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Anatomy and Physiology WGU D313 2024 | Updated Objective Assessment Questions with Answers (westernGU) $17.99
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Anatomy and Physiology WGU D313 2024 | Updated Objective Assessment Questions with Answers (westernGU)

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Anatomy and Physiology WGU D313 2024 | Updated Objective Assessment Questions with Answers (westernGU)

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  • June 3, 2024
  • December 19, 2024
  • 8
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

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  • anatomy and physiology wgu d313 2025 updated obj

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  • Human anatomy and physiology
  • Human anatomy and physiology

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WGU D313 Anatomy and Physiology Objective
Assessment 2025 | Up-to-Date Exam
Questions with Detailed Answers

1. Which organelle is primarily responsible for energy production in
the cell?
a) Nucleus
b) Ribosome
c) Mitochondrion
d) Endoplasmic Reticulum
Answer: c) Mitochondrion
Rationale: The mitochondrion is known as the "powerhouse of the cell"
because it generates ATP, the cell’s main energy source, through cellular
respiration.


2. What type of tissue lines the respiratory tract and functions in
secretion and movement of mucus?
a) Simple squamous epithelium
b) Stratified squamous epithelium
c) Pseudostratified ciliated columnar epithelium
d) Transitional epithelium
Answer: c) Pseudostratified ciliated columnar epithelium
Rationale: This tissue type contains cilia that help move mucus and
trapped particles out of the respiratory tract, maintaining clear airways.

,3. Which part of the brain regulates balance and coordination?
a) Cerebrum
b) Medulla oblongata
c) Hypothalamus
d) Cerebellum
Answer: d) Cerebellum
Rationale: The cerebellum is responsible for fine motor coordination,
balance, and posture.


4. What is the primary function of red blood cells?
a) Fight infections
b) Transport oxygen
c) Produce hormones
d) Clot blood
Answer: b) Transport oxygen
Rationale: Red blood cells contain hemoglobin, which binds oxygen and
delivers it to tissues throughout the body.


5. What is the main function of the large intestine?
a) Nutrient absorption
b) Water absorption
c) Protein digestion
d) Bile production
Answer: b) Water absorption
Rationale: The large intestine absorbs water and electrolytes from
indigestible food residues, forming solid feces.

,6. Which hormone is secreted by the pancreas to lower blood glucose
levels?
a) Glucagon
b) Insulin
c) Cortisol
d) Epinephrine
Answer: b) Insulin
Rationale: Insulin facilitates glucose uptake by cells, reducing blood
sugar levels.


7. What type of joint is found between the cranial bones?
a) Hinge joint
b) Ball-and-socket joint
c) Pivot joint
d) Suture
Answer: d) Suture
Rationale: Sutures are immovable joints that connect the bones of the
skull, providing protection to the brain.


8. During muscle contraction, which protein binds to calcium to enable
cross-bridge formation?
a) Actin
b) Myosin
c) Troponin
d) Tropomyosin
Answer: c) Troponin
Rationale: Calcium binds to troponin, causing a conformational change

, that moves tropomyosin and exposes binding sites on actin for myosin
to attach.


9. Which part of the nephron is primarily responsible for filtration of
blood?
a) Loop of Henle
b) Proximal convoluted tubule
c) Distal convoluted tubule
d) Glomerulus
Answer: d) Glomerulus
Rationale: The glomerulus is a network of capillaries where blood
filtration occurs, producing filtrate for urine formation.


10. What type of feedback mechanism is involved in regulating blood
glucose levels?
a) Positive feedback
b) Negative feedback
c) Cyclical feedback
d) Neutral feedback
Answer: b) Negative feedback
Rationale: Negative feedback mechanisms maintain homeostasis by
reversing changes; for instance, insulin and glucagon regulate blood
glucose levels.


Let me know if you'd like more questions!
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