BIOS 252 COMP EXAM WITH CORRECT SOLUTIONS
(2026-2027 UPDATED) GRADED A+
1. When compared to a classic lever system, the synovial joints of our Musculoskeletal
system play the role of the _________?
A. Weight
B. Force
C. Fulcrum
D. Lever
E. Resistance - ANSWER-C. Fulcrum.
2. Which of the following event will occur when depolarizing graded potential's reach the
membrane of the axon Hillock, causing its membrane potential to reach threshold?
A. Ligand-gated Ca++ channels close rapidly
B. Voltage-gated Ca++ channels open rapidly
C. Ligand-gated Na+ channels close rapidly
D. Voltage-gated Na+ channels open rapidly
E. Ligand-gated Cl+ channels close rapidly - ANSWER-D. Voltage-gated Na+
channels open rapidly.
3. The attachment of the muscles tendon to the stationary bone is called the
_________? ; The attachment of the muscles other tendon to the movable bone is
called the__________?
A. Origin ; action
B. Insertion ; action
C. Origin ; insertion
D. Stabilizer ; mover
E. Insertion ; origin - ANSWER-C. Origin ; Insertion
, 4. Which of the following fascicular arrangements would best be described as fascicles
arranged on only one side of the tendon?
A. Unipennate
B. Bipennate
C. Fusiform
D. Circular
E. Multipennate - ANSWER-A. Unipennate
5. Which type of synapse involves the secretion of a neurotransmitter across the synapse
to stimulate the post-synaptic cell?
A. Mechanical
B. Nominal
C. Electrotonic
D. Processing
E. Chemical - ANSWER-E. Chemical
6. Your friend nods 'yes' to you, going through flexion, extension, and hyper extension in
their enthusiastic response. This movement at the fulcrum represents a
A. First-class lever system
B. Second-class lever system
C. Third-class lever system
D. Fourth-class lever system
E. Does not represent a lever system - ANSWER-A. First-class lever system
7. The sarcoplasmic reticulum stores
A. Oxygen
(2026-2027 UPDATED) GRADED A+
1. When compared to a classic lever system, the synovial joints of our Musculoskeletal
system play the role of the _________?
A. Weight
B. Force
C. Fulcrum
D. Lever
E. Resistance - ANSWER-C. Fulcrum.
2. Which of the following event will occur when depolarizing graded potential's reach the
membrane of the axon Hillock, causing its membrane potential to reach threshold?
A. Ligand-gated Ca++ channels close rapidly
B. Voltage-gated Ca++ channels open rapidly
C. Ligand-gated Na+ channels close rapidly
D. Voltage-gated Na+ channels open rapidly
E. Ligand-gated Cl+ channels close rapidly - ANSWER-D. Voltage-gated Na+
channels open rapidly.
3. The attachment of the muscles tendon to the stationary bone is called the
_________? ; The attachment of the muscles other tendon to the movable bone is
called the__________?
A. Origin ; action
B. Insertion ; action
C. Origin ; insertion
D. Stabilizer ; mover
E. Insertion ; origin - ANSWER-C. Origin ; Insertion
, 4. Which of the following fascicular arrangements would best be described as fascicles
arranged on only one side of the tendon?
A. Unipennate
B. Bipennate
C. Fusiform
D. Circular
E. Multipennate - ANSWER-A. Unipennate
5. Which type of synapse involves the secretion of a neurotransmitter across the synapse
to stimulate the post-synaptic cell?
A. Mechanical
B. Nominal
C. Electrotonic
D. Processing
E. Chemical - ANSWER-E. Chemical
6. Your friend nods 'yes' to you, going through flexion, extension, and hyper extension in
their enthusiastic response. This movement at the fulcrum represents a
A. First-class lever system
B. Second-class lever system
C. Third-class lever system
D. Fourth-class lever system
E. Does not represent a lever system - ANSWER-A. First-class lever system
7. The sarcoplasmic reticulum stores
A. Oxygen
