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BIOS255: Comprehensive Review
Part 2 Questions and Answers (100%
Correct Answers) Already Graded A+
Melatonin Ans: Moderates the circadian rhythm and may
impact the onset of puberty.
© 2026 Assignment
Cortisol Ans: Regulates metabolism of glucose and other
fuels.
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Expert
Aldosterone Ans: Stimulates Na+ retention, K+ excretion, and
water reabsorption.
T4 (Thyroxine) Ans: Increases metabolic rate, O2
consumption, and heat production.
Frontal (coronal) Plane Ans: divides the body into anterior
and posterior parts
Brachial Ans: The region of the body that makes up the arm
Proximal Ans: Closer to the attachment of the limb
Distal Ans: Situated away from the center of the body or from
the point of attachment.
Adduction Ans: Movement toward the midline of the body
Enzymes Ans: Biological catalyst that speed up chemical
reactions in living organisms by lowering activation energy
, 2
Acid Ans: A molecule that freely disassociates with water,
resulting in a low pH solution.
Base Ans: a molecule that neutralizes acids
Plasma membrane Ans: best described as a phospholipid
bilayer that control the influx and efflux of chemicals within
the cell
Negative feedback Ans: the process of shivering response to
© 2026 Assignment
cold temperature is example of __________________ mechanism
within the body's homeostatic control system.
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Stratum corneum Ans: Can be described as consisting of up
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to 30 layers of dead, scaly, keratinized cells that are resistant
to abrasion, penetration, and water loss.
Agonist muscle Ans: A muscle that provides the major force
for producing a specific movement.
Isotonic contraction Ans: when a muscle produces limb
motion by shortening, tensions remains the same
Insertion Ans: The moving end of muscle whose tendon
attaches to bone or other structures.
Gastrocnemius and Soleus Ans: They are the primary agonist
muscle group involved in the action of standing on tiptoes.
Sarcomere Ans: The functional, contractile unit of a muscle
fiber.
Muscle Striations Ans: Striations that can be seen in skeletal
and cardiac muscle.
, 3
Sarcolemma Ans: The cell membrane in a skeletal muscle.
Tropomyosin Ans: The molecule that blocks the actin-myosin
binding site in a resting muscle.
Acetylcholine Ans: It is released into the neuromuscular
junction that will subsequently result in a muscle contraction.
Myelin Sheath Ans: Covering the axon increases the
conduction velocity of an action potential
© 2026 Assignment
Schwann Cells Ans: These are the glial cells that form the
myelin sheaths that surround the axons of the neurons in the
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peripheral nervous system.
Expert
Pineal gland Ans: Secretes the hormone melatonin, which
regulates sleep-wake cycles and circadian rhythms
The Pupil Ans: Controls the amount of light entering the eye
by changing its size.
The Chromosome number Ans: The number of chromosomes
in a cell of a given species.
46 Ans: The total chromosomes found in the nuclei of a
normal human somatic cells.
The coxal (hip) Ans: An example of diarthrosis joint
Cranial nerve VII (Facial nerve) Ans: Controls the muscles
involved in facial expression and carries taste sensations from
the anterior two-thirds of the tongue.
Spatial Summation Ans: The summation of postsynaptic
potentials in response to stimuli that occur at different
BIOS255: Comprehensive Review
Part 2 Questions and Answers (100%
Correct Answers) Already Graded A+
Melatonin Ans: Moderates the circadian rhythm and may
impact the onset of puberty.
© 2026 Assignment
Cortisol Ans: Regulates metabolism of glucose and other
fuels.
Guru01 - Stuvia
Expert
Aldosterone Ans: Stimulates Na+ retention, K+ excretion, and
water reabsorption.
T4 (Thyroxine) Ans: Increases metabolic rate, O2
consumption, and heat production.
Frontal (coronal) Plane Ans: divides the body into anterior
and posterior parts
Brachial Ans: The region of the body that makes up the arm
Proximal Ans: Closer to the attachment of the limb
Distal Ans: Situated away from the center of the body or from
the point of attachment.
Adduction Ans: Movement toward the midline of the body
Enzymes Ans: Biological catalyst that speed up chemical
reactions in living organisms by lowering activation energy
, 2
Acid Ans: A molecule that freely disassociates with water,
resulting in a low pH solution.
Base Ans: a molecule that neutralizes acids
Plasma membrane Ans: best described as a phospholipid
bilayer that control the influx and efflux of chemicals within
the cell
Negative feedback Ans: the process of shivering response to
© 2026 Assignment
cold temperature is example of __________________ mechanism
within the body's homeostatic control system.
Guru01 - Stuvia
Stratum corneum Ans: Can be described as consisting of up
Expert
to 30 layers of dead, scaly, keratinized cells that are resistant
to abrasion, penetration, and water loss.
Agonist muscle Ans: A muscle that provides the major force
for producing a specific movement.
Isotonic contraction Ans: when a muscle produces limb
motion by shortening, tensions remains the same
Insertion Ans: The moving end of muscle whose tendon
attaches to bone or other structures.
Gastrocnemius and Soleus Ans: They are the primary agonist
muscle group involved in the action of standing on tiptoes.
Sarcomere Ans: The functional, contractile unit of a muscle
fiber.
Muscle Striations Ans: Striations that can be seen in skeletal
and cardiac muscle.
, 3
Sarcolemma Ans: The cell membrane in a skeletal muscle.
Tropomyosin Ans: The molecule that blocks the actin-myosin
binding site in a resting muscle.
Acetylcholine Ans: It is released into the neuromuscular
junction that will subsequently result in a muscle contraction.
Myelin Sheath Ans: Covering the axon increases the
conduction velocity of an action potential
© 2026 Assignment
Schwann Cells Ans: These are the glial cells that form the
myelin sheaths that surround the axons of the neurons in the
Guru01 - Stuvia
peripheral nervous system.
Expert
Pineal gland Ans: Secretes the hormone melatonin, which
regulates sleep-wake cycles and circadian rhythms
The Pupil Ans: Controls the amount of light entering the eye
by changing its size.
The Chromosome number Ans: The number of chromosomes
in a cell of a given species.
46 Ans: The total chromosomes found in the nuclei of a
normal human somatic cells.
The coxal (hip) Ans: An example of diarthrosis joint
Cranial nerve VII (Facial nerve) Ans: Controls the muscles
involved in facial expression and carries taste sensations from
the anterior two-thirds of the tongue.
Spatial Summation Ans: The summation of postsynaptic
potentials in response to stimuli that occur at different
