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Babler Extra Credit Exam Complete Questions And Answers | verified
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Babler Extra Credit Exam CompleteQuestions And Answers | verified
Which of the following organelles of the cell is closest in proximity to the nucleus?
A. Endoplasmic Reticulum
B. Golgi Apparatus
C. Lysosome
D. Mitochondria CORRECT ANSWERS A. Endoplasmic Reticulum
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
D. Lipid Rafts CORRECT ANSWERS B. Cytosol
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 ANSWERS C. Nucleolus
Which organelle of the cell would be present in large numbers in cells requiring large
amounts of energy? CORRECT ANSWERS Mitochondria
The mechanism by which a bacterium is brought into a cell is called CORRECT
ANSWERS Phagocytosis
A problem involving a hormone being recognized by a receptor most likely involves
A. Cholesterol molecules
B. Integral proteins
C. Lysosomes
D. Pinocytosis CORRECT ANSWERS B. Integral Proteins
The mechanism by which extracellular fluid is brought into a cell is called
A. Exocytosis
B. Phagocytosis
C. Pinocytosis
D. Receptor mediated endocytosis CORRECT ANSWERS C. Pinocytosis
Transport vesicles carry proteins to what organelle to complete posttranslational
modifications
A. Golgi Apparatus
,B. Mitochondria
C. Rough endoplasmic reticulum
D. Smooth endoplasmic reticulum CORRECT ANSWERS A. Golgi apparatus
The network of microfilaments that form a sheath beneath the plasmalemma is formed
from
A. Actin
B. Keratin
C. Lamin
D. Vimentin CORRECT ANSWERS A. Actin
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 ANSWERS A. Golgi Apparatus
All the following are functions of the plasmalemma of a cell EXCEPT one. The
EXCEPTION is:
A. Communication via receptors
B. Provides a flexible boundary that protects the contents of the cell
C. Regulates entry and exit of materials into and from the cell
D. Regulates transport between the cytoplasm and nucleus
E. Separates substances outside the cell from those within the cell CORRECT
ANSWERS D. Regulates transport between the cytoplasm and nucleus
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 ANSWERS D. receptor mediated
endocytosis
Aerobic respiration of a cell occurs in what organelle?
A. golgi apparatus
B. mitochondria
C. rough endoplasmic reticulum
D. smooth endoplasmic reticulum CORRECT ANSWERS B. mitochondria
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 ANSWERS 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 ANSWERS D. Type IV collagen
All the following statements about an epithelium are TRUE EXCEPT ONE. Which one is
the EXCEPTION?
A. Is avascular
B. Has a free surface
C. Has a limited capacity for cells to divide
D. Has nerve fibers
E. Has no or very little extracellular material CORRECT ANSWERS C. has a limited
capacity for cells to divide.
A free surface specialization that moves mucous in the trachea is the..
A. Basal lamina
B. cilia
C. microvilli
D. stereocilia CORRECT ANSWERS B. cilia
Which type of gland is associated with a blind sac for a lumen?
A. acinar
B. tubular
C. unicellular CORRECT ANSWERS A. acinar
The cells that line the acinar portion of a gland are most likely to be classified as:
A. cuboidal epithelium
B. fibroblasts
C. masts
D. squamous epithelium CORRECT ANSWERS A. cuboidal epithelium
The type of gland which has no duct is the
A. endocrine gland
B. exocrine gland CORRECT ANSWERS A. endocrine
The intercellular connection or junction that binds an epithelial cell to the basal lamina is
termed:
A. anchoring junction
B. desmosome
C. hemidesmosome
D. tight junction CORRECT ANSWERS C. hemidesmosome
Connexons are a part of what type of intercellular junctions?
A. desmosome
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