1
Q
Define Amensalism
A
an interaction where an organism inflicts harm to another organism without any cost or benefits received by itself
2
Q
Define Neutralism
A
describes the relationship between two species that interact but do not affect each other
3
Q
What are Lichens and giev an example
A
Leafy or encrusting microbial symbioses
Alga- fungus
4
Q
Where are Lichens most commonly found?
A
• Often found growing on bare rocks, tree trunks, roofs and surfaces of bare soils
5
Q
Starting at the stomach what is the path of the alimentary canal
A
Stomach--> Duodenum--> Jejunum--> Ileum --> Cecum--> Colon--> Rectum
6
Q
What is the function of gut microbacteria?
A
- 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
