Which of the following best describes an antibody's mode of action?
A. Antibodies punch holes in bacterial cell membranes.
B. Antibodies immobilize antigens and mark them for destruction.
C. Antibodies bind to antigens and transport them to the liver for excretion.
D. Antibodies secrete antiviral proteins.
Ans: B. Antibodies immobilize antigens and mark them for destruction.
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Nutrients such as glucose and amino acids within the tubular fluid
A. are completely secreted. B. are completely reabsorbed. C. have half of their plasma concentration secreted. D. have a little less than half of their tubular fluid concentration reabsorbed. E. have concentrations in the filtrate and urine that match their transport maximum.
Answer the following statements true (T) or false (F)
1 Secretory products are released from gland cells by exocytosis in merocrine secretion. 2 Aprocrine secretion occurs when gland cells lose part of their cytoplasm along with the secretory product. 3 Endocrine secretions are discharged, often through a duct, onto the surface of the skin or the epithelial lining of an internal passageway that communicates with the exterior. 4 Holocrine secretion occurs when gland cells become packed with secretory products and then burst apart, releasing the secretion and destroying the cells. 5 Exocrine secretory products (hormones are released into the surrounding tissues.
Which type of muscle tissue is autorhythmic?
A. Smooth muscle B. Skeletal muscle C. Both cardiac and smooth muscle are correct. D. Cardiac muscle E. Both skeletal and cardiac muscle are correct.
Synovial fluid is rich in albumin and hyaluronic acid giving it a viscous texture similar to egg white.
Answer the following statement true (T) or false (F)