NUTRITION OF MICROORGANISMS

Question 1

What is the basic requirements of all living organisms?

Answer 1

Water, Carbon, Energy, Nitrogen, Minerals and growth factors

Question 2

What does most microorganisms utilize as their energy sources

Answer 2

Carbohydrates (glucose and starches) or amino acids

Question 3

How to determine the minimal growth requirement for certain microorganisms?

Answer 3

The organism is supplied with culture media containing all the necessary dietary ingredients except nitrogen

Question 4

What are the agar plates used for nutrition of microorganisms experiment?

Answer 4

Agar-Agar
Agar + Minerals
Agar + Minerals + Carbohydrate
Agar + Minerals + Carbohydrate + Organic Nitrogen

Question 5

Which organism had the minimal nutritional requirements? which had the highest?

Answer 5

Lactobacillus plantarum

B. subtilis, E. coli, and P. fluorescens

Question 6

What basic needs appears to be in common in the media for growth?

Answer 6

Minerals + Carbohydrate + Nitrogen

Question 7

Why do different microorganisms have different nutritional requirements?

Answer 7

Every microbe has unique nutritional requirements, depending on the types of molecules it is capable of making for itself

Question 8

Which microorganism cannot grow without nitrogen in the medium?

Answer 8

Lactobacillus plantarum, can only grow with the presence of nitrogen