True or false? most antigens are large, complex molecules that are not normally present in the body.

1 answer:

4 0

The answer is true.
Antigens are molecules capable to induce an immune response, "targeted" by antibodies. Antigens are usually proteins, peptides, or polysaccharides but they can combine with lipids and nucleic acids and form more complex antigens (lipopolysaccharide). Usually, antigens are exogenous (foreign substances), but sometimes are part of the host itself (in an autoimmune disease). All of them contain an epitope which is a part of an antigen that can be recognized and bound by an antibody.

You might be interested in

Process by which two simple molecules are joined by the removal of one water molecule

photoshop1234 [79]

Styrene, or C6H5-CH=CH2, can form even lengthy chains, via free radical polymerization. This involves the breakage of the double bond that allows the addition of another molecule of styrene. Repetition allows the addition of another, and yet another, styrene molecule. The process can be controlled to limit the number of additions. Another addition polymerization involves carbocations. Double- or triple-bonded compounds interact with acids to form positively charged carbocations. These can combine with additional molecules to form lengthier carbocations capable of further repeating the process.

7 0

4 years ago

Organisms that belong to the same class must belong to the same:

klasskru [66]

Kingdom
Organisms that belong to the same class must belong to the same animal
kingdom

3 0

3 years ago

Organisms become extinct for many reasons ALL but one is reason

Semenov [28]

Adaptation because organisms adapt to avoid extinction.

3 0

3 years ago