Nursing practice questions with comprehensive rationales
NurseDive Free Nursing Practice Question
Which process involves the movement of oxygen from the blood into body cells and the exchange of carbon dioxide from cells into the blood?
A. Cellular metabolism
Cellular metabolism: Cellular metabolism refers to the chemical reactions inside cells that use O₂ and produce CO₂, but it does not describe the movement of gases between blood and cells.
B. Alveolar ventilation
Alveolar ventilation: Alveolar ventilation is the movement of air into and out of the alveoli (airways → lungs), not the exchange between blood and body cells.
C. External respiration
External respiration: External respiration is gas exchange between the alveoli and pulmonary capillaries (air and blood in the lungs), not between blood and tissues.
D. Internal respiration
Internal respiration: Internal respiration is the exchange of O₂ from the blood into body cells and CO₂ from the cells into the blood .
This question is an excerpt from Nurse Dive's nursing test bank - HUMAN ANATOMY AND PHYSIOLOGY II PROCTORED EXAM (ARIZONA COLLEGE). Take the full exam now
Full Explanation
A. Cellular metabolism: Cellular metabolism refers to the chemical reactions inside cells that use O₂ and produce CO₂, but it does not describe the movement of gases between blood and cells.
B. Alveolar ventilation: Alveolar ventilation is the movement of air into and out of the alveoli (airways → lungs), not the exchange between blood and body cells.
C. External respiration: External respiration is gas exchange between the alveoli and pulmonary capillaries (air and blood in the lungs), not between blood and tissues.
D. Internal respiration: Internal respiration is the exchange of O₂ from the blood into body cells and CO₂ from the cells into the blood .
Similar Questions
The pancreas functions as both an endocrine and exocrine gland. Which of the following accurately describes its dual role?
A. The exocrine function involves hormone release, while the endocrine function involves the secretion of buffers and enzymes.
The exocrine function involves hormone release, while the endocrine function involves the secretion of buffers and enzymes.: this reverses the roles; exocrine does enzymes/buffers, endocrine does hormones.
B. The endocrine function involves the secretion of digestive enzymes, while the exocrine function involves hormone release.
The endocrine function involves the secretion of digestive enzymes, while the exocrine function involves hormone release.: reversed roles.
C. The exocrine function involves the release of insulin and glucagon, while the endocrine function involves hormone release.
The exocrine function involves the release of insulin and glucagon, while the endocrine function involves hormone release.: insulin and glucagon are endocrine products, not exocrine.
D. The endocrine function involves the release of insulin and glucagon, while the exocrine function involves the secretion of digestive enzymes and buffers.
The endocrine function involves the release of insulin and glucagon, while the exocrine function involves the secretion of digestive enzymes and buffers.: the pancreas’ islet cells secrete insulin/glucagon (endocrine) and acinar/bicarbonate secretions go to the duodenum (exocrine).
Full Explanation
A. The exocrine function involves hormone release, while the endocrine function involves the secretion of buffers and enzymes.: this reverses the roles; exocrine does enzymes/buffers, endocrine does hormones.
B. The endocrine function involves the secretion of digestive enzymes, while the exocrine function involves hormone release.: reversed roles.
C. The exocrine function involves the release of insulin and glucagon, while the endocrine function involves hormone release.: insulin and glucagon are endocrine products, not exocrine.
D. The endocrine function involves the release of insulin and glucagon, while the exocrine function involves the secretion of digestive enzymes and buffers.: the pancreas’ islet cells secrete insulin/glucagon (endocrine) and acinar/bicarbonate secretions go to the duodenum (exocrine).
Which male reproductive gland is responsible for secreting a milky fluid that nourishes and protects sperm and helps neutralize the acidic environment of the female reproductive tract?
A. Bulbourethral gland
Bulbourethral gland: Bulbourethral (Cowper’s) glands produce a clear mucous pre-ejaculate that lubricates the urethra and can neutralize small amounts of urine but do not produce the milky, nutrient-rich fluid described.
B. Skene's gland
Skene's gland: Skene’s glands are female periurethral glands (not male) and are not involved in semen production.
C. Bartholin's gland
Bartholin's gland: Bartholin’s glands are female vestibular glands producing lubrication during arousal -not involved in male semen.
D. Prostate gland
Prostate gland: The prostate secretes a slightly alkaline, milky fluid that nourishes/protects sperm and helps neutralize the acidic vaginal environment .
Full Explanation
A. Bulbourethral gland: Bulbourethral (Cowper’s) glands produce a clear mucous pre-ejaculate that lubricates the urethra and can neutralize small amounts of urine but do not produce the milky, nutrient-rich fluid described.
B. Skene's gland: Skene’s glands are female periurethral glands (not male) and are not involved in semen production.
C. Bartholin's gland: Bartholin’s glands are female vestibular glands producing lubrication during arousal -not involved in male semen.
D. Prostate gland: The prostate secretes a slightly alkaline, milky fluid that nourishes/protects sperm and helps neutralize the acidic vaginal environment .
Carbon dioxide is transported through the blood by 3 mechanisms. What are those 3 mechanisms? (Select all that apply)
A. Converted to carbon monoxide
Converted to carbon monoxide: CO (carbon monoxide) is a different gas and is not a product or transport form of CO₂.
B. Bind to myoglobin
Bind to myoglobin: Myoglobin primarily binds O₂ within muscle cells; CO₂ transport by myoglobin is not a main mechanism.
C. Binds to hemoglobin
Binds to hemoglobin: CO₂ can bind to hemoglobin (forming carbaminohemoglobin) as one transport form.
D. Converted to bicarbonate ions
Converted to bicarbonate ions: Most CO₂ is converted to bicarbonate (HCO₃⁻) in red blood cells and transported in plasma.
E. Dissolved in plasma
Dissolved in plasma: A small proportion of CO₂ is carried dissolved directly in plasma.
Full Explanation
A. Converted to carbon monoxide: CO (carbon monoxide) is a different gas and is not a product or transport form of CO₂.
B. Bind to myoglobin: Myoglobin primarily binds O₂ within muscle cells; CO₂ transport by myoglobin is not a main mechanism.
C. Binds to hemoglobin: CO₂ can bind to hemoglobin (forming carbaminohemoglobin) as one transport form.
D. Converted to bicarbonate ions: Most CO₂ is converted to bicarbonate (HCO₃⁻) in red blood cells and transported in plasma.
E. Dissolved in plasma: A small proportion of CO₂ is carried dissolved directly in plasma.