BIO 446L - Final Exam Test Bank(250+ questions and correct answers)
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Course
BIO 446L
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BIO 446L
BIO 446L - Final Exam Test Bank(250+ questions and correct answers)/BIO 446L - Final Exam Test Bank(250+ questions and correct answers)/BIO 446L - Final Exam Test Bank(250+ questions and correct answers)
BIO 446L - Final Exam Test Bank
A cell that is actively synthesizing proteins or is located with a rapidly growing
tumor is characterized by a large
a)Actin microfiber
b) Nuclear pore
c) Nucleolus
d) Smooth ER - correct answer c) Nucleolus
Concentrations of integral and peripheral proteins that function in large enzyme
complexes are located in the:
a) Golgi apparatus
b) Lipid rafts
c) Nucleolus
d) Rough endoplasmic reticulum - correct answer b) Lipid rafts
Which of the following organelles of the cell initiates packing, concentration and
storage of secretory products by secretory vesicles?
a) Golgi apparatus
b) Mitochondria
c) Rough endoplasmic reticulum
d) Smooth endoplasmic reticulum - correct answer a) Golgi apparatus
The mechanism by which a ligand attaches to an integral protein to trigger an
action of the cell is called:
a) Exocytosis
b) Phagocytosis
c) Pinocytosis
d) Receptor mediated endocytosis - correct answer d) Receptor mediated
endocytosis
Which of the following cellular structures is an intermediate filament?
,BIO 446L - Final Exam Test Bank
a) Actin
b) Glycoprotein
c) Microtubules
d) Vimentin - correct answer d) Vimentin
The microfilaments that form a framework within a microvillus is formed by
a) Actin
b) Keratins
c) Lamins
d) Vimentin - correct answer a) Actin
The mechanism by which a bacterium is brought into a cell is called
a) Exocytosis
b) Phagocytosis
c) Pinocytosis
d) Receptor mediated endocytosis - correct answer b) Phagocytosis
Which organelle of the cell would be present in large numbers in cells requiring
large amounts of energy?
a) Endoplasmic reticulum
b) Golgi apparatus
c) Lysosome
d) Mitochondria - correct answer d) Mitochondria
All the following structures can be located within the plasmalemma of a cell
EXCEPT ONE. The EXCEPTION is:
a) Cholesterol
b) Cytosol
c) Integral proteins
,BIO 446L - Final Exam Test Bank
d) Lipid rafts - correct answer b) Cytosol
Which of the following types of epithelia has cells that are flat on the surface but
cuboidal in the basal layer?
a) Pseudostratified columnar
b) Stratified cuboidal
c) Stratified squamous - correct answer c) Stratified squamous
The basal lamina is composed of glycoproteins (laminin and entactin) and
a) Type I collagen
b) Type II collagen
c) Type III collagen
d) Type IV collagen - correct answer d) Type IV collagen
Which of the following types of epithelium secrete tears?
a) Simple cuboidal
b) Simple squamous
c) Stratified columnar
d) Stratified squamous - correct answer a) Simple cuboidal
A free surface specialization only found on hair cells of the inner ear and in
epididymis of male reproductive system is:
a) Cilia
b) Microvilli
c) Stereocilia - correct answer c) Stereocilia
Which of the following types of epithelia allows active and passive movement of
substances (eg. gases) through tissue?
a) Pseudostratified columnar
b) Simple columnar
, BIO 446L - Final Exam Test Bank
c) Simple squamous
d) Stratified cuboidal
e) Stratified squamous - correct answer c) Simple squamous
The intercellular connection or junction that binds an epithelial cell to the basal
lamina is termed
Anchoring junction
Desmosome
Hemidesmosome
Tight junction - correct answer Hemidesmosome
The cells that line the acinar portion of a gland are most likely to be classified as:
Cuboidal epithelial
Fibroblasts
Masts
Squamous epithelial - correct answer Cuboidal epithelial
Connexons are a part of what type of intercellular junctions?
Desmosome
Gap
Hemidesmosome
Zonula adherens - correct answer Gap
The unicellular merocrine glands typically produce what type of secretion?
Mucous
Serous - correct answer Mucous
A gland with a long duct most likely would produce what type of secretion?
Mucous
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