📚 Learning Guide
Human Microbiome
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Which of the following scenarios best illustrates the role of the human microbiome in maintaining health?

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Choose the Best Answer

A

A person recovering from a cold takes antibiotics and feels better after a few days.

B

A person with a diverse diet that includes fermented foods experiences fewer digestive issues.

C

A healthy individual who never consumes probiotics becomes ill from an infection.

D

A person with a high-sugar diet develops diabetes, despite having a regular exercise routine.

Understanding the Answer

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Answer

The best illustration is a child who eats a balanced diet and keeps a healthy gut flora, which helps fight off harmful bacteria. The microbes in the gut break down fibers into short‑chain fatty acids that nourish colon cells and signal the immune system. These signals keep the immune response balanced, preventing overreaction and allergies. For instance, a person who takes antibiotics loses many of these microbes and becomes more prone to infections, showing how the microbiome protects health. This example shows the microbiome’s role in digestion, immunity, and disease prevention.

Detailed Explanation

Eating a variety of foods, especially fermented ones, gives the gut many different bacteria. Other options are incorrect because People think antibiotics make you feel better by killing germs, but they also kill good gut bacteria; The idea that you must eat probiotics to stay healthy is a misconception.

Key Concepts

Human Microbiome
Health and Disease
Antibiotics and Microbiome Impact
Topic

Human Microbiome

Difficulty

medium level question

Cognitive Level

understand

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