Microbial Nutrition

MICROBIAL NUTRITION
(3) Basic Nutritional Requirements for Microbial Growth:
descent of Nutrients
informant of faculty
Source of Electrons (e-) or Hydrogen atoms that donate e-

I. Source of Nutrients / (carbon) the basic building blocks manipulationd by microbes to
build/ compound new cadre components ? basic building blocks are the elements from the diurnal Table.
Includes:
? Macroelements elements that are required in large amounts for growth
(make up 95% of dry cell weight no water):
carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, calcium, iron, magnesium, randomness
? Microelements or Trace Elements elements required for growth, but only in
really small amounts:
copper, cobalt, nickel, zinc, manganese
Classification of Microbes by Carbon Requirement:
A. Autotrophs (self-fed) microbes employ carbon dioxide (CO2) as sole source of carbon.
B. Heterotrophs (mix-fed) microbes use some diverse organic compounds as their source of carbon (Ex. glucose, aminic acids, purines, and pyrimidines).

II. Source of Energy the capacity/ability to do work.

oeuvre by cells may include:
A.Biosynthesis of macromolecules/new cell components
B.Active Transport
C.



Motility

To pay for work, cells use adenosine triphosphate (Adenosine Triphosphate):
adenosine triphosphate ? ADP + Pi (phosphate group) + Energy to do work

How do cells get ATP?
ADP + Pi + Energy ? ATP

Where does Energy to create ATP come from?

(2) Strategies/Classification for Energy to throw ATP:

1. Phototrophs (light-fed) microbes use energy from sunshine to create ATP through Photosynthesis.
H2O + CO2 + sunlight (energy) ? C6H12O6 (glucose) + O2
- Energy from sunlight switch overed into chemical energy, stored in bonds of glucose.
-These microbes must now convert chemical energy in glucose into more efficient high-power bonds of ATP.

-Glucose will be oxidized (break down) and energy converted to ATP.

2.Chemotrophs (chemical-fed) microbes use chemical...If you want to get a full essay, order it on our website: Orderessay



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