Heterocysts

question 37

Multiple Choice

Heterocysts

• A)are found in nitrogen-fixing cyanobacteria.
• B)are used to protect nitrogenase.
• C)produce catalase.
• D)generate oxygen.
• E)are found in nitrogen-fixing cyanobacteria AND are used to protect nitrogenase.

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Definitions:

Digoxin

A medication used to treat various heart conditions, particularly heart failure and atrial fibrillation.

Therapeutic Range

The concentration range of a drug within the blood that is considered effective and safe.

Diphenhydramine

An antihistamine drug used to relieve allergic reactions, treat insomnia, and alleviate symptoms of the common cold.

Side Effect

An unintended and usually adverse effect of a drug or therapy that occurs in addition to the desired therapeutic effect.