Sketch the graphs of plasma antibody concentration in a primary immune response and a secondary immune response. Explain the significance of the graphs.
What will be an ideal response?
Graphs should resemble Figure 24.8 in the chapter. In a primary response, antibody is not detectable until several
days after exposure to antigen, and peak antibody concentration is lower than it is in a secondary response. The
secondary response shows a more immediate and steep increase in concentration. This more rapid and vigorous
response indicates that the memory cells retained following the first exposure proliferate more readily.
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The double-layered folds of peritoneum that support portions of the small intestine are called ________.
Fill in the blank(s) with the appropriate word(s).
Janet is homozygous dominant for the wild type allele of the gene that when mutant causes cystic fibrosis. Her brother Henry is a heterozygote. They both do not have the disease cystic fibrosis.
Answer the following statement true (T) or false (F)
Esophagus, large intestine, rectum.
A) Respiratory B) Endocrine C) Digestive D) Cardiovascular E) Urinary
Which of the choices below reflects the balance (or imbalance) between the direction and amount of fluid that flows across the capillary walls?
A) hydrostatic and osmotic pressure B) hydrostatic pressure only C) blood volume and viscosity D) plasma and formed element concentration