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Amar Telidji-Laghouat University era 1 Faculty of Medicine May 24, 2023
year of medicine
Medium-Term Cytology and Cell Physiology Test (S2)
Duration: 1h30
CORRECTION TYPE
Part 1: (0.5X10 = 5 points)
Answer true (T) or false (F) (correct the false statement) V/F
For AQP2 transporters to open, the hormone ADH must first bind to receptors located on the basal F
1
pole of the proximal convoluted tubule of the nephron.
ADH receptors are located at the basal pole of the collecting duct of the nephron
2 Inflammatory processes and platelet aggregation always use molecules V
of adhesion.
The constituents of loose connective tissue are synthesized by the epithelial cells located just above it F
3
The constituents of loose connective tissue are synthesized by fibroblasts, present in the connective
tissue itself
During endocytosis, intermediate filaments, microtubules and dynein are involved. F
4
During endocytosis, actin filaments, microtubules and dynein are involved.
The plasma membrane exhibits selective permeability, meaning that it only allows the passage of F
5 small, non-polar molecules.
The plasma membrane exhibits selective permeability, meaning that it allows the passage of certain
molecules while preventing others.
Hepatitis B virus entry into target cells occurs through clathrin-dependent receptor-mediated endocytosis. F
6
The entry of the hepatitis B virus into target cells is by caveolin-dependent receptor endocytosis
(Alternative correction: …….of hepatitis C …………………..clathrin)
7 The junctional complex is the succession of three junctions: Zonula occludens, Zonula adherens V
and Macula adherens
The elements of the cytoskeleton are found in the hyaloplasm, nucleoplasm and plasma membrane F
8
The elements of the cytoskeleton are found in the hyaloplasm, nucleoplasm and under the plasma
membrane
The absence of calcium does not allow the interaction of cadherins carried by the extracellular domain F
9 of the Zonula occludens junctions.
The absence of calcium does not allow the interaction of cadherins carried by the extracellular domain
of the Zonula adherens junctions.
In fat cells, all GLUT4 transporters are localized at the plasma membrane F
10
In adipose cells, 10% of GLUT4 is localized in the MP, the remaining 90% is localized in small
intracytoplasmic vesicles
Part 2: (0.5x10 = 5 points): Tick the correct answer (QCS)
1. Simple diffusion across the plasma membrane (only one statement is false):
A. Is a passive transport
B. Is a direct and slow transport
C. Proceeds from most concentrated to least concentrated
D. The water molecule cannot pass through this mode of transport X
1/4
Amar Telidji-Laghouat University era 1 Faculty of Medicine May 24, 2023
year of medicine
Medium-Term Cytology and Cell Physiology Test (S2)
Duration: 1h30
CORRECTION TYPE
Part 1: (0.5X10 = 5 points)
Answer true (T) or false (F) (correct the false statement) V/F
For AQP2 transporters to open, the hormone ADH must first bind to receptors located on the basal F
1
pole of the proximal convoluted tubule of the nephron.
ADH receptors are located at the basal pole of the collecting duct of the nephron
2 Inflammatory processes and platelet aggregation always use molecules V
of adhesion.
The constituents of loose connective tissue are synthesized by the epithelial cells located just above it F
3
The constituents of loose connective tissue are synthesized by fibroblasts, present in the connective
tissue itself
During endocytosis, intermediate filaments, microtubules and dynein are involved. F
4
During endocytosis, actin filaments, microtubules and dynein are involved.
The plasma membrane exhibits selective permeability, meaning that it only allows the passage of F
5 small, non-polar molecules.
The plasma membrane exhibits selective permeability, meaning that it allows the passage of certain
molecules while preventing others.
Hepatitis B virus entry into target cells occurs through clathrin-dependent receptor-mediated endocytosis. F
6
The entry of the hepatitis B virus into target cells is by caveolin-dependent receptor endocytosis
(Alternative correction: …….of hepatitis C …………………..clathrin)
7 The junctional complex is the succession of three junctions: Zonula occludens, Zonula adherens V
and Macula adherens
The elements of the cytoskeleton are found in the hyaloplasm, nucleoplasm and plasma membrane F
8
The elements of the cytoskeleton are found in the hyaloplasm, nucleoplasm and under the plasma
membrane
The absence of calcium does not allow the interaction of cadherins carried by the extracellular domain F
9 of the Zonula occludens junctions.
The absence of calcium does not allow the interaction of cadherins carried by the extracellular domain
of the Zonula adherens junctions.
In fat cells, all GLUT4 transporters are localized at the plasma membrane F
10
In adipose cells, 10% of GLUT4 is localized in the MP, the remaining 90% is localized in small
intracytoplasmic vesicles
Part 2: (0.5x10 = 5 points): Tick the correct answer (QCS)
1. Simple diffusion across the plasma membrane (only one statement is false):
A. Is a passive transport
B. Is a direct and slow transport
C. Proceeds from most concentrated to least concentrated
D. The water molecule cannot pass through this mode of transport X
1/4
