Penicillin Cannot Be Used to Treat Infections Located in the Central

question 19

Multiple Choice

Penicillin cannot be used to treat infections located in the central nervous system because:

• A)it is destroyed by enzymes in the brain and spinal cord.
• B)it cannot pass through the blood-brain barrier.
• C)it is too highly lipid soluble.
• D)it is too large a molecule to fit though pores surrounding brain cells.

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Definitions:

Dominant Characteristics

Traits that are expressed in an organism even when only one copy of the gene responsible is present.

Genotypes

The genetic makeup of an organism, consisting of the alleles inherited from both parents.

Offspring

The biological progeny or children of parents.

Environmental Factors

Various external factors such as climate, soil, water, atmosphere, and living organisms that can influence the development and survival of organisms.