stratified squamous epithelium -- Answer ✔✔ 1. alive all the way to
tissue's apical surface
2. have microscopically visible cell nuclei
3. kept moist with secretions (ex. saliva, mucus)
4. lack keratin, protective protein
5. lining found in oral cavity, part of pharynx, esophagus, vagina, anus
, keratinized stratified squamous epithelium -- Answer ✔✔ 1. superficial layers of dead
cells
2. cells lacking nuclei, filled with keratin
3. cells gradually move toward apical surface, fill with keratin, and die
4. found in epidermis
stratified cuboidal epithelium -- Answer ✔✔ 1. contains two or more layers of cells
2. superficial cells cuboidal in shape
3. mainly protective function
4. forms walls of ducts of most exocrine glands (ducts of sweat glands, strengthens some
sections of male urethra)
stratified columnar epithelium -- Answer ✔✔ 1. two or more layers of cells
2. cells at apical surface columnar in shape
3. protects and secretes
4. found in large ducts of salivary glands
5. found in membranous segment of male urethra
6. relatively rare
True/False: The epithelium of the urethra starts off as transition cells as it exits the
bladder. Further along the urethra there are pseudostratified columnar and stratified
columnar epithelia, then stratified squamous cells near the external urethral orifice --
Answer ✔✔ true
transitional epithelium -- Answer ✔✔ 1. limited to the urinary tract
2. apical cells change shape from large rounded to flattened
3. contains binucleated cells (two nuclei)
4. allows for stretching as bladder fills
