10 Questions
What is the primary source of nitrogen for heterotrophs?
Proteins, DNA, RNA, and ATP
Which of the following elements is essential for energy transfers in cells?
Phosphorus
What is the term for the transport of molecules against a gradient, requiring energy and carrier proteins?
Active transport
Which of the following organisms derives its energy from sunlight and produces oxygen as a byproduct?
Photoautotrophs
What is the term for the process by which substances are taken into a cell without being transported through the membrane, requiring energy?
Endocytosis
What is the primary function of micronutrients in microbial nutrition?
Maintain protein structure and enzyme function
Which type of nutrient is composed of carbon and hydrogen atoms?
Organic nutrients
What percentage of a microbial cell is composed of six elements?
96%
What is the primary characteristic of heterotrophs?
They obtain carbon in an organic form
What type of autotroph derives energy from organic compounds and obtains its carbon source from inorganic compounds?
Chemoorganic autotroph
Test your knowledge on the elements of microbial nutrition, including macronutrients, micronutrients, inorganic and organic nutrients. Learn about the importance of these nutrients in microbial growth and ecology. Understand the roles of proteins, carbohydrates, metals, and other elements in microbial metabolism and function.
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