Producers can be photosynthetic or chemosynthetic
Indicate whether the statement is true or false
T
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In the identification of mycobacterial isolates, the Tween 80 test involves:
a. an enzyme that is able to produce Tween 80 from certain ingredients found in the medium. b. a lipase that is able to hydrolyze polyox-yethylene sorbitan monooleate into oleic acid and polyoxyethylated sorbitol. c. the metabolism of niacin to nicotinic acid by enzymatic action. d. testing the isolate for susceptibility to Tween 80.
Which statement about taste receptors is NOT true?
A. Taste receptors are found only on the tongue in animals. B. Taste receptors generate nerve impulses in associated sensory nerve fibers. C. Taste receptors recognize sweet, sour, bitter, salty and umami sensations. D. Taste receptors are chemoreceptors. E. Taste receptors are located within taste buds in humans.
Endospores
A) are bacterial reproductive structures. B) may be produced when nutrients are scarce. C) are produced by bacteria, algae, and fungi. D) are resistant to everything except radiation. E) can last for only about 10 years.
Isopropyl alcohol wiped across a skin site can sterilize it.
Answer the following statement true (T) or false (F)