Nursing practice questions with comprehensive rationales
NurseDive Free Nursing Practice Question
Pepsinogen is produced by______________ and is activated by__________
A. chief cells; hydrochloric acid (HCI): parietal cells
Chief cells; hydrochloric acid (HCl); parietal cells: Pepsinogen is produced by chief cells, and it is activated into pepsin by hydrochloric acid (HCl) secreted by parietal cells.
B. chief cells; carbonic anhydrase (CAH); parietal cells
Chief cells; carbonic anhydrase (CAH); parietal cells: Chief cells produce pepsinogen, but it is not activated by carbonic anhydrase. Instead, it is activated by HCl.
C. parietal cells; carbonic anhydrase (CAH); chief cells
Parietal cells; carbonic anhydrase (CAH); chief cells: Pepsinogen is produced by chief cells, not parietal cells, and its activation involves HCl, not carbonic anhydrase.
D. parietal cells; hydrochloric acid (HCI); chief cells
Parietal cells; hydrochloric acid (HCl); chief cells: Pepsinogen is produced by chief cells, not parietal cells, and is activated by HCl.
This question is an excerpt from Nurse Dive's nursing test bank - Anatomy and physiology proctored exam ( hellen fluid college). Take the full exam now
Full Explanation
A. Chief cells; hydrochloric acid (HCl); parietal cells: Pepsinogen is produced by chief cells, and it is activated into pepsin by hydrochloric acid (HCl) secreted by parietal cells.
B. Chief cells; carbonic anhydrase (CAH); parietal cells: Chief cells produce pepsinogen, but it is not activated by carbonic anhydrase. Instead, it is activated by HCl.
C. Parietal cells; carbonic anhydrase (CAH); chief cells: Pepsinogen is produced by chief cells, not parietal cells, and its activation involves HCl, not carbonic anhydrase.
D. Parietal cells; hydrochloric acid (HCl); chief cells: Pepsinogen is produced by chief cells, not parietal cells, and is activated by HCl.
Similar Questions
When does an ovum finish meiosis?
A. While in a secondary follicle
While in a secondary follicle: The ovum completes meiosis only after fertilization, not while in a secondary follicle.
B. While in a primary follicle
While in a primary follicle: The ovum is arrested in prophase I of meiosis while in a primary follicle. Meiosis is not completed until fertilization.
C. During fertilization
During fertilization: The ovum completes meiosis II during fertilization, which is when the second meiotic division is completed.
D. During implantation
During implantation: Meiosis is not completed during implantation. It is completed at fertilization.
Full Explanation
A. While in a secondary follicle: The ovum completes meiosis only after fertilization, not while in a secondary follicle.
B. While in a primary follicle: The ovum is arrested in prophase I of meiosis while in a primary follicle. Meiosis is not completed until fertilization.
C. During fertilization: The ovum completes meiosis II during fertilization, which is when the second meiotic division is completed.
D. During implantation: Meiosis is not completed during implantation. It is completed at fertilization.
The medial concavity of the kidney is c
A. corpuscle
Corpuscle: The corpuscle refers to the glomerulus and Bowman's capsule, not the medial concavity of the kidney.
B. cortex
Cortex: The cortex is the outer region of the kidney, not the medial concavity.
C. medulla
Medulla: The medulla refers to the inner part of the kidney but not specifically the medial concavity.
D. hilum
Hilum: The hilum is the medial concavity of the kidney where blood vessels, nerves, and the ureter enter and exit.
Full Explanation
A. Corpuscle: The corpuscle refers to the glomerulus and Bowman's capsule, not the medial concavity of the kidney.
B. Cortex: The cortex is the outer region of the kidney, not the medial concavity.
C. Medulla: The medulla refers to the inner part of the kidney but not specifically the medial concavity.
D. Hilum: The hilum is the medial concavity of the kidney where blood vessels, nerves, and the ureter enter and exit.
Which organ system does not excrete waste?
A. The cardiovascular system
The cardiovascular system is primarily involved in transporting blood and nutrients but does not directly excrete waste.
B. The respiratory system
The respiratory system: The respiratory system helps excrete carbon dioxide, a waste product of metabolism.
C. The digestive system
The digestive system excretes waste through the process of defecation.
D. The integumentary system
The integumentary system (skin) excretes waste through sweat.
E. The urinary system
The urinary system is directly involved in the excretion of waste products through urine.
Full Explanation
A. The cardiovascular system is primarily involved in transporting blood and nutrients but does not directly excrete waste.
B. The respiratory system: The respiratory system helps excrete carbon dioxide, a waste product of metabolism.
C. The digestive system excretes waste through the process of defecation.
D. The integumentary system (skin) excretes waste through sweat.
E. The urinary system is directly involved in the excretion of waste products through urine.