Question: What determines a microbe’s nutritional type?
Answer Choices: oxygen preference source of carbon source of trace elements source of energy
Answer: source of carbon, source of energy
Question: What is an inorganic nutrient?
Answer Choices: atom or molecule containing elements besides carbon and hydrogen atom or molecule containing hydrogen and oxygen atom or molecule containing elements besides oxygen and hydrogen
Answer: atom or molecule containing elements besides carbon and hydrogen
Question: The most abundant of cellular chemicals is _____, present at a percentage of 70%.
Answer: water
Question: A(n) _____ is any substance that must be provided to an organism to satisfy a nutritional need.
Answer Choices: trace element essential nutrient micronutrient macronutrient
Answer: essential nutrient
Question: Nutrition is the acquisition of chemical substances by organisms for use as an energy source or as building blocks of cellular structures.
Answer Choices: True False
Answer: True
Question: Which of the following describes trace elements?
Answer Choices: Macronutrient CHONPS Micronutrient
Answer: Micronutrient
Question: Any substance that must be provided to an organism to satisfy a nutritional need is termed a(n) _____ nutrient.
Answer: essential
Question: All organisms require an influx of substances from their habitat to meet their — needs for chemical elements and energy.
Answer: nutritional
Question: Essential nutrients that are required in relatively large quantities and play principal roles in cell structure and metabolism are _____
Answer Choices: micronutrients macronutrients trace elements metabolites
Answer: macronutrients
Question: Which term describes chemical substances such as carbon, hydrogen, and oxygen that are required in large quantities by cells?
Answer Choices: Macronutrients Macromolecules Macrocompounds Megamolecules
Answer: Macronutrients
Question: An organism that uses inorganic CO₂ as its carbon source is a(n) _____, while an organism requiring carbon in an organic form is a(n) _____
Answer Choices: heterotroph; autotroph autotroph; heterotroph
Answer: autotroph; heterotroph
Question: Micronutrients (zinc, manganese) that are required by cells in small amounts are termed _____ elements.
Answer: trace