What does a microbe need for growth 1. Carbon source ∠2 Nitrogen source Level of nutritional 3. Energy source elements 4. Growth factor 5. Mineral salts 6. Water
1.Carbon source 2.Nitrogen source 3.Energy source 4.Growth factor 5.Mineral salts 6.Water Level of Nutritional elements What does a microbe need for growth?
Carbon source Carbon source are defined as all the nutrients that can satisfy the need for carbon during the process of microbial growth. It is also called macronutrients(大量营养物) in that it is in the most greatest need only secondary to water. The spectrum of carbon sources(碳源谱) are extremely wide. Heterotrophs and autotrophs The spectrum of carbon sources can be divided into two ty pes organic carbon and inorganic carbon. Those who have to depend on the organic carbon source are heterotrophs, the majority of microorganisms are of this ty pe. And those who use inorganic carbon source as main form are autotrophs. Only a few of microbes are of this type
Carbon source are defined as all the nutrients that can satisfy the need for carbon during the process of microbial growth. It is also called macronutrients(大量营养物) in that it is in the most greatest need only secondary to water. The spectrum of carbon sources (碳源谱)are extremely wide. The spectrum of carbon sources can be divided into two types: organic carbon and inorganic carbon. Those who have to depend on the organic carbon source are heterotrophs, the majority of microorganisms are of this type. And those who use inorganic carbon source as main form are autotrophs. Only a few of microbes are of this type. Carbon source Heterotrophs and autotrophs
For all the heterotrophs, the carbon source is, also energy I source at the same time therefore this kind of carbon resources s called difunctional nutrient双功能营养物
For all the heterotrophs, the carbon source is also energy source at the same time, therefore this kind of carbon resources is called difunctional nutrient(双功能营养物)
Nitrogen source Nitrogen source provide the microorganism with the element of nitrogen for its living and reproduction The spectrum of nitrogen source is also quite wide and have two types: organic nitrogen and inorganic nitrogen In the culture medium the commonly used organic nitrogen are beef extract, yeast extract and peptone(牛肉膏,酵母膏和蛋 白胨)
Nitrogen source provide the microorganism with the element of nitrogen for its living and reproduction. The spectrum of nitrogen source is also quite wide and have two types: organic nitrogen and inorganic nitrogen. In the culture medium the commonly used organic nitrogen are beef extract, yeast extract and peptone(牛肉膏, 酵母膏和蛋 白胨). Nitrogen source
Amino acid autotrophs and amino acid heterotrophs Amino acid autotrophs(氨基酸自养型生物) is a group of organism who don't need amino acid as their nitrogen source and can self-synthesize all the amino acids they need using simple nitrogen source as material D dnit Otherwise, amino acid heterotrophs(氨基酸异养型生物) intake ready amino acids as their nitrogen resources. all the animals and a number of heterotrophs are amino acids heterotrophs
Amino acid autotrophs(氨基酸自养型生物) is a group of organism who don’t need amino acid as their nitrogen source and can self-synthesize all the amino acids they need using simple nitrogen source as material. Otherwise, amino acid heterotrophs (氨基酸异养型生物) intake ready amino acids as their nitrogen resources . All the animals and a number of heterotrophs are amino acids heterotrophs. Amino acid autotrophs and amino acid heterotrophs