Pregunta
(15) The natural barriers in the Gi tract include:
A) The acid pH of the stomach
B) Antibacterial activity of pancreatic enzymes, bile and intestinal secretions
C)
D) Normal flora
A) The acid pH of the stomach
B) Antibacterial activity of pancreatic enzymes, bile and intestinal secretions
C)
D) Normal flora
Ask by Johnson Hardy. in the United States
Mar 20,2025
Solución de inteligencia artificial de Upstudy
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The natural barriers in the GI tract include the acid pH of the stomach and the antibacterial activity of pancreatic enzymes, bile, and intestinal secretions.
Solución
To determine the correct answer regarding the natural barriers in the gastrointestinal (GI) tract, let’s analyze each option:
A) The acid pH of the stomach: The stomach’s acidic environment (primarily due to hydrochloric acid) serves as a barrier to pathogens, helping to kill bacteria and other microorganisms that enter with food.
B) Antibacterial activity of pancreatic enzymes, bile, and intestinal secretions: These secretions contain enzymes and substances that can neutralize or kill bacteria, further protecting the GI tract from infections.
C)
D) Normal flora: The normal flora (or microbiota) in the GI tract also plays a protective role by outcompeting harmful pathogens for resources and space, but it is not a direct barrier like the acid pH or antibacterial secretions.
Given this analysis, the best answer is:
C)
Both the acid pH of the stomach and the antibacterial activity of pancreatic enzymes, bile, and intestinal secretions are indeed natural barriers in the GI tract.
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Simplifique esta solución Mind Expander
The natural barriers in the gastrointestinal tract (GI tract) play a crucial role in protecting against pathogens. The acid pH of the stomach acts as a formidable barrier, killing many microbes that enter with food. Coupling this with the antibacterial activity of pancreatic enzymes, bile, and other intestinal secretions creates a multi-layered defense system that keeps you healthy and aids digestion.
Normal flora are also essential players in this defense mechanism. They outcompete harmful bacteria for resources and space, helping to maintain a balanced microbial environment. This dynamic ensures that your gut remains a fortress against unwanted invaders while still allowing beneficial digestion and absorption processes to take place.
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