An antigen is a protein on cell surfaces that can stimulate the immune system to produce antibodies to fight foreign invaders.
Answer the following statement true (T) or false (F)
True
You might also like to view...
Cerebral palsy usually begins after age 50.
Answer the following statement true (T) or false (F)
Parasympathetic innervation to the hindgut originates in the S2-S4 spinal cord segments. Parasympathetic neurons travel to the prevertebral plexus via which of the following nerves?
A. Greater splanchnic nerves B. Least splanchnic nerves C. Lesser splanchnic nerves D. Lumbar splanchnic nerves E. Pelvic splanchnic nerves F. Sacral splanchnic nerves
Free ribosomes differ from membrane-bound ribosomes in that free ribosomes specialize in synthesizing proteins for export (secretion) from the cell
Indicate whether the statement is true or false.
Which of the following is considered to be the "functional unit" of skeletal muscle fibers?
A. The myofilaments B. The neuromuscular junction C. The sarcoplasmic reticulum D. The sarcomere E. The Z disc