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.
Correct Answer:
Verified
Q50: Biotransformation is another term for:
A)distribution.
B)elimination.
C)absorption.
D)metabolism.
Q51: P450 enzymes are part of:
A)Phase I reactions.
B)Phase
Q52: The majority of drugs leave the body
Q53: Which of the following statements regarding biotransformation
Q54: The membranes that separate fetal blood from
Q56: The membranes that separate fetal blood from
Q57: Large molecules,such as glucose and vitamins,reach the
Q58: All of the following EXCEPT _ are
Q59: Iron is a large molecule reaching the
Q60: Phase II reactions involve:
A)P450 enzymes.
B)cerebral spinal fluid.
C)conjugation.
D)kidneys.
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