The gastrointestinal tract generates monomers from polymers by condensation. Mos

Question

The gastrointestinal tract generates monomers from polymers by condensation. Most of the food is digested and absorbed through the wall of the stomach. The initial phase of deglutition is a voluntary process. The intestinal microbiota have a mutualistic relationship with humans. Digestion of starch starts in the stomach. Chemotaxis is the chemical attraction of phagocytes to the site of an infection. The measurement of a particular antigen by an agglutination reaction is called an immunoassay. Epithelial tissues serve as a barrier to microbial infection. The two categories of immune defensive mechanisms are passive and active immunity. The thymus is an example of a secondary lymphoid organ. The primary immune response is faster, stronger, and lasts longer than the secondary immune response. Antihistamines would limit the gastric secretion of hydrochloric acid. Somatostatin is produced in the stomach by S cells. Stress would cause GI motility and secretions to become increased. Bile salts emulsify lipids for digestion by enzymes. Peristalsis is regulated by the parasympathetic nervous system. The movement of digested food into the blood or lymph is called absorption. The combination of chewed food and saliva is called chime. Corprophagia is an important nutrient source for some species. Excess use of antibiotics can kill the normal intestinal microflora, increasing inflammation by pathogenic bacteria. Zymogens are inactive forms of liver enzymes. The complement system integrates innate and adaptive immune responses. Interferons provide specific immunity. Beta interferon is now being used to treat hepatitis B and C. The population of T lymphocytes in the blood is larger than that of the B lymph

Explanation / Answer

1.FALSE (Gastrointestinal tract makes monomers from polymers via hydrolysis)

2. FALSE ( Most of the food is digested and absorbed in small intestine)

3. true

4. true

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