REAL QUESTIONS AND VERIFIED ANSWERS
(2026-2027 EDITION)
This comprehensive question study bank delivers 100%
verified multiple-choice questions designed to mirror the
exact structure and difficulty of the Ivy Tech APHY 101 Final
Exam. Every question is paired with a direct answer and a
comprehensive, high-yield rationale to reinforce complex
concepts in histology, cell metabolism, and the nervous
system. Perfect for quick revision, this premium guide
guarantees mastery of key learning modules to help you
score an A on your final test.
Which type of epithelial tissue consists of a single layer of flattened
cells and is specialized for filtration and diffusion?
A) Simple cuboidal epithelium
B) Simple squamous epithelium
C) Stratified squamous epithelium
D) Pseudostratified columnar epithelium
Answer: B
Rationale: Simple squamous epithelium is composed of a single layer
of thin, flat cells. This structure allows substances to pass through
rapidly via diffusion or filtration, making it ideal for linings in blood
vessels and lung alveoli.
What is the primary function of the rough endoplasmic reticulum in a
cell?
A) ATP production
,B) Lipid synthesis
C) Protein synthesis
D) DNA replication
Answer: C
Rationale: The rough endoplasmic reticulum is studded with
ribosomes on its outer surface, which are the primary sites for
synthesizing proteins destined for membranes or secretion.
Which plane divides the human body into superior and inferior
portions?
A) Sagittal plane
B) Frontal plane
C) Transverse plane
D) Coronal plane
Answer: C
Rationale: A transverse or horizontal plane runs parallel to the
ground and cuts horizontally across the body, separating it into
upper (superior) and lower (inferior) sections.
Which homeostatic feedback mechanism amplifies the original
stimulus to move the system further away from its starting point?
A) Negative feedback
B) Positive feedback
C) Neutral feedback
D) Balanced feedback
Answer: B
Rationale: Positive feedback loops increase or accelerate a
response until a specific event or climax occurs, such as uterine
contractions during childbirth or blood clotting.
What is the fundamental functional and structural unit of compact
bone?
A) Osteocyte
B) Osteon
C) Trabeculae
D) Canaliculi
,Answer: B
Rationale: The osteon, or Haversian system, is the cylindrical
structural unit of compact bone consisting of concentric layers of
bone matrix surrounding a central canal.
Which of the following cell organelles is responsible for cellular
respiration and generating ATP?
A) Lysosome
B) Golgi apparatus
C) Mitochondrion
D) Nucleolus
Answer: C
Rationale: Mitochondria are known as the powerhouses of the cell
because they break down glucose through aerobic cellular
respiration to generate usable energy in the form of ATP.
What type of bond involves the complete transfer of electrons from
one atom to another?
A) Covalent bond
B) Hydrogen bond
C) Ionic bond
D) Polar covalent bond
Answer: C
Rationale: An ionic bond forms when one atom loses electrons to
become a positive ion and another atom gains those electrons to
become a negative ion, creating an electrostatic attraction.
In which skin layer are the actively dividing stem cells located?
A) Stratum corneum
B) Stratum basale
C) Stratum granulosum
D) Stratum spinosum
Answer: B
Rationale: The stratum basale is the deepest layer of the epidermis
and contains single rows of cuboidal or columnar stem cells that
constantly undergo mitosis to produce new keratinocytes.
, Which muscle contraction occurs when the muscle develops tension
but does not shorten or change length?
A) Concentric contraction
B) Eccentric contraction
C) Isometric contraction
D) Isotonic contraction
Answer: C
Rationale: Isometric contractions generate force and muscle
tension, but the muscle length remains constant because the
resistance equals or exceeds the force generated.
What neurotransmitter is released at the neuromuscular junction to
stimulate skeletal muscle contraction?
A) Dopamine
B) Epinephrine
C) Acetylcholine
D) Serotonin
Answer: C
Rationale: Acetylcholine (ACh) is the specific chemical signaling
molecule released by motor neurons that binds to receptors on the
motor end plate, triggering muscle depolarization.
Which part of a neuron typically receives incoming signals from
other cells?
A) Axon
B) Dendrite
C) Myelin sheath
D) Synaptic knob
Answer: B
Rationale: Dendrites are short, branching cytoplasmic extensions
that project from the cell body to act as receptors for incoming
electrical or chemical inputs.
What structure connects bone to another bone to stabilize a joint?
A) Tendon
B) Ligament