Scelta multipla
Which of the following is the most effective way to prevent bacteria from growing on temperature control for safety (TCS) foods?
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1. Introduction to Microbiology
Introduction to Microbiology
Scelta multipla
How do fungi obtain nutrients?
A
By ingesting food particles through phagocytosis
B
By absorbing organic molecules after external digestion
C
By fixing atmospheric nitrogen
D
By photosynthesizing using chlorophyll
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Understand that fungi are heterotrophic organisms, meaning they cannot produce their own food like plants do through photosynthesis.
Recognize that fungi obtain nutrients by secreting enzymes outside their cells to break down complex organic matter in their environment into smaller, absorbable molecules.
Note that this process is called external digestion, where enzymes degrade substances such as dead organic material or living hosts externally.
After external digestion, fungi absorb the resulting simple organic molecules directly through their cell walls and membranes.
Conclude that fungi do not ingest food particles by phagocytosis, fix atmospheric nitrogen, or photosynthesize; instead, they rely on absorption following external digestion.
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