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: Which of the following describes trace elements?
Answer Choices:
Macronutrient
CHONPS
Micronutrient
Answer: Micronutrient
Question: Which of the following is NOT a good example of a chemoheterotroph?
Answer Choices:
Plants
Humans
Fungi
Bacteria
Answer: Plants
Question: Which of the following are essential nutrients for microbes? [Note that these are usually needed in large amounts.]
Answer Choices:
Magnesium
Hydrogen
Iron
Oxygen
Phosphate
Carbon
Sulfur
Nitrogen
Answer: Hydrogen, Oxygen, Phosphate, Carbon, Sulfur, Nitrogen
Question: Which of the following are essential nutrients for microbes?
Answer Choices:
Phosphate
Oxygen
Nitrogen
Magnesium
Iron
Carbon
Hydrogen
Sulfur
Answer: Phosphate, Oxygen, Nitrogen, Carbon, Hydrogen, Sulfur
Question: Microbes that use organic compounds for energy and inorganic compounds as a carbon source are called _____
Answer Choices:
photoautotrophs
heterotrophs
chemoautotrophs
Answer: chemoautotrophs
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 type of organism must obtain its carbon from organic sources?
Answer Choices:
Heterotroph
Chemotroph
Phototroph
Autotroph
Answer: Heterotroph
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: Any substance that must be provided to an organism to satisfy a nutritional need is termed a(n) _____ nutrient.
Answer Choices:
(No answer options provided)
Answer: essential
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 must acquire its chemical energy from some outside source?
Answer Choices:
Autotroph
Heterotroph
Both autotrophs and heterotrophs
Neither autotrophs nor heterotrophs
Answer: Both autotrophs and heterotrophs
Question: A nutrient containing a combination of atoms other than carbon and hydrogen is called a(n) _____ nutrient.
Answer Choices:
(No answer options provided)
Answer: inorganic
Question: If a cell LOSES water after being placed into a particular solution, what is true regarding the tonicity of the solution?
Answer Choices:
The solution is hypotonic relative to the cell.
The solution and cell are isotonic relative to each other.
The solution is hypertonic relative to the cell.
Answer: The solution is hypertonic relative to the cell.
Question: A nutrient containing a combination of atoms other than carbon and hydrogen is called a(n) _____ nutrient.
Answer Choices:
(No answer options provided)
Answer: inorganic
Question: If a cell LOSES water after being placed into a particular solution, what is true regarding the tonicity of the solution?
Answer Choices:
The solution is hypotonic relative to the cell.
The solution and cell are isotonic relative to each other.
The solution is hypertonic relative to the cell.
Answer: The solution is hypertonic relative to the cell.