BIOL 235 MIDTERM 2 Questions and
correct verified Answers Biology 100%
verified | LATEST |update| Brand New
Q&As RATED A+ GRADE
2026/2027 Frequently Most Tested Questions and
100% Accurate From Past papers | Graded A+ ,
Reviewed and Updated | 100% Guarantee Pass | Latest
Exam and Newest Version!!!
The attachment of a muscle's tendon to the stationary bone is called the _____; the
attachment of the muscle's other tendon to the movable bone is called the _____.
a. Origin, action
b. Insertion, action
c. Origin, insertion
d. Insertion, origin
e. Insertion, action
✔️ Correct Answer: C
Rationale: The origin is the attachment of a muscle's tendon to the stationary (fixed)
bone, while the insertion is the attachment to the movable bone. During contraction,
the muscle pulls the insertion toward the origin. "Action" (Options A, B, E) refers to the
movement produced, not the attachment site. Option D reverses the correct
terminology.
Most muscles cross at least one:
,a. Tendon
b. Joint
c. Bone
d. Ligament
e. Body plane
✔️ Correct Answer: B
Rationale: Most muscles cross at least one joint, allowing movement to occur at that
joint when the muscle contracts. Tendons (Option A) connect muscle to bone. Bones
(Option C) are the levers. Ligaments (Option D) connect bone to bone. Body planes
(Option E) are anatomical references.
Motion will occur in a muscle when the _____ supplied exceeds the _____.
a. Effort, load
b. Resistance, lever
c. Load, effort
d. Load, resistance
e. Lever, effort
✔️ Correct Answer: A
Rationale: For motion to occur, the effort (force generated by muscle contraction) must
exceed the load (resistance to be moved). Option B reverses these concepts. Options C
and D incorrectly place load before effort. Option E incorrectly identifies lever as a force.
A lever is acted on at two different points by two different forces which are called the:
a. Fulcrum and resistance
b. Leverage and load
c. Lever and resistance
d. Effort and load
e. Lever and effort
✔️ Correct Answer: D
Rationale: A lever is acted upon by two forces: effort (the force applied) and load (the
, resistance to be overcome). The fulcrum (Option A) is the pivot point, not a force.
Leverage (Option B) is not a force. Options C and E incorrectly identify the lever as a
force.
With reference to the effort and load, describe the main difference between a lever
operating with a mechanical advantage versus a lever operating at a mechanical
disadvantage.
Rationale: Mechanical advantage occurs when the load is placed closer to the fulcrum,
requiring less effort to move the load. Mechanical disadvantage occurs when the load is
placed farther from the fulcrum, requiring more effort to be exerted to move the load.
In mechanical advantage, effort < load; in mechanical disadvantage, effort > load.
Briefly describe the three categories of levers based on the position of their fulcrum.
Give an example of each type of lever and state whether the lever works at a mechanical
advantage, disadvantage, or both.
Rationale:
First-class lever: Fulcrum is between effort and load (e.g., scissors). Can function at
mechanical advantage or disadvantage depending on the relative positions of effort
and load.
Second-class lever: Load is between fulcrum and effort (e.g., wheelbarrow). Always
functions at mechanical advantage because the load is closer to the fulcrum.
Third-class lever: Effort is between fulcrum and load (e.g., forceps/tweezers). Always
functions at mechanical disadvantage because effort is closer to the fulcrum.
This type of fascicle arrangement has the fascicles spread over a broad area and
converges at a thick central tendon.
a. Triangular
b. Pennate
correct verified Answers Biology 100%
verified | LATEST |update| Brand New
Q&As RATED A+ GRADE
2026/2027 Frequently Most Tested Questions and
100% Accurate From Past papers | Graded A+ ,
Reviewed and Updated | 100% Guarantee Pass | Latest
Exam and Newest Version!!!
The attachment of a muscle's tendon to the stationary bone is called the _____; the
attachment of the muscle's other tendon to the movable bone is called the _____.
a. Origin, action
b. Insertion, action
c. Origin, insertion
d. Insertion, origin
e. Insertion, action
✔️ Correct Answer: C
Rationale: The origin is the attachment of a muscle's tendon to the stationary (fixed)
bone, while the insertion is the attachment to the movable bone. During contraction,
the muscle pulls the insertion toward the origin. "Action" (Options A, B, E) refers to the
movement produced, not the attachment site. Option D reverses the correct
terminology.
Most muscles cross at least one:
,a. Tendon
b. Joint
c. Bone
d. Ligament
e. Body plane
✔️ Correct Answer: B
Rationale: Most muscles cross at least one joint, allowing movement to occur at that
joint when the muscle contracts. Tendons (Option A) connect muscle to bone. Bones
(Option C) are the levers. Ligaments (Option D) connect bone to bone. Body planes
(Option E) are anatomical references.
Motion will occur in a muscle when the _____ supplied exceeds the _____.
a. Effort, load
b. Resistance, lever
c. Load, effort
d. Load, resistance
e. Lever, effort
✔️ Correct Answer: A
Rationale: For motion to occur, the effort (force generated by muscle contraction) must
exceed the load (resistance to be moved). Option B reverses these concepts. Options C
and D incorrectly place load before effort. Option E incorrectly identifies lever as a force.
A lever is acted on at two different points by two different forces which are called the:
a. Fulcrum and resistance
b. Leverage and load
c. Lever and resistance
d. Effort and load
e. Lever and effort
✔️ Correct Answer: D
Rationale: A lever is acted upon by two forces: effort (the force applied) and load (the
, resistance to be overcome). The fulcrum (Option A) is the pivot point, not a force.
Leverage (Option B) is not a force. Options C and E incorrectly identify the lever as a
force.
With reference to the effort and load, describe the main difference between a lever
operating with a mechanical advantage versus a lever operating at a mechanical
disadvantage.
Rationale: Mechanical advantage occurs when the load is placed closer to the fulcrum,
requiring less effort to move the load. Mechanical disadvantage occurs when the load is
placed farther from the fulcrum, requiring more effort to be exerted to move the load.
In mechanical advantage, effort < load; in mechanical disadvantage, effort > load.
Briefly describe the three categories of levers based on the position of their fulcrum.
Give an example of each type of lever and state whether the lever works at a mechanical
advantage, disadvantage, or both.
Rationale:
First-class lever: Fulcrum is between effort and load (e.g., scissors). Can function at
mechanical advantage or disadvantage depending on the relative positions of effort
and load.
Second-class lever: Load is between fulcrum and effort (e.g., wheelbarrow). Always
functions at mechanical advantage because the load is closer to the fulcrum.
Third-class lever: Effort is between fulcrum and load (e.g., forceps/tweezers). Always
functions at mechanical disadvantage because effort is closer to the fulcrum.
This type of fascicle arrangement has the fascicles spread over a broad area and
converges at a thick central tendon.
a. Triangular
b. Pennate
