Our Microbiome

Question 1

Define Amensalism

Answer 1

an interaction where an organism inflicts harm to another organism without any cost or benefits received by itself

Question 2

Define Neutralism

Answer 2

describes the relationship between two species that interact but do not affect each other

Question 3

What are Lichens and giev an example

Answer 3

Leafy or encrusting microbial symbioses

Alga- fungus

Question 4

Where are Lichens most commonly found?

Answer 4

• Often found growing on bare rocks, tree trunks, roofs and surfaces of bare soils

Question 5

Starting at the stomach what is the path of the alimentary canal

Answer 5

Stomach-->
Duodenum-->
Jejunum-->
Ileum -->
Cecum-->
Colon-->
Rectum

Question 6

What is the function of gut microbacteria?

Answer 6

• synthesis of essential amino-acids and vitamins
• Produce an array of glycosidehydrolases and polysaccharide lysases, facilitating utilisation of otherwise indigestible food compounds
• Ferment saccharides is the main source of energy for intestinal epithelial cells
• Microbial de-polymerization of complex carbohydrates and proteins gives rise to mono- and oligomeric compounds that are subsequently fermented into short-chain fatty acids (SCFAs) as well as to carbon dioxide and molecular hydrogen. Carbohydrate fermentation and shortchain fatty acid production significantly improve the absorption of calcium, magnesium, and phosphorus