BIOS 252 COMP EXAM QUESTIONS AND ANSWERS
100% PASS
When compared to a classic lever system, the synovial joints of our Musculoskeletal system play the role of the
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_________?
bv
A. Weight
bv
B. Force
bv
C. Fulcrum
bv bv
D. Lever
bv
E. Resistance - Answer ✔✔ - C. Fulcrum.
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Which of the following event will occur when depolarizing graded potential's reach the membrane of the axon Hilloc
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causing its membrane potential to reach threshold?
bv bv bv bv bv bv bv
A. Ligand-gated Ca++ channels close rapidly
bv bv bv bv bv
B. Voltage-gated Ca++ channels open rapidly
bv bv bv bv bv bv
C. Ligand-gated Na+ channels close rapidly
bv bv bv bv bv
D. Voltage-gated Na+ channels open rapidly
bv bv bv bv bv bv
E. Ligand-gated Cl+ channels close rapidly - Answer ✔✔ - D. Voltage-gated Na+ channels open rapidly.
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The attachment of the muscles tendon to the stationary bone is called the _________? ; The attachment of the
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muscles other tendon to the movable bone is called the__________?
bv bv bv bv bv bv bv bv bv bv bv
A. Origin ; action
bv bv bv
B. Insertion ; action
bv bv bv bv
C. Origin ; insertion
bv bv bv
D. Stabilizer ; mover
bv bv bv bv
E. Insertion ; origin - Answer ✔✔ - C. Origin ; Insertion
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Which of the following fascicular arrangements would best be described as fascicles arranged on only one side of t
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tendon?
bv
A. Unipennate
bv
B. Bipennate
bv
C. Fusiform
bv
D. Circular
bv
E. Multipennate - Answer ✔✔ - A. Unipennate
bv bv bv bv bv bv bv bv bv
Which type of synapse involves the secretion of a neurotransmitter across the synapse to stimulate the post-synap
bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv
cell?
bv
A. Mechanical
bv bv
B. Nominal
bv
1 / bvbv
9
,C. Electrotonic bv
D. Processing bv
E. Chemical - Answer ✔✔ - E. Chemical
bv bv bv bv bv bv bv bv bv
Your friend nods 'yes' to you, going through flexion, extension, and hyper extension in their enthusiastic response.
bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv
This movement at the fulcrum represents a
bv bv bv bv bv bv bv bv
A. First-class lever system
bv bv bv
B. Second-class lever system
bv bv bv bv
C. Third-class lever system
bv bv bv bv
D. Fourth-class lever system
bv bv bv bv
E. Does not represent a lever system - Answer ✔✔ - A. First-class lever system
bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv
The sarcoplasmic reticulum stores bv bv bv bv
A. Oxygen bv
B. Glycogen bv
C. ATP bv
D. Calcium ions bv bv bv
E. Glucose - Answer ✔✔ - D. Calcium ions
bv bv bv bv bv bv bv bv bv bv
Which of the following is NOT a function of smooth muscle tissue?
bv bv bv bv bv bv bv bv bv bv bv
A. Altering the diameter of the respiratory passageways
bv bv bv bv bv bv bv bv
B. Elevating hairs on the arm
bv bv bv bv bv bv
C. Blinking the eyelid bv bv bv bv
D. Moving food materials along the digestive tract
bv bv bv bv bv bv bv bv
E. Moving urine from the kidneys into the bladder - Answer ✔✔ - C. Blinking the eyelid
bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv
In an isometric contraction, the ,uncle develops tension but does not?
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A. Shorten bv
B. Lengthen bv
C. Expend energy bv bv
D. Conduct electrical current
bv bv bv
E. Exhibit elasticity - Answer ✔✔ - A. Shorten
bv bv bv bv bv bv bv bv bv bv
_________ is the summation of postsynaptic potentials in response to stimuli that occur at different locations in the
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membrane of a postsynaptic cell at the same time
bv bv bv bv bv bv bv bv bv
A. Cortical summation bv bv bv
B. Spatial summation bv bv bv
C. Temporal summation bv bv
D. Tactile summation bv bv
E. Olfactory summation - Answer ✔✔ - B. Spatial summation
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Which of the following molecules energizes the myosin club-head so that it can pull the actin molecule?
bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv
A. Troponin bv bv
B. Tropomyosin bv
2 / bvbv
9
100% PASS
When compared to a classic lever system, the synovial joints of our Musculoskeletal system play the role of the
bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv
_________?
bv
A. Weight
bv
B. Force
bv
C. Fulcrum
bv bv
D. Lever
bv
E. Resistance - Answer ✔✔ - C. Fulcrum.
bv bv bv bv bv bv bv bv bv
Which of the following event will occur when depolarizing graded potential's reach the membrane of the axon Hilloc
bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv
causing its membrane potential to reach threshold?
bv bv bv bv bv bv bv
A. Ligand-gated Ca++ channels close rapidly
bv bv bv bv bv
B. Voltage-gated Ca++ channels open rapidly
bv bv bv bv bv bv
C. Ligand-gated Na+ channels close rapidly
bv bv bv bv bv
D. Voltage-gated Na+ channels open rapidly
bv bv bv bv bv bv
E. Ligand-gated Cl+ channels close rapidly - Answer ✔✔ - D. Voltage-gated Na+ channels open rapidly.
bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv
The attachment of the muscles tendon to the stationary bone is called the _________? ; The attachment of the
bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv
muscles other tendon to the movable bone is called the__________?
bv bv bv bv bv bv bv bv bv bv bv
A. Origin ; action
bv bv bv
B. Insertion ; action
bv bv bv bv
C. Origin ; insertion
bv bv bv
D. Stabilizer ; mover
bv bv bv bv
E. Insertion ; origin - Answer ✔✔ - C. Origin ; Insertion
bv bv bv bv bv bv bv bv bv bv bv bv bv
Which of the following fascicular arrangements would best be described as fascicles arranged on only one side of t
bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv
tendon?
bv
A. Unipennate
bv
B. Bipennate
bv
C. Fusiform
bv
D. Circular
bv
E. Multipennate - Answer ✔✔ - A. Unipennate
bv bv bv bv bv bv bv bv bv
Which type of synapse involves the secretion of a neurotransmitter across the synapse to stimulate the post-synap
bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv
cell?
bv
A. Mechanical
bv bv
B. Nominal
bv
1 / bvbv
9
,C. Electrotonic bv
D. Processing bv
E. Chemical - Answer ✔✔ - E. Chemical
bv bv bv bv bv bv bv bv bv
Your friend nods 'yes' to you, going through flexion, extension, and hyper extension in their enthusiastic response.
bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv
This movement at the fulcrum represents a
bv bv bv bv bv bv bv bv
A. First-class lever system
bv bv bv
B. Second-class lever system
bv bv bv bv
C. Third-class lever system
bv bv bv bv
D. Fourth-class lever system
bv bv bv bv
E. Does not represent a lever system - Answer ✔✔ - A. First-class lever system
bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv
The sarcoplasmic reticulum stores bv bv bv bv
A. Oxygen bv
B. Glycogen bv
C. ATP bv
D. Calcium ions bv bv bv
E. Glucose - Answer ✔✔ - D. Calcium ions
bv bv bv bv bv bv bv bv bv bv
Which of the following is NOT a function of smooth muscle tissue?
bv bv bv bv bv bv bv bv bv bv bv
A. Altering the diameter of the respiratory passageways
bv bv bv bv bv bv bv bv
B. Elevating hairs on the arm
bv bv bv bv bv bv
C. Blinking the eyelid bv bv bv bv
D. Moving food materials along the digestive tract
bv bv bv bv bv bv bv bv
E. Moving urine from the kidneys into the bladder - Answer ✔✔ - C. Blinking the eyelid
bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv
In an isometric contraction, the ,uncle develops tension but does not?
bv bv bv bv bv bv bv bv bv bv
A. Shorten bv
B. Lengthen bv
C. Expend energy bv bv
D. Conduct electrical current
bv bv bv
E. Exhibit elasticity - Answer ✔✔ - A. Shorten
bv bv bv bv bv bv bv bv bv bv
_________ is the summation of postsynaptic potentials in response to stimuli that occur at different locations in the
bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv
membrane of a postsynaptic cell at the same time
bv bv bv bv bv bv bv bv bv
A. Cortical summation bv bv bv
B. Spatial summation bv bv bv
C. Temporal summation bv bv
D. Tactile summation bv bv
E. Olfactory summation - Answer ✔✔ - B. Spatial summation
bv bv bv bv bv bv bv bv bv bv bv
Which of the following molecules energizes the myosin club-head so that it can pull the actin molecule?
bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv bv
A. Troponin bv bv
B. Tropomyosin bv
2 / bvbv
9
