Which of the Following Statements About C3 Is NOT Correct

question 1

Multiple Choice

Which of the following statements about C3 is NOT correct?

• A)C3 contains an internal thioester bond that participates in covalent linkage to cell surfaces.
• B)C3 is the most abundant complement protein in the serum.
• C)A proteolytic fragment of C3 is part of both the C3 and C5 convertases.
• D)Activated C3 is a serine protease that cleaves C4.
• E)C3 in the plasma is spontaneously cleaved into C3b.

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Definitions:

Cephalocaudal Trend

A developmental pattern in humans where growth and motor skill development proceed from the head downward through the body.

Encephalitis

An inflammation of the brain, often caused by viral infection, that can lead to symptoms such as fever, confusion, seizures, and headaches.

Cephalopedal Trend

A principle of growth and development where development progresses from the head (cephalo) toward the feet (pedal).

Birth Defects

Conditions that are present at birth, which can cause structural changes in one or more parts of the body and can lead to long-term disability or illness.