Microbial Growth and Cultivation Techniques Quiz

Play an AI-generated podcast conversation about this lesson

What are the essential elements for microbial growth?

Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus, and Sulfur

What are the factors that affect microbial growth?

Temperature, pH, Oxygen, Carbon Source, Energy Source, and Electron Source

Name three mineral nutrients important in microbial metabolism.

Potassium, Sodium, Calcium

What are the nutritional classifications of microorganisms based on carbon source utilization?

Heterotrophs and Autotrophs Signup and view all the answers

What are the types of bacterial heterotrophs?

Saprobes and Parasites Signup and view all the answers

What are the three techniques involved in microbial cultivation?

The three techniques involved in microbial cultivation are culture media preparation, aseptic techniques, and monitoring growth. Signup and view all the answers

What are the environmental factors that can affect the cultivation of microorganisms?

The environmental factors that can affect the cultivation of microorganisms are temperature, oxygen levels, pH, and osmotic concentration of the medium. Signup and view all the answers

What are the major elements that make up 95% of the cell dry weight?

The major elements that make up 95% of the cell dry weight are carbon, oxygen, hydrogen, nitrogen, sulfur, phosphorus, potassium, calcium, magnesium, and iron. Signup and view all the answers

What are inorganic nutrients in the context of microbial growth?

Inorganic nutrients are atoms, ions, or molecules that contain a combination of atoms other than carbon and hydrogen, such as metals and their salts, gases, and water. Signup and view all the answers

What are macronutrients and what role do they play in microbial growth?

Macronutrients are elements required in fairly large amounts that play a role in cell structure and metabolism. Signup and view all the answers

Micronutrients are metals and organic compounds needed in very ______ amounts

small Signup and view all the answers

Carbon, Hydrogen, and Oxygen form the backbone of ______ molecules

organic Signup and view all the answers

Nitrogen is essential for amino acids and nucleotide synthesis, some carbohydrates and lipids, enzyme cofactors, and other ______

substances Signup and view all the answers

Phosphorus is vital for cell membrane and macromolecule ______

synthesis Signup and view all the answers

Potassium is essential to ______ synthesis and membrane function

protein Signup and view all the answers

Microbial cultivation involves creating a favorable environment for microorganisms to grow and reproduce in laboratory conditions. Techniques include: 1) culture media preparation 2) aseptic techniques 3) monitoring ______

growth Signup and view all the answers

Nutrients are substances used in biosynthesis and energy production and therefore are important for survival and microbial ______. Supply of raw materials or nutrients critical to obtain energy and construct new cellular components.

growth Signup and view all the answers

Environmental factors affection cultivation of microorganisms: 1. ______ 2.Oxygen levels 3.pH 4.Osmotic concentration of medium

Temperature Signup and view all the answers

95% of cell dry weight made up of a few major elements: carbon, oxygen, hydrogen, nitrogen, sulfur, phosphorus, potassium, calcium, magnesium, & ______.

iron Signup and view all the answers

Macronutrients: elements required in fairly large amounts that play a role in cell structure and ______.

metabolism Signup and view all the answers