Select which statements are true 1. if oxygen concentration in the lumen of the colon increases, this

Human Anatomy & Physiology (11th Edition)
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Chapter1: The Human Body: An Orientation
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Microbiology: Select which statements are true

1. if oxygen concentration in the lumen of the colon increases, this could decrease lumenal short chain fatty acid concentration

2. consuming diverse insoluble dietary fibers can promote increased digestive bacterial diversity, thus affecting the abundance and ratios of short chain fatty acids produced

3. fiber that is indigestible to humans is the most likely carbon source used for producing SCFAs

4. obligate anaerobes are more likely found in small intestine than in colon, because small intestine has higher levels of oxygen

5. less complex carbs (sucros, lactose, glucose,) are likely less abundant in the colon than in stomach or begging of small intestine.

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