Problem:
Please Answer all or majority!
Question 1: Specialized hair cells that contain special actin-rich sensory structures called __________ are located in the eye and the nose These cilia have a _____ arrangement
A) connecting cilia; " 9+2" arrangement
B) primary cilia; " 9+0" arrangement
C) stereocilia; "9+2"
D) undulipodia "9+4"
E) seondary cilia; "9+2" arrangement
Question 2: To carry out their function, kinesin family proteins must attach to their respective
A) dynein.
B) cargo.
C) adaptor proteins.
D) only choices B and C
E) choices A, B, and C
Question 3: The neuromuscular junction is incorrectly described in which of the following statements?
A) Neurotransmitters are stored in vesicles in the axon terminal.
B) The sarcolemma is the plasma membrane of a muscle cell.
C) Acetylcholine release is triggered by release of Cl- ion
D) T tubules carry action potentials into the muscle cell.
E) Acetylcholine binding allows sodium ions to enter the muscle cell.
Question 4: Which of the following characteristics is not associated with cardiac muscle?
A) intercalated discs
B) contracts spontaneously
C) involuntary contractions
D) lack of actin
E) striations
Question 5: Which of the following cell junctions are associated with the proper alignment of intestinal epithelial cells?
A) gap junctions
B) adhesive junctions
C) tight junctions
D) desmosomes
E) all of the above
Question 6: In animal cells, the extracellular matrix plays important roles in all of the following processes except
A) cell division.
B) motility.
C) DNA replication.
D) differentiation.
E) adhesion.
Question 7: Which of the following is not associated with adhesive junctions?
A) desmosomes
B) hemidesmosomes
C) plaques
D) connexin
E) cadherins
Question 8: Which of the following activities is not associated with cadherins?
A) segregation of cells to specific tissues
B) intracellular transport
C) embryonic development
D) establishment of synaptic connections
E) loss of activity associated with cancer
Question 9: A patient is rushed to the emergency room and immediately needs a blood transfusion. The patient is found to have only anti-A antibodies in circulation. The blood type of this individual must be
A) A.
B) B.
C) AB.
D) O
E) Cannot be determined
Question 10: Paracellular transport is associated with which of the following?
A) adherens junctions
B) integrins
C) desmosomes
D) tight junctions
E) hemidesmosomes
Question 11: You are investigating cell localization by targeting the carbohydrates associated with various cell types. Based on this molecule's ability to bind various carbohydrates, which of the following would help determine which carbohydrates are found on the cell surface?
A) cadherins
B) proteoglycans
C) pectins
D) connexins
E) lectins
Question 12: Which of the following is not associated with the basal lamina?
A) serves as a structural support
B) allows for movement of some small molecules
C) can influence cell migrations in certain areas of the body
D) contains collagen type IV, proteoglycans, laminins, and entactin
E) contains a network of actin filament
Question 13: Claudins are associated with which of the following types of cellular junctions?
A) gap junctions
B) tight junctions
C) plasmodesmata
D) adhesive junctions
E) none of the above
Question 14: Connexons are associated with which of the following types of cellular junctions?
A) gap junctions
B) tight junctions
C) plasmodesmata
D) adhesive junctions
E) none of the above
Question 15: The molecule of the extracellular matrix of animal cells that is associated with joint lubrication and friction reduction is
A) glycosaminoglycan.
B) proteoglycan.
C) hyaluronate.
D) pectin.
E) fibronectin.
Question 16: The type of cellular junction prominent in the kidney is the
A) plasmodesmata.
B) gap junction.
C) adhesive junction.
D) tight junction.
E) laminin junction.
Question 17: In performing research, you treat frog zygotes with antibodies that bind E-cadherin. As a result, you expect
A) the cells to become exclusively muscle tissue.
B) the cells to be loosely associated and abort development.
C) the cells to be loosely associated and develop into a novel strain of frog.
D) the cells to divide uncontrollably. E) no change with regard to development.
Question 18: Hemidesomes connects a cell to ________ outside the cell and to ________ inside the cell
A) another cell, actin filament
B) another cell, intermediate filament
C) the basal lamina, actin filament
D) the basal lamina, intermediate filament
E) all of the above are correct
Question 19: Which of the following molecules help white blood cells attach to the endothelial wall ?
A) P-selectin
B) E-selectin
C) connexin
D) claudins
E) both A and B
Question 20: Which of the following are primarily responsible to binding cells to the extracellular matrix and guiding cellular movement?
A) collagen
B) elastin
C) fibronectin
D) integrin
E) desmoplakin
Give reasoning with your answer.