Which of the statements below does not describe antigens?

A) Antigens exhibit immunogenicity and reactivity.
B) Antigens only come from microbes.
C) The parts of antigen molecules that initiate immune responses are called epitopes or antigenic determinants.
D) Antigens can include proteins, nucleic acids, lipoproteins, glycoproteins, and certain large polysaccharides.


B) Antigens only come from microbes.

Anatomy & Physiology

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In a laboratory experiment, adding curare, which binds to acetylcholine receptors, to the solution around a muscle decreases the size of the end-plate potential. Adding prostigmine, an acetylcholinesterase blocker, increases the size of the end-plate potential. Explain why.

What will be an ideal response?

Anatomy & Physiology

The cell type that expresses prohormone convertases capable of cleaving POMC into an active tropic hormone is the:

A. thyrotrope B. lactotrope C. corticotrope D. gonadotrope E. somatotrope

Anatomy & Physiology

What are the group of loosely packed nuclei within the length of the brainstem called that are involved in cyclic activities such as sleep-wake cycles?

A. limbic system B. diencephalon C. hypothalamus D. reticular formation E. basal nuclei

Anatomy & Physiology

During fertilization, the nuclei of the sperm and the ovum are referred to as _________, before they come together and fuse to form a single nucleus

Fill in the blank with correct word.

Anatomy & Physiology