Module 4

Question 1

The human gut microbiome:

Answer 1

100 trillion microbes with symbiotic relationships with the host (mutually beneficial)
- huge genetic potential

Question 2

Abundance and composition of microbiome influenced by:

Answer 2

diet, meds, hosts metabolic health

Question 3

Healthy microbiome functions:

Answer 3

1.Breakdown dietary fibres
2.Production of SCFAs
3. Production of vitamins & other cofactors

Question 4

major phyla (most prevalent) include: (4)

Answer 4

firmicutes, bacteroidetes, actinobacteria, proteobacteria

Question 5

Aerobic species of gut bacteria are located in the _______ and anaerobic in ________

Answer 5

upper gut; lower gut

Question 6

T/F : classification using SSU rRNA can tell you info about classification, identification and function of microbes

Answer 6

FALSE; only classification & identification

Question 7

Two ways to study gut microbiome:

Answer 7

1. culturing
2. SSU rRNA