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BIOS242: W3 - Nutrition and
Metabolism Questions and Answers
(100% Correct Answers) Already
Graded A+
What is an organism that grows in lower pH conditions called?
© 2026 Assignment
Ans: Acidophile
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Which term describes a microorganism that obtains nutrients
Expert
by decomposing dead organic matter in its environment? Ans:
Saprobe
Organisms that use inorganic carbon sources (such as carbon
dioxide) are known as Ans: Autotrophs
Organisms that use organic carbon sources (such as glucose)
are known as Ans: Heterotrophs
To grow, microorganisms require sources of Ans: Carbon and
energy
Heterotrophs obtain carbon from organic molecules such as
Ans: Glucose.
Autotrophs obtain carbon from Ans: Inorganic carbon
dioxide.
Phototrophs obtain energy from Ans: Lights
Chemotrophs obtain energy from Ans: Chemical compounds
, 2
Acquire energy from light and carbon from carbon dioxide.
Ans: Photoautotrophs
Obtain energy from inorganic or organic compounds and
carbon from carbon dioxide Ans: Chemoautotrophs
Acquire energy from light and carbon from organic
compounds. Ans: Photoheterotrophs
Use organic compounds for both energy and carbon sources.
© 2026 Assignment
Ans: Chemoheterotrophs
For a cell to survive, nutrients must be taken into the Ans: ell
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and waste materials must be transported out of the cell.
Expert
The cell wall is nonselective, which allows molecules to Ans:
pass through freely.
Passive transport Ans: does not use energy
Diffusion Ans: The movement of molecules in a gradient
from an area of higher density or concentration to an area of
lower density or concentration
Osmosis definition Ans: the movement of water across a
selectively permeable membrane
Facilitated diffusion Ans: The movement of a specific
substance with the assistance of a carrier protein
Active transport Ans: Moves nutrients against the diffusion
gradient or in the same direction as the natural gradient but at
a faster rate with energy expenditure.
BIOS242: W3 - Nutrition and
Metabolism Questions and Answers
(100% Correct Answers) Already
Graded A+
What is an organism that grows in lower pH conditions called?
© 2026 Assignment
Ans: Acidophile
Guru01 - Stuvia
Which term describes a microorganism that obtains nutrients
Expert
by decomposing dead organic matter in its environment? Ans:
Saprobe
Organisms that use inorganic carbon sources (such as carbon
dioxide) are known as Ans: Autotrophs
Organisms that use organic carbon sources (such as glucose)
are known as Ans: Heterotrophs
To grow, microorganisms require sources of Ans: Carbon and
energy
Heterotrophs obtain carbon from organic molecules such as
Ans: Glucose.
Autotrophs obtain carbon from Ans: Inorganic carbon
dioxide.
Phototrophs obtain energy from Ans: Lights
Chemotrophs obtain energy from Ans: Chemical compounds
, 2
Acquire energy from light and carbon from carbon dioxide.
Ans: Photoautotrophs
Obtain energy from inorganic or organic compounds and
carbon from carbon dioxide Ans: Chemoautotrophs
Acquire energy from light and carbon from organic
compounds. Ans: Photoheterotrophs
Use organic compounds for both energy and carbon sources.
© 2026 Assignment
Ans: Chemoheterotrophs
For a cell to survive, nutrients must be taken into the Ans: ell
Guru01 - Stuvia
and waste materials must be transported out of the cell.
Expert
The cell wall is nonselective, which allows molecules to Ans:
pass through freely.
Passive transport Ans: does not use energy
Diffusion Ans: The movement of molecules in a gradient
from an area of higher density or concentration to an area of
lower density or concentration
Osmosis definition Ans: the movement of water across a
selectively permeable membrane
Facilitated diffusion Ans: The movement of a specific
substance with the assistance of a carrier protein
Active transport Ans: Moves nutrients against the diffusion
gradient or in the same direction as the natural gradient but at
a faster rate with energy expenditure.
