Which of the following is not a process carried out by bacterial flora?
A. Formation of part of the feces
B. Digestion of cellulose
C. Synthesis of vitamin K
D. Digestion of most of the proteins we get in the diet
E. Production of some of the gases found in flatus
Answer: D
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The sympathetic trunk begins to form during week
A. 5. B. 4. C. 8. D. 10. E. 6.
When food enters the stomach, mass movements are triggered in the colon primarily by the __________ reflex
Fill in the blank(s) with correct word
Answer the following questions true (T) or false (F)
1. During the absolute refractory period, production of an additional action potential is not possible no matter how strong the stimulus. 2. Saltatory conduction is slow due to the presence of insulating myelin around an axon. 3. Conduction speed of a nerve impulse is influenced by the diameter of the axon and the presence or absence of a myelin sheath.
All human cells have both class-1 and class-2 MHC molecules on their membrane surface.
Answer the following statement true (T) or false (F)