Salmonella Bacterial Poisoning Can Be Initiated When

question 73

Multiple Choice

Salmonella bacterial poisoning can be initiated when

• A) the microbe survives the acidic environment of the stomach and resists lysosomal degradation in macrophages.
• B) there is a delay in selection of the population of eosinophils that recognize and fight these microbes.
• C) microbes release chemical messengers that make them resistant to phagocytosis.
• D) the combination of foods eaten at a meal reduces the pH of the stomach sufficiently so that ingested microbes are not destroyed.

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Definitions:

Biotic Potential

Maximum possible population growth rate under optimal conditions.

Optimal Conditions

The most favorable environmental or operational settings at which a specific process, such as an enzyme activity, performs its best.

Opportunistic Life History

A strategy wherein organisms take immediate advantage of favorable conditions for growth and reproduction without a fixed pattern, often in unpredictable environments.

Parental Investment

Any contribution by a parent to an offspring that increases the offspring's chance of surviving and reproducing at the cost of the parent's ability to invest in other offspring.