Ivy Tech APHY 101 Final Exam 2025:
Questions & 100% Verified Answers |
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Question 1: Which of the following is the correct structural hierarchy in the human body, from
simplest to most complex?
A. Atom → Molecule → Organelle → Cell → Tissue → Organ → Organ System → Organism B.
Molecule → Atom → Cell → Tissue → Organelle → Organ → Organ System → Organism C.
Organism → Organ System → Organ → Tissue → Cell → Organelle → Molecule → Atom D.
Organelle → Molecule → Atom → Cell → Tissue → Organ → Organ System → Organism
Correct Answer: A Rationale: The correct structural hierarchy in the human body is atom →
molecule → organelle → cell → tissue → organ → organ system → organism. This
sequence represents the increasing complexity of biological organization.
Question 2: Which of the following is NOT a component of homeostasis?
A. Maintaining a stable internal environment B. Responding to external stimuli C. Increasing
metabolic rate without regulation D. Using feedback mechanisms to regulate body functions
Correct Answer: C Rationale: Homeostasis involves maintaining a stable internal
environment, responding to external stimuli, and using feedback mechanisms to regulate
body functions. Increasing metabolic rate without regulation disrupts homeostasis.
Question 3: Which anatomical term refers to the back of the body?
A. Anterior B. Posterior C. Superior D. Inferior
Correct Answer: B Rationale: The term posterior refers to the back of the body. Anterior (A)
refers to the front, superior (C) refers to above, and inferior (D) refers to below.
,Question 4: Which type of cell junction allows for the rapid passage of ions and small
molecules between cells?
A. Desmosomes B. Tight junctions C. Gap junctions D. Hemidesmosomes
Correct Answer: C Rationale: Gap junctions are specialized cell junctions that allow for the
rapid passage of ions and small molecules between adjacent cells, facilitating communication
and coordination.
Question 5: Which organelle is responsible for producing ATP in a cell?
A. Golgi apparatus B. Mitochondria C. Endoplasmic reticulum D. Lysosome
Correct Answer: B Rationale: The mitochondria are the powerhouses of the cell, responsible
for producing ATP through cellular respiration.
Question 6: Which of the following is an example of negative feedback?
A. Childbirth contractions B. Blood clotting C. Regulation of body temperature D. Lactation
Correct Answer: C Rationale: Negative feedback mechanisms work to reverse a change in
the body and maintain homeostasis. The regulation of body temperature is a classic example, as
the body works to counteract temperature fluctuations.
Question 7: Which tissue type is characterized by cells that are closely packed together with
little extracellular matrix?
A. Connective tissue B. Epithelial tissue C. Muscle tissue D. Nervous tissue
Correct Answer: B Rationale: Epithelial tissue is composed of cells that are closely packed
together with minimal extracellular matrix, forming protective layers and linings.
Question 8: Which of the following is NOT a function of the integumentary system?
A. Protection from pathogens B. Regulation of body temperature C. Production of red blood cells
D. Sensation
, Correct Answer: C Rationale: The integumentary system is responsible for protection,
temperature regulation, and sensation, but production of red blood cells occurs in the
bone marrow, not the skin.
Question 9: Which layer of the skin contains blood vessels, sweat glands, and hair follicles?
A. Epidermis B. Dermis C. Hypodermis D. Stratum corneum
Correct Answer: B Rationale: The dermis is the middle layer of the skin and contains blood
vessels, sweat glands, and hair follicles. The epidermis (A) is the outermost layer, the
hypodermis (C) is the deepest layer, and the stratum corneum (D) is the outermost layer of the
epidermis.
Question 10: Which of the following is the primary function of melanin in the skin?
A. Waterproofing B. Protection from UV radiation C. Temperature regulation D. Sensation
Correct Answer: B Rationale: Melanin is a pigment produced by melanocytes in the skin that
provides protection from UV radiation by absorbing and dissipating ultraviolet light.
Question 11: Which type of bone cell is responsible for breaking down bone tissue?
A. Osteoblasts B. Osteocytes C. Osteoclasts D. Chondrocytes
Correct Answer: C Rationale: Osteoclasts are the bone cells responsible for resorbing
(breaking down) bone tissue , which is essential for bone remodeling and calcium regulation.
Question 12: Which of the following is the correct sequence of bone healing after a fracture?
A. Hematoma formation → Fibrocartilaginous callus → Bony callus → Remodeling B.
Fibrocartilaginous callus → Hematoma formation → Bony callus → Remodeling C. Bony callus
→ Hematoma formation → Fibrocartilaginous callus → Remodeling D. Remodeling →
Hematoma formation → Fibrocartilaginous callus → Bony callus
Correct Answer: A Rationale: The correct sequence of bone healing is hematoma formation
→ fibrocartilaginous callus → bony callus → remodeling.
Questions & 100% Verified Answers |
Guaranteed Pass
Question 1: Which of the following is the correct structural hierarchy in the human body, from
simplest to most complex?
A. Atom → Molecule → Organelle → Cell → Tissue → Organ → Organ System → Organism B.
Molecule → Atom → Cell → Tissue → Organelle → Organ → Organ System → Organism C.
Organism → Organ System → Organ → Tissue → Cell → Organelle → Molecule → Atom D.
Organelle → Molecule → Atom → Cell → Tissue → Organ → Organ System → Organism
Correct Answer: A Rationale: The correct structural hierarchy in the human body is atom →
molecule → organelle → cell → tissue → organ → organ system → organism. This
sequence represents the increasing complexity of biological organization.
Question 2: Which of the following is NOT a component of homeostasis?
A. Maintaining a stable internal environment B. Responding to external stimuli C. Increasing
metabolic rate without regulation D. Using feedback mechanisms to regulate body functions
Correct Answer: C Rationale: Homeostasis involves maintaining a stable internal
environment, responding to external stimuli, and using feedback mechanisms to regulate
body functions. Increasing metabolic rate without regulation disrupts homeostasis.
Question 3: Which anatomical term refers to the back of the body?
A. Anterior B. Posterior C. Superior D. Inferior
Correct Answer: B Rationale: The term posterior refers to the back of the body. Anterior (A)
refers to the front, superior (C) refers to above, and inferior (D) refers to below.
,Question 4: Which type of cell junction allows for the rapid passage of ions and small
molecules between cells?
A. Desmosomes B. Tight junctions C. Gap junctions D. Hemidesmosomes
Correct Answer: C Rationale: Gap junctions are specialized cell junctions that allow for the
rapid passage of ions and small molecules between adjacent cells, facilitating communication
and coordination.
Question 5: Which organelle is responsible for producing ATP in a cell?
A. Golgi apparatus B. Mitochondria C. Endoplasmic reticulum D. Lysosome
Correct Answer: B Rationale: The mitochondria are the powerhouses of the cell, responsible
for producing ATP through cellular respiration.
Question 6: Which of the following is an example of negative feedback?
A. Childbirth contractions B. Blood clotting C. Regulation of body temperature D. Lactation
Correct Answer: C Rationale: Negative feedback mechanisms work to reverse a change in
the body and maintain homeostasis. The regulation of body temperature is a classic example, as
the body works to counteract temperature fluctuations.
Question 7: Which tissue type is characterized by cells that are closely packed together with
little extracellular matrix?
A. Connective tissue B. Epithelial tissue C. Muscle tissue D. Nervous tissue
Correct Answer: B Rationale: Epithelial tissue is composed of cells that are closely packed
together with minimal extracellular matrix, forming protective layers and linings.
Question 8: Which of the following is NOT a function of the integumentary system?
A. Protection from pathogens B. Regulation of body temperature C. Production of red blood cells
D. Sensation
, Correct Answer: C Rationale: The integumentary system is responsible for protection,
temperature regulation, and sensation, but production of red blood cells occurs in the
bone marrow, not the skin.
Question 9: Which layer of the skin contains blood vessels, sweat glands, and hair follicles?
A. Epidermis B. Dermis C. Hypodermis D. Stratum corneum
Correct Answer: B Rationale: The dermis is the middle layer of the skin and contains blood
vessels, sweat glands, and hair follicles. The epidermis (A) is the outermost layer, the
hypodermis (C) is the deepest layer, and the stratum corneum (D) is the outermost layer of the
epidermis.
Question 10: Which of the following is the primary function of melanin in the skin?
A. Waterproofing B. Protection from UV radiation C. Temperature regulation D. Sensation
Correct Answer: B Rationale: Melanin is a pigment produced by melanocytes in the skin that
provides protection from UV radiation by absorbing and dissipating ultraviolet light.
Question 11: Which type of bone cell is responsible for breaking down bone tissue?
A. Osteoblasts B. Osteocytes C. Osteoclasts D. Chondrocytes
Correct Answer: C Rationale: Osteoclasts are the bone cells responsible for resorbing
(breaking down) bone tissue , which is essential for bone remodeling and calcium regulation.
Question 12: Which of the following is the correct sequence of bone healing after a fracture?
A. Hematoma formation → Fibrocartilaginous callus → Bony callus → Remodeling B.
Fibrocartilaginous callus → Hematoma formation → Bony callus → Remodeling C. Bony callus
→ Hematoma formation → Fibrocartilaginous callus → Remodeling D. Remodeling →
Hematoma formation → Fibrocartilaginous callus → Bony callus
Correct Answer: A Rationale: The correct sequence of bone healing is hematoma formation
→ fibrocartilaginous callus → bony callus → remodeling.
