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