Food Micro Midterm 1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | suboptimal, resist, same
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| show | Temperature, UV light, irradiation, electric field
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| show | pH, antibiotics, detergents, oxidative stress, preservatives
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| What do microorganisms utilize as apart of their mechanism of stress adaptation? | show 🗑
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| In gram (-) cells, rpoH and rpoE are genes for ______. | show 🗑
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| In gram (-) cells, rpoS is a gene for _____. | show 🗑
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| show | The time needed at a given temperature for destroying 90% of microbial population.
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| Define sublethal injury. | show 🗑
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| show | Structural/functional changes, loss of permeability barrier, degradation of genetic materials, autolytic activity, damage to spore cortex.
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| _____ bacteria may be able to induce an acid tolerance response to protect the cell from severe acid conditions. | show 🗑
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| show | Potential capability in multiplying, undetectable in selective media.
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| What are the two preventive controls associated with injured microorganisms in food? | show 🗑
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| T or F: Under certain unfavorable environments, cells may not be recovered in normal media but remain viable. | show 🗑
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| Define viability. | show 🗑
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| Define metabolically active. | show 🗑
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| show | Inability to multiply under any conditions.
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| Define resuscitation. | show 🗑
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Created by:
goberoi
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